Automatic rubber plug mounting mechanism for mobile phone rear cover

Abstract

An automatic rubber plug assembling mechanism for a mobile phone rear cover comprises a product positioning module, a rubber plug feeding module, a rubber plug pre-assembling module, a rubber plug assembling module and a main controller. The product positioning module comprises a turntable, a carrier and a rotary driving mechanism; the rubber plug feeding module comprises a storage bin, a flexible vibration disc for receiving incoming materials of the storage bin, a rubber plug grabbing visual module for collecting images of rubber plugs in the flexible vibration disc, a flexible vibration material taking assembly for grabbing the rubber plugs from the flexible vibration disc and adjusting the postures of the rubber plugs, and a water tank assembly for receiving incoming materials of the flexible vibration material taking assembly and infiltrating the rubber plugs. The water tank assembly comprises a Y-axis synchronous belt module, a water tank and an X-axis synchronous belt module; the rubber plug pre-assembling module comprises a second grabbing piece, a second R-axis rotating mechanism, a second XYZ three-axis driving mechanism, a lower visual positioning assembly, a horizontal driving mechanism and an upper visual positioning assembly. The rubber plug assembling module comprises a pressing head, a Z-axis servo lead screw module, a pressure sensor and a distance sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone back cover processing, in particular to an automatic rubber plugging mechanism for a mobile phone back cover. Background Art

[0002] During the processing and assembly of the back cover of a mobile phone, since there are multiple holes on the back cover of the mobile phone, such as the camera hole, in order to ensure the sealing of the holes, it is often necessary to cover the holes with plugs to meet the appearance and sealing requirements of the back cover of the mobile phone. At present, the industry mainly adopts manual methods to cover the back cover of the mobile phone with plugs. There are 2-3 holes on the back cover of the mobile phone, and the hole sizes vary. Therefore, the plug needs to be pressed in a specific direction (such as from a specific end of the plug) to avoid the occurrence of product fragmentation problems in subsequent processes caused by the forced pressing of the plug. In order to ensure the accurate pressing of the plug, the upper surface of the plug is often provided with identification features. When covering the plug, the worker distinguishes the identification features so that the plug can be pressed into the hole in the correct direction. However, due to the small size of the plug, the worker is prone to visual fatigue when distinguishing the identification features of the plug, which causes the plug to be misidentified and the plug to be pressed in the opposite direction, thereby resulting in defective products. In addition, when manual plugging is used, the labor cost is high, and as the working time increases, the workers are easily fatigued, which reduces the efficiency of the mobile phone back cover plugging operation, thereby affecting the production efficiency of the mobile phone back cover. Utility Model Content

[0003] Based on this, it is necessary to provide an automatic rubber plugging mechanism for the back cover of a mobile phone with high operating efficiency, low operating cost and improved product yield to address the above shortcomings.

[0004] An automatic rubber plug installation mechanism for a mobile phone back cover, comprising a product positioning module, a rubber plug feeding module, a rubber plug pre-assembly module, a rubber plug assembly module and a main controller;

[0005] The product positioning module includes a turntable, a carrier fixed on the turntable and used to clamp the product, and a rotation drive mechanism for driving the turntable to rotate;

[0006] The rubber plug feeding module includes a storage bin for storing rubber plugs, a flexible vibration plate located at the discharge end of the storage bin and receiving the material from the storage bin, a rubber plug grabbing vision module suspended above the flexible vibration plate and collecting the image of the rubber plug in the flexible vibration plate, a soft vibration material taking component for grabbing the rubber plug from the flexible vibration plate and adjusting the posture of the rubber plug, and a water tank component for receiving the material from the soft vibration material taking component and soaking the rubber plug; the soft vibration material taking component includes a first portion suspended above the flexible vibration plate and used to grab the rubber plug in the flexible vibration plate a gripping member, a first R-axis rotation mechanism drivingly connected to the first gripping member to drive the first gripping member to rotate in a horizontal plane, and a first XYZ three-axis drive mechanism drivingly connected to the first R-axis rotation mechanism to drive the first R-axis rotation mechanism and the first gripping member to move in three-dimensional space; a water tank assembly including a Y-axis synchronous belt module for receiving incoming materials from the first gripping member, a water tank containing clean water and for receiving outgoing materials from the Y-axis synchronous belt module, and an X-axis synchronous belt module for driving the water tank to move along the X-axis direction;

