Automatic assembling machine for mobile phone keys

Abstract

The utility model relates to an automatic assembling machine for mobile phone keys, which comprises a conveying line, a charging tray feeding device, a feeder feeding device, a positioning table, a first robot reciprocating between the feeder feeding device and the conveying line and a second robot reciprocating between the charging tray feeding device, the positioning table and the conveying line. The feeder feeding device pushes balance hooks in a cartridge holder upwards and one by one in the direction of the first robot, the tray feeding device pushes trays fully loaded with positioning pieces one by one from bottom to top, and the first robot is provided with an assembling clamping jaw which clamps the balance hooks and enables the two ends of the balance hooks to be correspondingly inserted into two positioning holes of a key. The second robot comprises a feeding suction nozzle and an assembling suction nozzle, the feeding suction nozzle sucks the positioning pieces on the material disc one by one and horizontally places the positioning pieces on the positioning table, the positioning table rotates the positioning pieces to be in a side-standing posture, and the assembling suction nozzle sucks the positioning pieces in the side-standing posture and clamps the two ends of the positioning pieces into the two clamping grooves of the keys in a one-to-one correspondence mode.

Description

Technical Field

[0001] The utility model relates to electronic product assembly equipment, in particular to an automatic assembly machine for mobile phone buttons. Background Art

[0002] With the rapid development of science and technology, people's consumption level is constantly improving, and the requirements for the quality of electronic products such as mobile phones, tablets, headphones, etc. are getting higher and higher. While requiring high quality, they also pursue a design-oriented appearance. As a result, more and more electronic products are designed to be smaller, thinner, and often have a certain curvature. Therefore, electronic products are also developing towards high-density integration and ultra-fineness. Correspondingly, the requirements for assembly equipment for electronic components are also getting higher and higher. Among them, many electronic products have buttons for operation on the housing, such as switch buttons, volume adjustment buttons, and function switching buttons. These buttons are often initially assembled with the main body, and they need to be firmly assembled with fasteners such as screws, positioning sheets, and balance hooks.

[0003] Among them, taking the assembly of the middle frame and buttons of a mobile phone as an example, some mobile phones initially assemble the buttons to the middle frame so that the operating end of the button for operation is located on the relatively outer side of the middle frame, and the assembly end for positioning is located on the relatively inner side of the middle frame. It is also necessary to assemble the balance hook and the positioning piece at the assembly end to achieve the fastening assembly of the button and the middle frame. Since the mobile phone itself is relatively small, the thickness of the middle frame is limited, and the shape of the assembly position reserved for the button assembly is not very regular, it is difficult for general assembly equipment to efficiently and accurately achieve the connection between the balance hook and the assembly end and the connection between the positioning piece and the assembly end in a relatively small and irregular space. Therefore, the assembly of the middle frame and buttons of the above-mentioned mobile phone is generally carried out by manual operation, which is inefficient and cannot guarantee accuracy.

[0004] Therefore, there is an urgent need for an automatic mobile phone keypad assembly machine with a simple structure, high assembly precision and high efficiency to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a mobile phone keypad automatic assembly machine with simple structure, high assembly precision and high efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an automatic assembly machine for mobile phone buttons, which is used for the firm assembly of the buttons and the middle frame of the mobile phone, the buttons have two symmetrically arranged positioning parts, the positioning parts are provided with positioning holes and card slots, the automatic assembly machine for mobile phone buttons comprises a conveyor line, a tray loading device and a flyer loading device which are arranged in sequence along the conveying direction of the conveyor line and are located on the same side of the conveyor line, a positioning table arranged between the tray loading device and the conveyor line, a first robot which travels back and forth between the flyer loading device and the conveyor line, and a second robot which travels back and forth between the tray loading device, the positioning table and the conveyor line, the conveyor line is used to convey the middle frame preliminarily assembled with the buttons, and the flyer loading device is arranged in sequence along the conveying direction of the conveyor line and is located on the same side of the conveyor line, The loading device pushes each balancing hook stacked in its clip upward and toward the first robot one by one, and the tray loading device pushes each tray loaded with positioning sheets from bottom to top one by one. The first robot has an assembly clamp that clamps the balancing hook and inserts the two ends of the balancing hook into the two positioning holes of the button one by one. The second robot includes a loading nozzle and an assembly nozzle. The loading nozzle is used to suck the positioning sheets on the tray one by one and place them horizontally on the positioning table. The positioning table is used to rotate the positioning sheet to a sideways posture. The assembly nozzle is used to suck the positioning sheet in a sideways posture from the positioning table, and clamp the two ends of the positioning sheet into the two card slots of the button one by one.

[0007] Preferably, the automatic assembly machine for mobile phone keys of the utility model also includes a detection device, which has a detection camera mounted on the conveyor line and moving back and forth between an assembly position and a detection position of the conveyor line, and is used to identify the position coordinates of the key at the assembly position, and to identify the assembly position of the balance hook and the positioning plate on the key at the detection position.

[0008] Preferably, the assembled clamp obliquely inserts one end of the balancing hook into a positioning hole of the key, and rotatably inserts the other end of the balancing hook into another positioning hole of the key, and the assembled suction nozzle first obliquely inserts one end of the positioning sheet into a slot of the key, and rotatably inserts the other end of the positioning sheet into the other slot of the key.

[0009] Preferably, the tray loading device includes a full bin, an empty bin, a material rack, a supporting mechanism and a transfer mechanism, the full bin and the empty bin are arranged side by side, and both have the material rack slidably arranged in the left-right direction and the supporting mechanism liftably arranged in the up-down direction, the material rack in the full bin is used for stacking trays full of positioning plates, the material rack in the empty bin is used for stacking empty trays, the supporting mechanism in the full bin is used for pushing the stacked trays upward one by one, the supporting mechanism in the empty bin is used for receiving the empty trays and supporting and stacking them downward, and the transfer mechanism is mounted on the top side ends of the full bin and the empty bin, and is used for transferring the empty trays after taking material from the top of the full bin to the empty bin.