[0007] The rubber plug preassembly module includes a second gripper for gripping the rubber plug in the water tank and transferring the rubber plug to the product hole position in the carrier, a second R-axis rotation mechanism drivingly connected to the second gripper to drive the second gripper to rotate in a horizontal plane, a second XYZ three-axis drive mechanism drivingly connected to the second R-axis rotation mechanism to drive the second R-axis rotation mechanism and the second gripper to move in three-dimensional space, a lower visual positioning assembly located beside the second gripper and capturing an image of the rubber plug on the second gripper, a horizontal drive mechanism for driving the second XYZ three-axis drive mechanism to move so that the second gripper approaches or moves away from the lower visual positioning assembly, and an upper visual positioning assembly for capturing an image of the product in the carrier to identify the position of the hole on the product;

[0008] The rubber plug assembly module includes a pressing head for pressing the product and the rubber plug, a Z-axis servo screw module for driving the pressing head to rise and fall, a pressure sensor for detecting the extrusion force at the pressing head, and a distance sensor for detecting the distance between the pressing head and the product to be processed;

[0009] The main controller is electrically connected to the rotation drive mechanism, the drive mechanism of the flexible vibration disk, the plug grasping vision module, the first R-axis rotation mechanism, the first XYZ three-axis drive mechanism, the Y-axis synchronous belt module, the X-axis synchronous belt module, the second R-axis rotation mechanism, the second XYZ three-axis drive mechanism, the lower vision positioning component, the horizontal drive mechanism, the upper vision positioning component, the Z-axis servo screw module, the pressure sensor and the distance sensor.

[0010] In one embodiment, a plurality of operating areas are evenly spaced along the circumferential direction of the turntable, each operating area includes a plurality of assembly windows arranged side by side and passing through the upper and lower surfaces of the turntable, and the upper surface of the turntable is provided with a plurality of the carriers corresponding one-to-one to each assembly window.

[0011] In one embodiment, the plug grabbing vision module is a CCD camera electrically connected to a main controller.

[0012] In one embodiment, the first gripping member is a vacuum nozzle, the second gripping member is a plastic sheet with a smooth surface, and the pressing head is a push block.

[0013] In one embodiment, the first R-axis rotation mechanism is a servo motor; the first XYZ three-axis drive mechanism includes two first X-axis linear modules arranged opposite to each other and extending along the X-axis direction, a first Y-axis linear module mounted on the two first X-axis linear modules and sliding on the first X-axis linear modules along the X-axis direction, and a Z-axis synchronous belt module arranged on the first Y-axis linear module and sliding along the Y-axis direction.

[0014] In one embodiment, a plurality of partition grooves are arranged side by side in the water tank, and the bottoms of the partition grooves are connected.

[0015] In one embodiment, the second R-axis rotation mechanism is a servo motor; the second XYZ three-axis drive mechanism includes a second Y-axis linear module extending along the Y-axis direction, a plurality of second X-axis linear modules slidably arranged side by side on the second Y-axis linear module and capable of sliding along the X-axis direction, and a plurality of Z-axis cylinder modules slidably arranged one-to-one on each second X-axis linear module and capable of sliding simultaneously along the Y-axis direction.

[0016] In one embodiment, the lower visual positioning assembly includes a first camera located below the second gripping member, a first lens fixed on the top of the first camera, a first light source arranged above the first lens, and a third Y-axis linear module for driving the first camera to move along the Y-axis direction.

[0017] In one embodiment, the upper visual positioning assembly includes a second camera located above the turntable, a second lens fixed to the bottom of the second camera, a second light source arranged below the second lens, and a fourth Y-axis linear module for driving the second camera to move along the Y-axis direction.