[0010] Preferably, the flyer feeding device includes at least one feeding unit, which includes a carrier plate, a pushing mechanism, a pushing mechanism and a positioning mechanism, the magazine is detachably mounted on the relatively left end of the carrier plate, and has at least two magazines that are equidistantly arranged in the front-to-back direction and whose discharge ports are both facing upward, the pushing mechanism is arranged at the relatively left lower end of the carrier plate, and has a pushing part that pushes the balancing hooks stacked in each of the magazines toward the discharge port one by one through a lifting action, the pushing mechanism is arranged at the relatively right end of the carrier plate, and has a pushing part that pushes the balancing hook at the discharge port of the magazine toward the direction of the positioning mechanism through left and right movement, the positioning mechanism is arranged at the upper side end of the magazine, and has a receiving plate that travels back and forth between the magazines to receive the balancing hook pushed by the pushing part, and also has a pressing block that presses and positions the balancing hook on the receiving plate through a lifting action.

[0011] Preferably, the carrier plate is slidably arranged on a carrier platform along the left-right direction, the pushing portion is arranged in a one-to-one correspondence with the magazine, and a movable block is provided at the bottom of each magazine. The movable block moves linearly along the up and down direction under the drive of the pushing portion to push the balancing hooks stacked in the magazine toward the discharge port one by one.

[0012] Preferably, the first robot also includes a six-axis robotic arm and a clamping cylinder connected to the output end of the six-axis robotic arm, the two chucks of the assembled clamping jaws are symmetrically connected to the output end of the clamping cylinder, and the bottom wall or outer side wall of each chuck is provided with a groove matching the shape of the balance hook.

[0013] Preferably, the first robot further comprises an auxiliary component, which is telescopically connected to the clamping cylinder via an elastic component and has two abutment portions which are arranged at opposite rear ends of the two clamps in a one-to-one correspondence.

[0014] Preferably, the loading suction nozzle and the assembly suction nozzle are vertically connected to the output end of the six-axis robotic arm of the second robot, the suction hole of the loading suction nozzle is arranged at its bottom end, and the suction hole of the assembly suction nozzle is arranged at its side end.

[0015] Preferably, the second robot also includes a clamping cylinder and a clamping member connected to the output end of the six-axis robotic arm, and the output end of the clamping cylinder is connected to at least one of the modular suction nozzle and the clamping member, and is used to drive at least one connected thereto to make a linear motion towards or away from the other, so as to fix the positioning plate between the two.

[0016] Compared with the prior art, the automatic assembly machine for mobile phone keys provided by the utility model transmits the central frame through a conveyor line, and automatically loads the balancing hook and the positioning piece through a feeder loading device and a tray loading device which are arranged on the same side of the conveyor line and in sequence along the conveying direction of the conveyor line, and a positioning platform is also arranged between the tray loading device and the conveyor line, so that the balancing hook is clamped by the assembly claws of the first robot which travels back and forth between the feeder loading device and the conveyor line, and the two ends of the balancing hook are inserted into the two positioning holes of the key one by one, and the positioning pieces on the tray are sucked one by one and placed horizontally on the positioning platform through the loading nozzle of the second robot which travels back and forth between the tray loading device, the positioning platform and the conveyor line, and the positioning pieces are rotated into a sideways posture by the positioning platform, and the second robot also sucks the positioning piece in the sideways posture on the positioning platform through the assembly nozzle, and clamps the two ends of the positioning piece into the two card slots of the key one by one, so as to realize the firm assembly of the key and the central frame, and the whole machine has a high degree of automation, which effectively improves the assembly accuracy and efficiency, and has a simple structure, a reasonable and compact layout, and effectively reduces the occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram showing that the keys of the mobile phone of the present invention are firmly assembled on the middle frame.

[0018] Figure 2 for Figure 1 Enlarged view of part A.

[0019] Figure 3 It is a three-dimensional diagram of the automatic assembly machine for mobile phone keys of the utility model.

[0020] Figure 4 It is a top view of the automatic assembly machine for mobile phone keys of the utility model.

[0021] Figure 5 It is a three-dimensional diagram of the conveying line of the utility model.

[0022] Figure 6 It is a three-dimensional diagram of the feeder feeding device of the present utility model.

[0023] Figure 7 It is a side view of the feeder feeding device of the utility model.

[0024] Figure 8 It is a top view of the positioning mechanism of the utility model.

[0025] Fig. 9 This is a three-dimensional diagram of a structure of the first robot of the utility model.

[0026] Fig.10 for Fig. 9 Enlarged view of part B.

[0027] Fig.11 It is a three-dimensional diagram of another structure of the first robot of the utility model.

[0028] Fig.12 It is a three-dimensional diagram of some components of the first robot of the present utility model.

[0029] Fig.13 It is a three-dimensional diagram of the material tray loading device of the utility model.

[0030] Fig.14 It is a three-dimensional diagram of the second robot of the present invention.

[0031] Fig.15 It is a three-dimensional diagram of some components of the second robot of the present invention.

[0032] Fig.16 It is a three-dimensional diagram of the detection device arranged above the tray loading device and the positioning table. DETAILED DESCRIPTION