[0018] In one embodiment, the automatic plug loading mechanism further includes a third X-axis linear module, and a plurality of the Z-axis servo screw modules are slidably arranged side by side on the third X-axis linear module.

[0019] The automatic plugging mechanism for mobile phone back covers of the present invention is implemented. By combining the plug grabbing visual module with the soft vibration material picking component, the plugs can be turned when the reverse arrangement of the plugs is identified, so that the plugs entering the water tank are arranged in the same direction, avoiding product damage caused by the reverse pressing of the plugs when the plugs are installed, and reducing the product defective rate. It replaces manual plug installation, reduces operating costs, and improves the efficiency of plug installation on mobile phone back covers, thereby improving the production efficiency of mobile phone back covers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of an automatic plug-loading mechanism in one embodiment of the present invention;

[0021] Figure 2 This is a structural diagram of a product positioning module in one embodiment of the present utility model;

[0022] Figure 3 This is a structural diagram of a rubber plug feeding module in one embodiment of the present invention;

[0023] Figure 4 This is a structural diagram of a soft vibration material taking component in one embodiment of the present utility model;

[0024] Figure 5 This is a structural diagram of a water tank assembly in one embodiment of the present utility model;

[0025] Figure 6 This is a partial structural diagram of a rubber plug preassembly module in one embodiment of the present invention;

[0026] Figure 7 Schematic diagram of the structure of a rubber plug assembly module in one embodiment of the present invention. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] The utility model discloses an automatic rubber plugging mechanism for a mobile phone back cover, which replaces the manual rubber plugging operation, improves the efficiency of plugging the mobile phone back cover, and reduces the operation cost; by visually inspecting and adjusting the posture of the rubber plug, it is ensured that the rubber plug can be inserted into the hole of the mobile phone back cover in the correct direction, avoiding the problem of product defects caused by the rubber plug being installed upside down.

[0029] For details, please combine Figure 1-7 The automatic plug loading mechanism 10 of this embodiment includes a product positioning module 100, a plug feeding module 200, a plug pre-assembly module 300, a plug assembly module 400, and a main controller (not shown). The product positioning module 100 is used to receive and process products and provide a place for assembling products and plugs. The product positioning module 100 includes a turntable 110, a carrier 120 fixed to the turntable 110 and used to clamp products, and a rotary drive mechanism 130 for driving the turntable 110 to rotate. In this embodiment, the turntable 110 has a pre-loading position and a final pressing position above it, which are arranged offset from the center of the turntable 110. The final pressing position is located next to the pre-loading position. The rotary drive mechanism 130 drives the turntable 110 to rotate, so that the carrier 120 on the turntable 110 rotates to the pre-loading position and the final pressing position in sequence, so that the pre-loading operation and the final pressing operation of the plug can be performed in sequence. The plug loading module 200 is located next to the turntable 110 and is used to transport the plugs from a distance to the turntable 110. In this embodiment, the plug loading module 200 includes a storage bin 210 for storing the plugs, a flexible vibration plate 220 located at the discharge end of the storage bin 210 and receiving the material from the storage bin 210, a plug grabbing vision module 230 suspended above the flexible vibration plate 220 and capturing images of the plugs in the flexible vibration plate 220, a soft vibration picking assembly 240 for grabbing the plugs from the flexible vibration plate 220 and adjusting the posture of the plugs, and a water tank assembly 250 for receiving the material from the soft vibration picking assembly 240 and soaking the plugs. The plug-grabbing vision module 230 is used to detect the position of the plug and identify its front and back sides. The soft vibration material extraction assembly 240 is used to deliver the plug from the flexible vibration plate 220 into the water tank assembly 250 and adjust the plug's posture based on the front and back information detected by the plug-grabbing vision module 230, so that the plug is always delivered to the water tank assembly 250 in the same direction. After the plug is delivered to the water tank assembly 250, it is soaked and wetted in the water tank assembly 250, making it easier for the plug pre-assembly module 300 to grasp the plug, prevent the plug from falling off the plug pre-assembly module 300, and reduce the difficulty of grabbing the plug.