[0033] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0034] See also Figure 1 and Figure 2The utility model relates to the assembly of buttons on the shell of an electronic product, and in particular to the assembly of buttons 202 on the middle frame 201 of a mobile phone 200. Of course, the electronic product can also be a tablet computer, a headset, a smart watch, etc. The buttons are specifically volume buttons, power buttons, and function switching buttons. Among them, in this application, the button 202 has been preliminarily assembled to the middle frame 201, and the operating end of the button 202 is relatively protruding from the relative outer side of the middle frame 201 for operation, while the assembly end of the button 202 is located on the relative inner side of the middle frame 201 so as to be firmly assembled with the middle frame 201. Specifically, at least one assembly hole is opened on the side wall of the middle frame 201, and the buttons 202 are assembled in the assembly hole one by one. The assembly end of the button 202 has two symmetrically arranged positioning parts 2021, and the positioning part 2021 is provided with a positioning hole 2022 and a card slot 2023. The two ends of the balancing hook 203 are correspondingly inserted into the positioning holes 2022 of the two positioning parts 2021 to maintain the flatness of the button 202 on the middle frame 201. The two ends of the positioning sheet 204 are correspondingly snapped into the slots 2023 of the two positioning parts 2021 to fasten the flattened button 202 to the middle frame 201 to prevent it from shifting. Specifically, the positioning hole 2022 is provided at the relatively outer ends of the positioning part 2021, such as on the left side wall of the positioning part 2021 on the left, and on the right side wall of the positioning part 2021 on the right. The slot 2023 is provided at the relatively top side end of the positioning part 2021, and is located between the assembly hole of the middle frame 201 and the positioning hole 2022 of the button 202. In addition, as Fig.12 As shown, the balance hook 203 is tubular, and its outer contour is roughly in the shape of a "C", specifically including a horizontal arm 2031, a bending arm 2032 and a return bending arm 2033. The head and tail ends of the horizontal arm 2031 extend in a direction perpendicular to it to form two bending arms 2032. The free ends of the two bending arms 2032 are bent toward each other to form two return bending arms 2033 parallel to the horizontal arm 2031. The length of the return bending arm 2033 is much smaller than that of the horizontal arm 2031, and is used for plugging and matching with the positioning hole 2022. The positioning piece 204 has a certain thickness, and the clamping structures at both ends thereof may be different, one end of which has a clamping interface with an opening facing outward, and the other end of which has a clamping interface with an opening facing downward.

[0035] See 3 and Figure 4In general, the mobile phone keypad automatic assembly machine 100 provided in the preferred embodiment of the utility model is suitable for firmly assembling the keys 202 of the mobile phone 200 and the middle frame 201, and includes a conveyor line 10, a feeder loading device 20 and a tray loading device 30 arranged in sequence along the transmission direction of the conveyor line 10 and located on the same side of the conveyor line 10, a positioning table 40 arranged between the tray loading device 30 and the conveyor line 10, a first robot 50 that travels back and forth between the feeder loading device 20 and the conveyor line 10, and a second robot 60 that travels back and forth between the tray loading device 30, the positioning table 40 and the conveyor line 10. Specifically, the conveyor line 10, the feeder loading device 20, the tray loading device 30, the positioning table 40, the first robot 50 and the second robot 60 are all arranged on the machine 101, the conveyor line 10 is located on the relatively left side of the machine 101 and is arranged along the front and back direction of the machine 101, the feeder loading device 20 and the tray loading device 30 are arranged front and back on the relatively right side of the machine 101, and the feeder loading device 20 is arranged along the left and right direction of the machine 101, the tray loading device 30 is arranged along the front and back direction of the machine, the first robot 50 is arranged between the feeder loading device 20 and the conveyor line 10 at the relatively front side of the machine 101, the positioning table 40 is located on the relatively left side of the tray loading device 30, and the second robot 60 is arranged between the tray loading device 30 and the conveyor line 10 at the relatively rear side of the positioning table 40.

[0036] The conveyor line 10 is used to transport the middle frame 201 preliminarily assembled with the key 202, and also to transport the key 202 and the middle frame 201 firmly assembled by the balance hook 203 and the positioning piece 204. The feeder loading device 20 is used to load the clip 21 (see Figure 6 ) are pushed upward and toward the first robot 50 one by one to realize automatic feeding of the balancing hooks 203. The tray loading device is used to push the trays 300 loaded with the positioning pieces 204 one by one from bottom to top to realize automatic feeding of the positioning pieces 204. The first robot 50 has a combination clamping claw 51 (see FIG. 1 ) for clamping the balancing hook 203 and inserting the two ends of the clamped balancing hook 203 into the two positioning holes 2022 of the button 200 one by one. Fig. 9 and Fig.11 The second robot 60 includes a loading nozzle 61 (see Fig.14) and the assembly suction nozzle 62, the loading suction nozzle 61 is used to suck the positioning pieces 204 on the material tray 300 one by one and place them horizontally on the positioning platform 40, so that the positioning platform 40 can rotate the positioning pieces 204 to a sideways posture, so that the assembly suction nozzle 62 can suck the positioning pieces 204 in a sideways posture from the positioning platform 40, and clamp the two ends of the sucked positioning pieces 204 into the two clamping grooves 2023 of the key 202 one by one. In order to improve the assembly accuracy and quality, during assembly, the assembly clamping claw 51 obliquely inserts one end of the balance hook 203 into a positioning hole 2022 of the key 201, and rotatably inserts the other end of the balance hook 203 into another positioning hole 2022 of the key 201. Similarly, the assembly nozzle 62 first obliquely inserts one end of the positioning piece 204 into a slot 2023 of the key 201 , and rotatably inserts the other end of the positioning piece 204 into another slot 2023 of the key 201 .

[0037] like Figure 3 and Figure 4 As shown, specifically, in some embodiments, the automatic assembly machine 100 of mobile phone buttons of the utility model further includes a detection device 70, which has a detection camera 71 mounted on the conveyor line 10 and reciprocating in a straight line along the conveying direction of the conveyor line 10, so that the coordinate position of the button 202 on the center frame 201 is identified by the detection camera 71 to guide the alignment assembly of the first robot 50 and the second robot 60, thereby achieving efficient and high-precision assembly operations. The detection camera 71 also identifies the assembly position of the balance hook 203 and the positioning piece 204 on the button 202, that is, performs precision detection after assembly, and effectively guarantees the assembly quality through detection and identification.

[0038] Of course, the mobile phone keypad automatic assembly machine 100 of the utility model also includes a control module, which is respectively connected to the conveyor line 10, the feeder loading device 20, the tray loading device 30, the positioning platform 40, the first robot 50, the second robot 60 and the detection device 70, and is used to control the coordinated actions of the devices connected thereto. It should be noted that the specific structure and control principle of the control module are well known in the art, so they will not be described in detail here.