[0030] In this embodiment, the soft vibration material picking component 240 includes a first gripping member 241 suspended above the flexible vibration disk 220 and used to grip the rubber plug in the flexible vibration disk 220, a first R-axis rotation mechanism 242 driven by the first gripping member 241 to drive the first gripping member 241 to rotate in a horizontal plane, and a first XYZ three-axis drive mechanism 243 driven by the first R-axis rotation mechanism 242 to drive the first R-axis rotation mechanism 242 and the first gripping member 241 to move in three-dimensional space; the water tank assembly 250 includes a Y-axis synchronous belt module 251 for receiving the material from the first gripping member 241, a water tank 252 that stores clean water and is used to receive the material discharged from the Y-axis synchronous belt module 251, and an X-axis synchronous belt module 253 for driving the water tank 252 to move along the X-axis direction. The plug pre-assembly module 300 is located above the turntable 110 and corresponds to the pre-installation operation position, and is used to pre-install the plugs delivered by the plug feeding module 200 into the corresponding holes of the product on the turntable 110. The plug pre-assembly module 300 includes a second gripping member 310 for gripping the plug in the water tank 252 and transferring the plug to the product hole position in the carrier 120, a second R-axis rotation mechanism 320 driven by the second gripping member 310 to drive the second gripping member 310 to rotate in the horizontal plane, a second XYZ three-axis drive mechanism 330 driven by the second R-axis rotation mechanism 320 to drive the second R-axis rotation mechanism 320 and the second gripping member 310 to move in three-dimensional space, a lower visual positioning component 340 located next to the second gripping member 310 and capturing the image of the plug on the second gripping member 310, a horizontal drive mechanism 350 for driving the second XYZ three-axis drive mechanism 330 to move the second gripping member 310 close to or away from the lower visual positioning component 340, and an upper visual positioning component 360 for capturing the product image in the carrier 120 to identify the hole position on the product. The plug assembly module 400, located above the turntable 110 and corresponding to the final pressing position, is used to further tighten the plug pre-installed in the product hole to ensure the stability of the plug's installation. The plug assembly module 400 includes a pressing head 410 for pressing the product and the plug together, a Z-axis servo screw module 420 for driving the pressing head 410 up and down, a pressure sensor 430 for detecting the squeezing force at the pressing head 410, and a distance sensor 440 for detecting the distance between the pressing head 410 and the product being processed. The main controller is used to control the operation of the entire machine. The main controller can be a single-chip microcomputer or a PLC controller. In this embodiment, the main controller is electrically connected to the rotation drive mechanism 130, the drive mechanism of the flexible vibration disk 220, the plug grasping vision module 230, the first R-axis rotation mechanism 242, the first XYZ three-axis drive mechanism 243, the Y-axis synchronous belt module 251, the X-axis synchronous belt module 253, the second R-axis rotation mechanism 320, the second XYZ three-axis drive mechanism 330, the lower visual positioning component 340, the horizontal drive mechanism 350, the upper visual positioning component 360, the Z-axis servo screw module 420, the pressure sensor 430 and the distance sensor 440.It should be noted that in this solution, the X-axis direction is set as the width direction of the water tank, the Y-axis direction is set as the length direction of the water tank, and the Z-axis direction is set as the vertical direction (i.e. the height direction of the water tank). The subsequent identification of the X-axis, Y-axis and Z-axis directions shall refer to this explanation.

[0031] During the operation of the automatic plugging mechanism 10, the product to be processed (the back cover of the mobile phone) is first loaded into the carrier 120 on the turntable 110, and the rotary drive mechanism 130 drives the turntable 110 to rotate, so that the carrier 120 loaded with the product stays above the pre-loading operation position, and the plug is loaded into the storage bin 210 at the same time. The plugs in the storage bin 210 fall into the flexible vibrating disk 220 and, under the vibration of the flexible vibrating disk 220, are spread and arranged within the flexible vibrating disk 220. The plug-grabbing vision module 230 detects the plug's position at the output end of the flexible vibrating disk 220 and identifies the front and back sides of the plug. The plug's position and front and back information are then transmitted to the main controller. The main controller controls the operation of the first XYZ three-axis drive mechanism 243 alone, or simultaneously controls the operation of the first XYZ three-axis drive mechanism 243 and the first R-axis rotation mechanism 242, so that the first gripper 241 directly delivers the forward-facing plug to the Y-axis synchronous belt module 251, or causes the first gripper 241 to flip the reverse-facing plug so that, after adjusting its position, it is delivered to the Y-axis synchronous belt module 251 in a forward-facing position. Subsequently, driven by the Y-axis synchronous belt module 251, the plug falls into the water tank 252 and becomes soaked in the water tank 252. Next, the horizontal drive mechanism 350 drives the second XYZ three-axis drive mechanism 330, the second R-axis rotation mechanism 320 and the second gripping member 310 to approach the water tank 252, and the second XYZ three-axis drive mechanism 330 controls the second gripping member 310 to grab the rubber plug from the water tank 252. Subsequently, the horizontal drive mechanism 350 drives the second XYZ three-axis drive mechanism 330 and the second R-axis rotation mechanism 320 to move, so that the second gripping member 310 holding the rubber plug approaches the lower visual positioning component 340, and the lower visual positioning component 340 collects the second rubber plug. The image and position information of the rubber plug on the gripping member 310, at the same time, the upper visual positioning component 360 collects the hole position information of the product in the carrier 120 on the turntable 110 in real time and sends it to the main controller. The main controller controls the second XYZ three-axis drive mechanism 330 and the second R-axis rotation mechanism 320 to work according to the information fed back by the upper visual positioning component 360 and the lower visual positioning component 340, so as to adjust the position and angle of the rubber plug, so that the rubber plug on the second gripping member 310 is placed corresponding to the hole position of the product on the carrier 120, thereby realizing the pre-installation of the rubber plug. After pre-installation is completed, the rotary drive mechanism 130 drives the turntable 110 to rotate, so that the carrier 120 loaded with the pre-installed plug product stays above the final pressing operation position, and then the controller controls the Z-axis servo screw module 420 to work, so that the pressure head 410 presses the plug into the hole of the product. At the same time, the pressure sensor 430 detects the pressure at the pressure head 410 to prevent the plug and the product hole from being damaged by overpressure. The distance sensor 440 detects whether the plug is pressed into place (detects the distance between the plug and the product) to ensure the yield rate of the product plugging operation.

[0032] In one embodiment, the turntable 110 is cross-shaped, with multiple operating areas evenly spaced along its circumference. Each operating area includes multiple assembly windows arranged side by side and extending through the upper and lower surfaces of the turntable 110. The upper surface of the turntable 110 is provided with multiple carriers 120 corresponding to each assembly window. Accordingly, the plug pre-assembly module 300 is provided with multiple second gripping members 310 corresponding to each carrier 120. The automatic plugging mechanism 10 also includes multiple plug assembly modules 400 arranged side by side and corresponding to each carrier 120. This allows for the simultaneous plugging of multiple products in a single batch, significantly improving the efficiency of plugging mobile phone back cover applications. Furthermore, the rotation drive mechanism 130 is a servo motor.

[0033] In one embodiment, the discharge end of the storage bin 210 is provided with a downwardly inclined slope so that the plug in the storage bin 210 can slide along the slope into the flexible vibration disk 220 under the action of its gravity. The flexible vibration disk 220 includes a disk body and a driving mechanism fixed to the outer wall of the disk body. The driving mechanism can be a vibrator, which drives the disk body and the plug in the disk body to vibrate through the operation of the vibrator, so that the plug moves and turns over in the disk body. In this embodiment, the plug grasping vision module 230 is a CCD camera electrically connected to the main controller. The CCD (Charge coupled Device) camera is also called a charge coupled device or CCD image sensor, which can convert optical images into digital signals to collect image signals of the plug in the flexible vibration disk 220 (including plug position information and front and back information), so that the main controller can control the operation of the first R-axis rotation mechanism 242 according to the information transmitted by the plug grasping vision module 230.