[0039] See also Figure 5Specifically, the conveyor line 10 adopts a belt conveyor line, and the conveyor line 10 is provided with a feeding position 10a, an assembly position 10b, a detection position 10c and a discharging position 10d in sequence, wherein the assembly position 10b is located between the first robot 50 and the second robot 60, so that the first robot 50 and the second robot 60 can successively complete the corresponding assembly of the balance hook 203 and the positioning piece 204 on the button 202 at the assembly position 10b. In some embodiments, the conveyor line 10 includes a plurality of belt conveyor mechanisms that are connected in sequence and arranged in a straight line, and the transmission accuracy is further improved by segmented transmission. Specifically, a barcode scanner 13 is provided at the feed position 10a, which is used to scan and identify the middle frame 201 equipped with the button 202 that is flowed or placed at the feed position 10a, and feed back the identification information to the control module. In some embodiments, the conveyor line 10 includes a feed line 11 and a return line 12 arranged side by side. The feed line 11 and the return line 12 are both belt conveyor lines. The feed line 11 transfers the middle frame 201 preliminarily assembled with buttons 202 through the carrier 14 to complete the corresponding assembly operation. The return line 12 is used for the return transfer of the empty carrier 14 after taking the material, so as to facilitate the recycling of the carrier 14 in the assembly line.

[0040] Combination Figures 3 to 5 Specifically, the detection camera 71 travels back and forth between the assembly position 10b and the detection position 10c, identifies the coordinate position of the button 202 on the middle frame 201 at the assembly position 10b, and feeds back the identification information to the control module. The control module compares with the preset coordinate position to issue instructions to the first robot 50 and the second robot 60, guiding the two to adjust their positions accordingly, so that the acquired balance hook 203 and positioning piece 204 are accurately aligned and assembled to the middle frame 201. The detection camera 71 identifies the assembly position of the balance hook 203 and the positioning piece 204 on the button 202 at the detection position 10c, and feeds back the identification information to the control module. The control module compares with the preset assembly position to confirm whether the assembly accuracy meets the requirements, so as to facilitate the removal of defective products. Specifically, the detection device 70 also includes a linear module 72, which is mounted on the machine platform 101 and arranged along the front-to-back direction of the machine platform 101, and is used to drive the detection camera 71 connected to its output end to move forward and backward to switch between the assembly position 10b and the detection position 10c.

[0041] See also Figures 6 to 8Specifically, the feeder feeding device 20 has at least one feeding unit 20a. In addition to the clip 21, the feeding unit 20a also includes a carrier plate 22, a push mechanism 23, a push mechanism 24 and a positioning mechanism 25. The clip 21 is detachably arranged on the left side of the carrier plate 22, so that the balance hook 203 can be pre-loaded into the clip 21, which effectively improves the feeding efficiency. By replacing the clip 21, the balance hooks 203 of different specifications can also be quickly replaced and fed. The clip 21 also has at least two magazines 211 that are equidistantly arranged in the front and rear directions and whose discharge ports are facing upward. The setting of multiple magazines 211 can effectively increase the feeding quantity, reduce the number of feeding times, and thus improve the assembly efficiency. For example, the number of magazines 211 of the clip 21 can be 3, 4 or 5, etc., but is not limited thereto. The pushing mechanism 23 is arranged at the relatively lower left end of the carrier plate 22, and has a pushing part 231 that pushes the balancing hooks 203 stacked in the magazine 211 one by one toward the discharge port of the magazine 211 through a lifting action. The pushing mechanism 24 is mounted at the relatively right end of the carrier plate 22, and has a pushing part 241 that performs a linear reciprocating motion in the left and right directions, so that the balancing hooks 203 at the discharge port of the magazine 211 are pushed one by one toward the direction of the positioning mechanism 25 through the horizontal pushing action of the pushing part 241. Among them, the pushing part 241 is arranged in a one-to-one correspondence with the magazine 211. The positioning mechanism 25 is arranged at the upper side end of the magazine 21 and has a receiving plate 251 that moves linearly along the front-to-back direction to travel back and forth between the magazines 211, and is used to receive the balancing hook 203 pushed by the pushing part 241 corresponding to each magazine 211. The positioning mechanism 25 also has a pressing block 252 that performs a lifting action, and is used to press and position the balancing hook 203 on the receiving plate 251.

[0042] In order to facilitate loading and unloading of the magazine 21, in some embodiments, the carrier plate 22 is slidably arranged on the carrier 26 along the left and right direction, so that the feeding efficiency is effectively improved through the pull-out sliding setting. Specifically, each magazine 211 is arranged along the up-down direction, and a movable block 212 is respectively provided at the bottom of each magazine 211. The movable block 212 is used to move linearly along the up-down direction to push the balance hooks 203 stacked in the magazine 211 one by one toward the direction of the discharge port. Among them, the edges of each magazine 211 are respectively provided with vertical linear guides arranged along the up-down direction, and the movable block 212 is slidably provided on the vertical linear guides, so as to achieve smooth and accurate movement. In addition, the movable block 212 can be partially extended into the magazine 211 to push the stacked balance hooks 203 from the bottom. Of course, the horizontal arm 2031 of the balance hook 203 can also protrude from the side opening of the magazine 211 to the outside of the magazine 211, and the movable block 212 can also achieve the top-pushing loading operation by pushing the horizontal arm 2031 protruding from the outside.

[0043] Specifically, the push portion 231 and the movable block 211 can be arranged in a one-to-one correspondence, and each push portion 231 moves linearly in the vertical direction under the drive of the push cylinder connected to it, so as to realize the push feeding operation. Of course, in order to optimize the structure, in some embodiments, a push portion 231 can be moved linearly in the front-to-back direction and selectively moved to a position relative to each movable block 212, so as to push each movable block 212 respectively. At this time, the number of push cylinders is also simplified to one, and the push cylinder is specifically connected to the output end of a longitudinal push motor or cylinder, so as to move linearly in the front-to-back direction under the drive of the longitudinal push motor or cylinder, so as to realize the alignment with each movable block 212. Among them, a positioning column 2121 is convexly provided on the side of the movable block 212 opposite to the push portion 231, and the top side end of the push portion 231 has a groove matching the positioning column 2121, so that the positioning column 2121 is plugged and matched with the groove to realize accurate positioning and pushing operation.

[0044] Specifically, in some embodiments, the front side end of the pushing mechanism 24 also has a guide plate 242, which is arranged horizontally, and has a guide groove 2421 arranged in a one-to-one correspondence with the pushing portion 241, which is used to guide and limit the horizontal movement of the pushing portion 241. The guide groove 2421 is specifically arranged in the left-right direction, penetrates the left and right side walls of the guide plate 242 in the left-right direction, and penetrates the upper and lower side walls of the guide plate 242 in the upper and lower directions at a position opposite to the discharge port of the magazine 211. Further, in order to prevent the balance hook 203 from shifting during the pushing process, a limit plate 243 is installed on the guide plate 242 at a position corresponding to each discharge port, and the pushing portion 241 passes through the penetration space formed between the guide plate 242 and the limit plate 243 to achieve accurate pushing of the balance hook 203. In addition, the pushing mechanism 24 is mounted on the carrier plate 22 via a mounting frame 244 , and the mounting frame 244 also has a pushing cylinder 245 connected to the pushing portion 241 in a one-to-one correspondence at the rear side end thereof, for driving the pushing portion 241 connected thereto to move linearly in the left-right direction.

[0045] Specifically, the positioning mechanism 25 further includes a three-axis linear module 253 and a lifting cylinder 254. The receiving plate 251 and the lifting cylinder 254 are both connected to the output end of the three-axis linear module 253. The pressing block 252 is connected to the output end of the lifting cylinder 254 and is located at the upper left relative to the receiving plate 251. The three-axis linear module 253 drives the receiving plate 251 and the pressing block 252 to move linearly in the front-back, up-down and left-right directions, so that the receiving plate 251 first moves to a position corresponding to the guide groove 2421 of the guide plate 242 to receive the balancing hook 203. The lifting cylinder 254 is used to drive the pressing block 252 to move up and down to press and position the balancing hook 203 on the receiving plate 251. Among them, the position of the material receiving plate 251 relative to the magazine 211 has a limiting groove 2511, which is roughly in the shape of a "U", so as to limit the balance hook 203 from three directions, and the pushing part 241 directly pushes the balance hook 203 to the bottom of the limiting groove 2511, so as to facilitate the first manipulator 50 to pick up materials. In addition, the width of the pressing block 252 is smaller than the width of the limiting groove 2511, and the pressing block 252 is pressed and positioned at the relative center position of the limiting groove 2511, so as to facilitate the assembly of the clamping jaws 51 of the first manipulator 50 to pick up materials from both sides of the pressing block 252. In addition, in order to facilitate the assembly of the clamping jaws 51 to efficiently pick up materials, the material receiving plate 251 is also provided with a positioning groove 2512 located at the edge of the limiting groove 2511, so as to improve the efficiency of picking up materials through rapid alignment.

[0046] like Figure 7 As shown, specifically, in some embodiments, the feeder feeding device 20 has two feeding units 20a, so that uninterrupted feeding is achieved through the two feeding units 20a. At this time, the two carriers 22 of the two feeding units 20a can be arranged on the same carrier 26, thereby simplifying the structure. Of course, the two feeding units 20a can also share a positioning mechanism 25 and / or a pushing mechanism 23 to further simplify the structure.

[0047] It should be noted that, in order to improve the assembly accuracy, in some embodiments, the detection device 70 also includes a top camera 73 mounted on the upper side of the feeder loading device 20 to identify the position coordinates of the balance hook 203 provided by the feeder loading device 20 from the top side, and send the identification information to the control module, so that the control module can send instructions to the first robot 50 to guide the first robot 50 to pick up materials in position. Among them, the top camera 73 can move synchronously with the material receiving plate 251 to identify the position coordinates of the balance hook 203 provided by each magazine 211. Of course, the top camera 73 can also be fixed, and the material receiving plate 251 is moved to the bottom of the top camera 73 for identification. In addition, in some embodiments, the detection device 70 further includes a bottom camera 74 arranged beside the feeder feeding device 20, which is used to identify the position coordinates of the balance hook 203 clamped by the first robot 50 from the bottom side, and send the identification information to the control module, so that the control module can send instructions to the first robot 50 to guide the first robot 50 to adjust the position, thereby achieving precise assembly. Figure 4 As shown, in some embodiments, the detection device 70 also includes a top camera 75 mounted on the assembly position 10b of the conveyor line 10, which is used to perform real-time positioning of the balance hook 203 and the positioning plate 204 from the top side during the assembly process, thereby performing real-time adjustments through the instructions fed back by the control module, effectively preventing position deviation during the assembly process and achieving precise assembly.

[0048] See also Figures 9 to 13 The first robot 50 further includes a six-axis mechanical arm 52 and a clamping cylinder 53 connected to the output end of the six-axis mechanical arm 52. The two clamps 511 of the assembly clamp 51 are symmetrically connected to the output end of the clamping cylinder 53, and a groove 5111 matching the shape of the balance hook 201 is correspondingly provided on the bottom wall or the outer side wall of each clamp 511. The six-axis mechanical arm 52 is used to drive the assembly clamp 51 to move and rotate, so that it can go back and forth between the feeder loading device 20 and the conveyor line 10 to complete the material collection of the balance hook 203 and the assembly with the button 202. The clamping cylinder 53 is used to drive the two clamps 511 of the assembly clamp 51 to move away from or approach each other in a straight line to clamp or release the balance hook 105, and in this process of taking and placing, the groove 5111 effectively prevents the balance hook 203 from falling off, effectively improving the stability of clamping and assembly. That is, the two clamping heads 511 support and fix the balancing hook 203 from the inside to the outside by means of the clamping cooperation between the grooves 5111 and the balancing hook 203 .

[0049] Specifically, Fig. 9 and Fig.10As shown, in some embodiments, the first robot 50 has a first structure, and its groove 5111 is formed by the bottom wall of the clamp 511 being recessed in the direction of the top wall thereof. Then, the assembled clamp 51 moves downward under the driving of the six-axis robot arm 52, so that the grooves 5111 of the two clamps 511 are placed on the horizontal arm 2031 of the balancing hook 203, and the two clamps 511 are then driven by the clamping cylinder 53 to move back to back, so as to move away from each other to the connection between the horizontal arm 2031 of the balancing hook 203 and the bending arms 2032 on both sides, so as to support and fix the balancing hook 2031. In some embodiments, in order to facilitate the identification of the detection device 70, the size of the clamping end with the groove 5111 on the clamp 511 is smaller than the size of its main body, thereby forming an avoidance area 5112 for easy observation.