[0034] In one embodiment, the first R-axis rotation mechanism 242 is a servo motor. The first X, Y, and Z triaxial drive mechanism 243 includes two first X-axis linear modules 2431 arranged opposite each other and extending along the X-axis direction, a first Y-axis linear module 2432 mounted astride the two first X-axis linear modules 2431 and sliding along the X-axis direction on the first X-axis linear module 2431, and a Z-axis synchronous belt module 2433 mounted on the first Y-axis linear module 2432 and sliding along the Y-axis direction. In this embodiment, the first gripper 241 is a vacuum nozzle that uses negative pressure to remove the rubber plug from the flexible vibrating plate 220. Furthermore, in this embodiment, the first X-axis linear module 2431 and the first Y-axis linear module 2432 have the same structure, both being linear modules or linear slides. In this embodiment, the first X-axis linear module 2431 and the first Y-axis linear module 2432 can be either synchronous belt-type linear modules, ball screw-type linear modules, or linear motor-type linear modules. The Z-axis synchronous belt module 2433 is a synchronous belt linear module used to achieve the lifting and lowering of the first gripping member 241. Of course, in other embodiments, the Z-axis synchronous belt module 2433 can be replaced with a ball screw linear module or a linear motor linear module, or the Z-axis synchronous belt module 2433 can be replaced with a cylinder, which will not be repeated here.

[0035] In this embodiment, a plurality of partition grooves 2521 are arranged side by side in the water tank 252, and the bottoms of the partition grooves 2521 are connected. Preferably, the water tank 252 is provided with 2 rows and 5 columns, totaling 10 partition grooves 2521. In this way, 10 rubber plugs can be loaded into the water tank 252 at a time, so that the rubber plug pre-assembly module 300 can grab rubber plugs from the water tank 252 in batches, thereby improving the efficiency of the operation of adding rubber plugs to the back cover of the mobile phone.

[0036] In one embodiment, the second R-axis rotation mechanism 320 is a servo motor; the second XYZ triaxial drive mechanism 330 includes a second Y-axis linear module 331 extending along the Y-axis, a plurality of second X-axis linear modules 332 slidably mounted side by side on the second Y-axis linear module 311 and capable of sliding along the X-axis, and a plurality of Z-axis cylinder modules 333 slidably mounted one-to-one on each of the second X-axis linear modules 332 and capable of sliding simultaneously along the Y-axis. In this embodiment, the second gripping member 310 is a smooth plastic sheet. Thus, by inserting the rubber plug into the water tank 252, the rubber plug is soaked with the clean water in the water tank 252. When the second gripping member 310 contacts the rubber plug, the surface of the second gripping member 310 bonds with the water film on the rubber plug surface, causing the rubber plug to adhere to the second gripping member 310, thereby improving the stability and reliability of the rubber plug grip. In this embodiment, the second X-axis linear module 332 and the second Y-axis linear module 331 have the same structure, both being linear modules or linear slides. In this embodiment, the second X-axis linear module 332 and the second Y-axis linear module 331 can be a synchronous belt linear module, a ball screw linear module, or a linear motor linear module. The Z-axis cylinder module 333 is a pneumatic cylinder used to achieve the raising and lowering of the second gripper 310. Of course, in other embodiments, the Z-axis cylinder module 333 can be replaced with a synchronous belt linear module, a ball screw linear module, or a linear motor linear module, which will not be described in detail here.