[0050] Specifically, Fig.11 and Fig.12 As shown, in other embodiments, the first robot 50 also has a second structure, which is mainly different from the first structure in that, in this structure, the groove 5111 is formed by the relative outer side walls of the clamp 511 being recessed in the direction of the inner side wall thereof, wherein the side walls of the two clamps 511 facing each other are their respective inner side walls, and the side walls of the two opposite sides are their respective outer side walls. Then, the two clamps 511 move in opposite directions under the drive of the clamping cylinder 53, so that the grooves 5111 of the two move away from each other until they are engaged with the two bending arms 2032 of the balance hook 203, thereby achieving support and fixation of the balance hook 2031. Among them, in this structure, the clamping end of the clamp 511 is hook-shaped. Specifically, there is also a cutting bevel between the inner side wall and the bottom side wall of the clamp 511, thereby effectively reducing the size of the clamping end of the clamp 511 to form a hook-shaped clamping end.

[0051] Continue reading Fig.11 and Fig.12 In some other embodiments, on the basis of the second structure, the first robot 50 also includes an auxiliary part 54, which is telescopically connected to the clamping cylinder 53 through an elastic component 55, and has two abutment parts 541 arranged one by one at the opposite rear ends of the two clamps 511, thereby not only preventing the balance hook 203 from detaching from the two clamps 511 during the transfer and assembly process, but also realizing rapid alignment through the alignment of the two abutment parts 541 telescopically arranged up and down with the positioning groove 2512 of the flyer loading device 20, thereby effectively improving the material picking efficiency. Specifically, the elastic component 55 includes a connecting plate 551 installed on the shell of the clamping cylinder 53, a sliding plate 552 slidably installed on the connecting plate 551, and at least one spring 553 connected between the top side end of the sliding plate 552 and the connecting plate 551. The auxiliary component 54 is installed on the bottom side end of the sliding plate 552, and in the initial position, the bottom end of the auxiliary component 54 is located below the bottom end of the abutment 541.

[0052] During specific operation, when the assembled clamping jaws 51 move downward to pick up materials under the drive of the six-axis robot 52, the two abutment portions 541 of the auxiliary component 54 are first inserted into the two corresponding positioning grooves 2512 on the receiving plate 251 to achieve rapid alignment. As the six-axis robot 52 continues to press downward, the spring 553 is compressed, and the auxiliary component 54 moves upward to a predetermined position. The grooves 5111 of the two clamps 511 just move down to a position opposite to the two bending arms 2032. As a result, under the drive of the clamping cylinder 53, the two clamps 511 move back to back, so that the grooves 5111 of the two move away from each other until they are engaged with the two bending arms 2032 of the balancing hook 203, thereby achieving support and fixation of the balancing hook 2031.

[0053] See also Fig.13 The tray loading device 30 includes a full bin 31, an empty bin 32, a material rack 33, a supporting mechanism 34 and a transfer mechanism 35. The full bin 31 and the empty bin 32 are arranged side by side, and both have a material rack 33 that is slidably arranged in the left-right direction and a supporting mechanism 34 that is liftable in the up-down direction. The material rack 33 in the full bin 31 is used for stacking the trays 300 filled with the positioning pieces 204, and the material rack 33 in the empty bin 32 is used for stacking the empty trays 300. The trays 300 are stacked, the supporting mechanism 34 in the full bin 31 is used to push the stacked trays 300 upward one by one, the supporting mechanism 34 in the empty bin 32 is used to receive the empty trays 300 and support the empty trays 300 downward for stacking, and the transfer mechanism 35 is set at the top side ends of the full bin 31 and the empty bin 32, and is used to transfer the empty trays 300 after taking out the material at the top of the full bin 31 to the top of the empty bin 32, so that the empty trays 300 are stacked in the empty bin 32. Specifically, the two racks 33 are slidably set in the corresponding full bin 31 and the empty bin 32 through the respective connected pulling mechanisms 36, so as to facilitate the stacking and loading of the trays 300 loaded with the positioning sheets 204 outside the full bin 31 and the removal of the empty trays 300 outside the empty bin 32. The supporting mechanism 34 specifically drives the supporting plate 342 connected thereto to move up and down relative to the material rack 33 through the lifting motor 341, so that in the full material bin 31, the material tray 300 loaded with the positioning sheets 204 stacked on the material rack 33 is pushed upward from the bottom, and correspondingly, in the empty tray bin 32, the empty material tray 300 is supported downward and put back on the material rack 33. The transfer mechanism 35 drives the clamping assembly 353 or the adsorption assembly connected to the output end of the vertical movement module 352 to move linearly in the front-to-back direction and the up-down direction through the translation module 351 and the vertical movement module 352 connected to the output end of the translation module 351, so as to pick up and transfer the empty material tray 300 after taking out the material from the top of the full material bin 31 to the empty tray bin 32.

[0054] See also Fig.14 and Fig.15The second robot 60 further includes a six-axis robot arm 63, wherein a loading nozzle 61 and a combination nozzle 62 are vertically connected to the output end of the six-axis robot arm 63, wherein a suction hole 611 ( Fig.14 The side end of the assembly suction nozzle 62 is provided with a suction hole 621 ( Fig.15 Specifically, the side end of the assembly suction nozzle 62 is provided with a contoured groove matching the shape of the positioning piece 204, and the adsorption hole 621 is provided in the contoured groove, thereby improving the stability of adsorption. The six-axis robot arm 63 drives the loading suction nozzle 61 and the assembly suction nozzle 62 to move and rotate, so that the two rotate to their respective pick-up and placement positions in turn, wherein the loading suction nozzle 61 sucks the positioning pieces 204 in the material tray 300 located at the top of the full material bin 31 from the top one by one, and places the sucked positioning pieces 204 flatly in the bearing area of ​​the positioning platform 40, and the positioning platform 40 fixes the positioning pieces 204 received by the vacuum suction cup or / and the clamping member provided at the edge of the bearing area, and drives the fixed positioning pieces 204 to rotate 90° through the rotating motor connected to the positioning platform 40, so that the positioning pieces 204 are converted from a horizontal posture to a side-standing posture, so as to facilitate the assembly suction nozzle 62 to suck the positioning pieces 204 in a side-standing posture on the positioning platform 40 from the side to complete the subsequent assembly operation. In addition, the loading suction nozzle 61 and the assembly suction nozzle 62 both use vacuum adsorption to achieve the pick-up and placement operation.