[0037] In one embodiment, the lower vision positioning assembly 340 includes a first camera 341 located below the second gripper 310, a first lens 342 fixed to the top of the first camera 341, a first light source 343 disposed above the first lens 342, and a third Y-axis linear module 344 for driving the first camera 341 along the Y-axis. Specifically, the lower vision positioning assembly 340 is disposed in the rubber plug preassembly module 300 so that the first camera 341 can capture images of the rubber plugs from below the second gripper 310. The upper vision positioning assembly 360 includes a second camera 361 located above the turntable 110, a second lens 362 fixed to the bottom of the second camera 361, a second light source 363 disposed below the second lens 362, and a fourth Y-axis linear module 364 for driving the second camera 361 along the Y-axis. Specifically, the upper vision positioning assembly 360 is disposed above the turntable 110 so that the second camera 361 can capture images of the products on the carrier 120 from above the turntable 110.

[0038] The Z-axis servo screw module 420 includes a motor, a screw connected to the motor output shaft, a nut rotatably sleeved on the screw, and the pressure head 410 is fixed on the nut. Among them, the motor is a servo motor. When the motor works under the control of the main controller, it will drive the screw to rotate, so that the nut rotatably sleeved on the screw drives the pressure head 410 to move along the length direction of the screw to achieve the lifting and lowering of the pressure head 410. In this embodiment, the pressure head 410 is driven to move by the Z-axis servo screw module 420, and the lifting height of the pressure head 410 can be accurately controlled to control the depth of the rubber plug pressed into the product hole. Furthermore, in this embodiment, the pressure head 410 is a push block to avoid deformation of the pressure head 410 and ensure the reliability of the pressure head 410 in squeezing the rubber plug. The automatic plugging mechanism 10 also includes a third X-axis linear module 500, on which a plurality of Z-axis servo screw modules 420 are slidingly arranged side by side. In this way, the main controller can control the operation of the third X-axis linear module 500 and adjust the plurality of Z-axis servo screw modules 420 to move simultaneously along the X-axis direction, thereby adjusting the horizontal position of the Z-axis servo screw module 420 relative to the turntable 110, so that each pressing head 410 is aligned one by one with each product hole position on the turntable 110.

[0039] The above-mentioned automatic plugging mechanism 10 for the back cover of a mobile phone is combined with a plug grabbing visual module 230 and a soft vibration material picking component 240. It can turn the plugs when identifying the reverse arrangement of the plugs, so that the plugs entering the water tank are arranged in the same direction, avoiding product damage caused by the reverse pressing of the plugs when the plugs are installed, thereby reducing the product defective rate; it replaces manual plug installation, reduces operating costs, and improves the efficiency of plug installation on the back cover of the mobile phone, thereby improving the production efficiency of the back cover of the mobile phone.

[0040] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An automatic plugging mechanism for a mobile phone back cover, characterized in that: Including product positioning module, plug feeding module, plug pre-assembly module, plug assembly module and main controller; The product positioning module includes a turntable, a carrier fixed on the turntable and used to clamp the product, and a rotation drive mechanism for driving the turntable to rotate; The rubber plug feeding module includes a storage bin for storing rubber plugs, a flexible vibration plate located at the discharge end of the storage bin and receiving the material from the storage bin, a rubber plug grabbing vision module suspended above the flexible vibration plate and collecting the image of the rubber plug in the flexible vibration plate, a soft vibration material taking component for grabbing the rubber plug from the flexible vibration plate and adjusting the posture of the rubber plug, and a water tank component for receiving the material from the soft vibration material taking component and soaking the rubber plug; the soft vibration material taking component includes a first portion suspended above the flexible vibration plate and used to grab the rubber plug in the flexible vibration plate a gripping member, a first R-axis rotation mechanism drivingly connected to the first gripping member to drive the first gripping member to rotate in a horizontal plane, and a first XYZ three-axis drive mechanism drivingly connected to the first R-axis rotation mechanism to drive the first R-axis rotation mechanism and the first gripping member to move in three-dimensional space; a water tank assembly including a Y-axis synchronous belt module for receiving incoming materials from the first gripping member, a water tank containing clean water and for receiving outgoing materials from the Y-axis synchronous belt module, and an X-axis synchronous belt module for driving the water tank to move along the X-axis direction; The rubber plug preassembly module includes a second gripper for gripping the rubber plug in the water tank and transferring the rubber plug to the product hole position in the carrier, a second R-axis rotation mechanism drivingly connected to the second gripper to drive the second gripper to rotate in a horizontal plane, a second XYZ three-axis drive mechanism drivingly connected to the second R-axis rotation mechanism to drive the second R-axis rotation mechanism and the second gripper to move in three-dimensional space, a lower visual positioning assembly located beside the second gripper and capturing an image of the rubber plug on the second gripper, a horizontal drive mechanism for driving the second XYZ three-axis drive mechanism to move so that the second gripper approaches or moves away from the lower visual positioning assembly, and an upper visual positioning assembly for capturing an image of the product in the carrier to identify the position of the hole on the product; The rubber plug assembly module includes a pressing head for pressing the product and the rubber plug, a Z-axis servo screw module for driving the pressing head to rise and fall, a pressure sensor for detecting the extrusion force at the pressing head, and a distance sensor for detecting the distance between the pressing head and the product to be processed; The main controller is electrically connected to the rotation drive mechanism, the drive mechanism of the flexible vibration disk, the plug grasping vision module, the first R-axis rotation mechanism, the first XYZ three-axis drive mechanism, the Y-axis synchronous belt module, the X-axis synchronous belt module, the second R-axis rotation mechanism, the second XYZ three-axis drive mechanism, the lower vision positioning component, the horizontal drive mechanism, the upper vision positioning component, the Z-axis servo screw module, the pressure sensor and the distance sensor.