[0055] Specifically, in some embodiments, the second robot 60 further includes a clamping cylinder 64 and a clamping member 65 connected to the output end of the six-axis robot arm 63, and the output end of the clamping cylinder 64 is connected to at least one of the assembly suction nozzle 62 and the clamping member 65, and is used to drive at least one connected thereto to make a linear motion close to or away from the other, so as to clamp and fix the positioning piece 204 between the assembly suction nozzle 62 and the clamping member 65, thereby preventing the positioning piece 204 from shifting or falling off during the transfer and assembly process, effectively improving the stability of the positioning of the positioning piece 204, thereby improving the assembly efficiency and accuracy. Further, the clamping end of the clamping member 65 is provided with a magnet 651, so as to further enhance the stability of the positioning through magnetic adsorption with the metal positioning piece 204.

[0056] See also Fig.16In order to improve the assembly accuracy, in some embodiments, the detection device 70 also includes a top camera 76 arranged across the upper side of the tray loading device 30 and the positioning platform 40. The top camera 76 travels back and forth between the tray loading device 30 and the positioning platform 40. At the tray loading device 30, the position coordinates of the positioning piece 204 provided by the tray loading device 30 are identified and fed back from above, so that the control module sends instructions to the second robot 60 to guide the loading nozzle 61 to position and absorb the positioning piece 204; at the positioning platform 40, the position coordinates of the positioning piece 204 after the posture is changed on the positioning platform 40 are identified and fed back from above, so that the control module sends instructions to the second robot 60 to guide the assembly nozzle 62 to position and absorb the positioning piece 204. The top camera 76 is connected to the output end of the three-way linear module 77, so that it moves back and forth in a straight line in the up-down, left-right and front-back directions under the drive of the three-way linear module 77, so as to identify the coordinates of each positioning piece 204 in the tray 300 at the top of the tray loading device 30 and the positioning piece 204 on the positioning platform 40. Further, in some embodiments, a bottom camera is also provided between the assembly position 10b of the conveyor line 10 and the positioning platform 40, which is used to identify and feedback the coordinates of the positioning piece 204 sucked by the assembly nozzle from the bottom side, so as to facilitate the control module to send instructions to the second robot 60 to guide the assembly nozzle 62 to adjust the position, thereby achieving accurate assembly.

[0057] The following is combined with Figure 1 To Attachment Fig.16 , the working process of the mobile phone key automatic assembly machine 100 provided by the utility model is described:

[0058] When the middle frame 201 preliminarily assembled with the button 202 flows into or is placed in the feeding position 10a of the conveyor line 10, the middle frame 201 is scanned and identified by the barcode scanner 13, and the identification information is fed back to the control module, so that during the conveyor line 10 transfers the middle frame 201 to the assembly position 10b, the feeder loading device 20 and the tray loading device 30 act accordingly to feed the material according to the instruction of the control module; thereafter, the first robot 50 acts under the instruction of the control module, and The assembly clamp 51 clamps the balancing hook 203 provided by the feeder loading device 20, and moves the clamped balancing hook 203 to the assembly position 10b, so that the two ends of the balancing hook 203 are plugged into the two positioning holes 2022 of the button 202 one by one; at the same time, the second robot 60 moves under the instruction of the control module, first sucks the positioning pieces 204 on the tray 300 one by one through the loading nozzle 61 that goes back and forth between the tray loading device 30 and the positioning platform 40, and places them horizontally The positioning plate 204 is placed on the positioning platform 40, and the positioning plate 204 is rotated by the positioning platform 40 to a sideways posture. At this time, the first robot 50 has just completed the assembly of the balance hook 203 and the button 202. Then, the assembly nozzle 62 sucks the positioning plate 204 in the sideways posture on the positioning platform 40, and the two ends of the positioning plate 204 are correspondingly clamped into the two clamping grooves 2023 of the button 202, so as to realize the firm assembly of the button 202 and the middle frame 201. Then, the conveyor line 10 takes the firmly assembled button 2 02 and the middle frame 201 are transmitted to the detection position 10c, and the detection camera 71 detects, identifies and provides feedback on the assembly accuracy of the balance hook 203 and the positioning piece 204 on the key 202 to confirm whether the assembly accuracy meets the requirements, thereby facilitating the classification of the keys 202 and the middle frame 201 that flow out of the machine at the discharge position 10d after the detection; finally, the above operations are continuously repeated to realize the automated assembly line operation of firmly assembling the preliminarily assembled mobile phone keys 202 and the middle frame 201.

[0059] Compared with the prior art, the mobile phone key automatic assembly machine 100 provided by the utility model transmits the middle frame 201 preliminarily assembled with the key 202 through the conveyor line 10, and automatically loads the balance hook 203 and the positioning piece 204 through the feeder loading device 20 and the tray loading device 30 which are arranged on the same side of the conveyor line 10 and in sequence along the conveying direction of the conveyor line 10, and a positioning platform 40 is also arranged between the tray loading device 30 and the conveyor line 10, so that the balance hook 203 is clamped by the assembly claw 51 of the first robot 50 which travels back and forth between the feeder loading device 20 and the conveyor line 10, and the two ends of the balance hook 203 are plugged into the two positioning holes 2022 of the key 202 one by one, so as to keep the key 202 intact. The flatness of the middle frame 201 is improved; and the loading suction nozzle 61 of the second robot 60 which travels back and forth between the tray loading device 30, the positioning platform 40 and the conveyor line 10 sucks the positioning pieces 204 on the tray 300 one by one and places them horizontally on the positioning platform 40, and the positioning piece 204 is rotated to a sideways posture by the positioning platform 40, so that the second robot 60 sucks the positioning piece 204 in the sideways posture on the positioning platform 40 through the assembly suction nozzle 62, and clips the two ends of the positioning piece 204 into the two card slots 2023 of the button 202 one by one, so as to realize the firm assembly of the button 202 and the middle frame 201. The whole machine has a high degree of automation, effectively improves the assembly accuracy and efficiency, and has a simple structure, a reasonable and compact layout, and effectively reduces the occupied space.

[0060] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An automatic assembly machine for mobile phone buttons, used for firmly assembling the buttons and the middle frame of a mobile phone, characterized in that: The key has two symmetrically arranged positioning parts, and the positioning parts are provided with positioning holes and card slots. The mobile phone key automatic assembly machine includes a conveyor line, a tray loading device and a feeder loading device arranged in sequence along the conveying direction of the conveyor line and located on the same side of the conveyor line, a positioning platform arranged between the tray loading device and the conveyor line, a first robot that travels back and forth between the feeder loading device and the conveyor line, and a second robot that travels back and forth between the tray loading device, the positioning platform and the conveyor line. The conveyor line conveys the middle frame preliminarily assembled with the keys, and the feeder loading device moves each balance hook stacked in its clip upward and toward The first robot pushes them one by one in the direction of the first robot, and the material tray loading device pushes the material trays loaded with positioning pieces one by one from bottom to top. The first robot has an assembly clamping claw that clamps the balance hook and inserts the two ends of the balance hook into the two positioning holes of the button one by one. The second robot includes a loading suction nozzle and an assembly suction nozzle. The loading suction nozzle is used to suck the positioning pieces on the material tray one by one and place them horizontally on the positioning table. The positioning table is used to rotate the positioning pieces to a sideways posture. The assembly suction nozzle is used to suck the positioning pieces in a sideways posture from the positioning table, and clamp the two ends of the positioning pieces into the two card slots of the button one by one.

2. The automatic assembly machine for mobile phone keys as claimed in claim 1, characterized in that: It also includes a detection device, which has a detection camera mounted on the conveyor line and moving back and forth between an assembly position and a detection position of the conveyor line, and is used to identify the position coordinates of the key at the assembly position, and to identify the assembly position of the balance hook and the positioning plate on the key at the detection position.

3. The automatic assembly machine for mobile phone keys as claimed in claim 1, characterized in that: The assembled clamping claw obliquely inserts one end of the balancing hook into a positioning hole of the key, and rotatably inserts the other end of the balancing hook into another positioning hole of the key; the assembled suction nozzle first obliquely clamps one end of the positioning sheet into a slot of the key, and rotatably clamps the other end of the positioning sheet into the other slot of the key.

4. The automatic assembly machine for mobile phone keys as claimed in claim 1, characterized in that: The tray loading device includes a full bin, an empty bin, a material rack, a supporting mechanism and a transfer mechanism. The full bin and the empty bin are arranged side by side, and both have the material rack slidably arranged in the left-right direction and the supporting mechanism liftably arranged in the up-down direction. The material rack in the full bin is used for stacking trays full of positioning plates, and the material rack in the empty bin is used for stacking empty trays. The supporting mechanism in the full bin is used for pushing the stacked trays upward one by one, and the supporting mechanism in the empty bin is used for receiving the empty trays and supporting and stacking them downward. The transfer mechanism is mounted on the top side ends of the full bin and the empty bin, and is used for transferring the empty trays after taking material from the top of the full bin to the empty bin.

5. The automatic assembly machine for mobile phone keys as claimed in claim 1, characterized in that: The flyer feeding device includes at least one feeding unit, which includes a carrier plate, a pushing mechanism, a pushing mechanism and a positioning mechanism. The magazine is detachably arranged on the relatively left end of the carrier plate, and has at least two magazines that are equidistantly arranged in the front-to-back direction and whose discharge ports are both facing upward. The pushing mechanism is arranged at the relatively left lower end of the carrier plate, and has a pushing part that pushes the balancing hooks stacked in each of the magazines toward the discharge port one by one through a lifting action. The pushing mechanism is arranged at the relatively right end of the carrier plate, and has a pushing part that pushes the balancing hook at the discharge port of the magazine toward the direction of the positioning mechanism through left and right movement. The positioning mechanism is arranged at the upper side end of the magazine, and has a receiving plate that travels back and forth between the magazines to receive the balancing hook pushed by the pushing part, and also has a pressing block that presses and positions the balancing hook on the receiving plate through a lifting action.

6. The automatic assembly machine for mobile phone keys as claimed in claim 5, characterized in that: The carrier plate is slidably arranged on a carrier platform along the left and right directions, the pushing part is arranged in a one-to-one correspondence with the magazine, and a movable block is provided at the bottom of each magazine. The movable block moves linearly along the up and down directions under the drive of the pushing part to push the balancing hooks stacked in the magazine toward the discharge port one by one.

7. The automatic mobile phone keypad assembly machine according to claim 1, characterized in that: The first robot also includes a six-axis robotic arm and a clamping cylinder connected to the output end of the six-axis robotic arm. The two clamps of the assembled clamping jaws are symmetrically connected to the output end of the clamping cylinder, and a groove matching the shape of the balance hook is provided on the bottom wall or outer side wall of each clamp.

8. The automatic mobile phone keypad assembly machine as claimed in claim 7, characterized in that: The first robot also includes an auxiliary component, which is telescopically connected to the clamping cylinder up and down through an elastic component and has two abutment parts arranged at the opposite rear ends of the two clamps in a one-to-one correspondence.

9. The automatic mobile phone keypad assembly machine according to claim 1, characterized in that: The feeding suction nozzle and the assembly suction nozzle are vertically connected to the output end of the six-axis mechanical arm of the second robot. The suction hole of the feeding suction nozzle is arranged at its bottom end, and the suction hole of the assembly suction nozzle is arranged at its side end.

10. The automatic assembly machine for mobile phone keys as claimed in claim 9, characterized in that: The second robot also includes a clamping cylinder and a clamping member connected to the output end of the six-axis robot arm. The output end of the clamping cylinder is connected to at least one of the modular suction nozzle and the clamping member, and is used to drive at least one connected thereto to make a linear motion towards or away from the other, so as to fix the positioning plate between the two.

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