2. The automatic plugging mechanism according to claim 1, characterized in that: A plurality of operating areas are evenly spaced along the circumferential direction of the turntable. Each operating area includes a plurality of assembly windows arranged side by side and passing through the upper and lower surfaces of the turntable. The upper surface of the turntable is provided with a plurality of the carriers corresponding to each assembly window one by one.

3. The automatic plug-loading mechanism according to claim 1, characterized in that: The plug grabbing visual module is a CCD camera electrically connected to the main controller.

4. The automatic plugging mechanism according to claim 1, characterized in that: The first gripping member is a vacuum suction nozzle, the second gripping member is a plastic sheet with a smooth surface, and the pressing head is a push block.

5. The automatic plug-loading mechanism according to claim 1, characterized in that: The first R-axis rotation mechanism is a servo motor; the first XYZ three-axis drive mechanism includes two first X-axis linear modules arranged opposite to each other and extending along the X-axis direction, a first Y-axis linear module mounted on the two first X-axis linear modules and sliding along the X-axis direction on the first X-axis linear module, and a Z-axis synchronous belt module arranged on the first Y-axis linear module and sliding along the Y-axis direction.

6. The automatic plug-loading mechanism according to claim 1, characterized in that: A plurality of separation grooves are arranged side by side in the water tank, and the bottoms of the separation grooves are connected.

7. The automatic plug-loading mechanism according to claim 1, characterized in that: The second R-axis rotation mechanism is a servo motor; the second XYZ three-axis drive mechanism includes a second Y-axis linear module extending along the Y-axis direction, multiple second X-axis linear modules slidingly arranged side by side on the second Y-axis linear module and capable of sliding along the X-axis direction, and multiple Z-axis cylinder modules slidingly arranged one by one on each second X-axis linear module and capable of sliding simultaneously along the Y-axis direction.

8. The automatic plug-loading mechanism according to claim 1, characterized in that: The lower visual positioning assembly includes a first camera located below the second gripping member, a first lens fixed on the top of the first camera, a first light source arranged above the first lens, and a third Y-axis linear module for driving the first camera to move along the Y-axis direction.

9. The automatic plug-loading mechanism according to claim 1, characterized in that: The upper visual positioning assembly includes a second camera located above the turntable, a second lens fixed to the bottom of the second camera, a second light source arranged below the second lens, and a fourth Y-axis linear module for driving the second camera to move along the Y-axis direction.

10. The automatic plug-loading mechanism according to claim 1, characterized in that: The automatic plugging mechanism further comprises a third X-axis linear module, on which a plurality of Z-axis servo screw modules are slidably arranged side by side.

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