Box cover assembly process and assembly equipment of junction box

Abstract

The invention relates to a box cover assembly process and assembly equipment of a junction box. The box cover assembly process comprises the following steps: S1, feeding a box cover; s2, assembly feeding is carried out; and S3, assembling the buckling cover. On one hand, in the box cover feeding process, the selection rate of material taking is increased based on shaking, scattering and throwing turning of the box covers, then the error rate of material taking is reduced, the feeding efficiency is improved, meanwhile, in the checking and aligning process, the box covers are positioned on the transfer platform in the mode that the front faces and the back faces of the box covers are kept aligned, and the interruption rate of feeding is reduced; on the other hand, based on curing degree detection of the sealing glue layer, gluing and buckling are carried out in the set curing degree, the light source is used for assistance, the box cover assembling quality is improved, and the glue overflowing rate is also reduced.

Description

Technical Field

[0001] The invention belongs to the field of photovoltaic component assembly, and in particular relates to a box cover assembly process and assembly equipment for a junction box. Background Art

[0002] The junction box of a photovoltaic module basically includes a box body and a box cover, wherein the box body is fixed to the module by gluing. After the internal components and busbars of the junction box are connected and assembled, the box body is closed by gluing and snap-fitting. The opening formed by the box body is basically rectangular. Therefore, the box cover used is in the shape of a rectangular module. In the assembly process, the box cover has not only long and short sides, but also front and back sides. Therefore, in the automatic assembly process, the following technical defects often exist:

[0003] 1) In the automatic feeding of the box cover, since there is a probability of stacking or relative jamming (such as two jams together) of the box cover itself during the transmission process, there is still a probability of multiple suction when sucking the material, which not only increases the probability of damaging the junction box or internal components during subsequent assembly, but also greatly increases the loss of the box cover; at the same time, since the layout of the box cover in the material box is disorderly, continuous transmission is adopted for continuous feeding. However, during the adsorption process, it cannot be guaranteed that each adsorption position point is in the middle. Therefore, even if the requirements of the front and back sides and the long and short sides are met, due to the position deviation of the adsorption point, it is impossible to effectively transfer and reorganize. Then, the box cover needs to be sent back to the material box for re-collection, that is, the feeding is interrupted, thereby reducing the assembly efficiency. In addition, once there are multiple junction boxes for the same photovoltaic module, the material needs to be sucked at one time, which greatly increases the probability that the material cannot be reorganized, and the electrostatic adsorption between the box covers themselves also increases the difficulty of retrieving.

[0004] 2) In the automatic assembly of the box cover, glue needs to be applied on the surface of the box body, and the box cover can be assembled when the glue is close to the solidified state. Otherwise, the glue will overflow after assembly due to the glue not drying, thus affecting the gluing quality. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a new assembly process for a junction box cover.

[0006] At the same time, the invention also relates to a box cover assembling device for a junction box.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solution: a junction box cover assembly process, which comprises the following steps:

[0008] S1. Loading of box cover

[0009] First, the box lids are spread out on the receiving box by vibration shaking. Second, the box lids with similar orientations and the same front are adsorbed one by one by negative pressure based on vision, and the adsorption position of the box lids is verified and multiple box lids with the same orientation are adjusted for negative pressure material collection. Finally, the taken box lids are transferred to the transfer platform for alignment and correction of multiple box lids.

[0010] S2. Component loading

[0011] The assembly with the box installed is translated into the assembly center, with the surface of the box facing upward and coated with a sealant layer, and a glue detection probe is inserted into the sealant layer to obtain the curing degree of the sealant layer, and the glue detection probe is reset at the set curing degree;

[0012] S3, buckle cover assembly

[0013] A robot is used to absorb multiple box covers on the transfer platform, and the box covers are inserted into the box body one by one from one end or one side, and then the other end or the other side is buckled and installed on the surface of the cover body. At the same time, the box cover is flattened and glued to the sealant layer with the assistance of a curing light source.

[0014] Preferably, in step S1, the box covers scattered on the receiving box are flipped over based on vibration to reverse the front and back sides and directions of the box covers. The flipping increases the suction accuracy of the box covers selected by the negative pressure manipulator and improves the feeding efficiency.

[0015] According to a specific implementation and preferred aspect of the present invention, the vibration formed is a multi-angle overturning in the up and down directions; this overturning is more conducive to the tumbling of the box cover.

[0016] In some specific embodiments, the brush on the top of the receiving box is used to brush the stacked or redundant box covers on the negative pressure picker into the receiving box, thereby reducing the error rate of box cover feeding. At the same time, the negative pressure picker sends the NG box covers to the waste receiving box based on vision.

[0017] According to another specific implementation and preferred aspect of the present invention, in step S1, the verification is based on the rotation of the adsorption position and the synchronous movement of the adsorption position in the up and down directions, so as to shake off the stacked box covers or remove the box covers with incorrect adsorption positions based on the rotation collision of the adsorbed box covers, and re-adsorb to form multiple box covers with similar adsorption positions, consistent orientations, and consistent front and back faces, and send them to the transfer platform. The verification is formed based on the multi-free movement, which improves the success rate of feeding and reduces the interruption rate.

[0018] Preferably, during the calibration process, every two adjacent adsorption positions move up and down toward each other while rotating, so that the calibration speed is fast and relatively accurate.

[0019] According to another specific implementation and preferred aspect of the present invention, in step S1, the transfer platform is provided with mounting stations corresponding to the box bodies on the assembly, and the box covers after verification are placed in the mounting stations respectively, and then the box covers are calibrated in length and width directions. The need for accurate assembly is met based on the calibration.

[0020] Preferably, the alignment and calibration method used is to use the length and width directions of a box cover as the grid reference, and to synchronize multiple box covers along the length and width directions of the box cover so that the box cover is aligned with the grid reference. Based on the bidirectional grid motion reference, the synchronous push method can be used to synchronize the alignment and calibration of multiple box covers.

[0021] According to another specific implementation and preferred aspect of the present invention, in step S2, the glue detection probes used correspond to the positions of the box body one by one, and the resistance encountered by the insertion of the up and down movement is used to obtain the curing degree information. The specific resistance can be set according to actual conditions.

[0022] In addition, a curing light source is provided directly above each box body, which can quickly cure the box while gluing, thus improving the quality of box cover assembly.

[0023] Preferably, the box cover assembly process further comprises step S4, wherein in step S4, a visual camera and light compensation corresponding one-to-one to the junction box are used to detect whether the installation is qualified.

[0024] Another technical solution of the present invention is: an assembly device adopted in the box cover assembly process of the above-mentioned junction box, which includes a box cover feeding unit, a component feeding unit, a curing degree detection unit of the sealing glue layer on the surface of the box body, an assembly robot, and an assembly auxiliary unit, wherein the box cover feeding unit includes a vibrating hopper, a vibrating material box, a feeding robot and a transfer platform, the vibrating hopper can relatively spread the box cover and transmit it to the outlet by shaking, the vibrating material box forms a multi-angle movement to flip and spread the box cover to the surroundings, the feeding robot sends the verified box cover to the transfer platform for correction based on the XYZ axial movement, the verification is based on the first degree of freedom formed by the rotation of the picking claw, the second degree of freedom formed by the linear movement based on the upper and lower misalignment of the picking claw, and in the synchronous movement of the first degree of freedom and the second degree of freedom, the box covers on each adjacent two picking claws collide with each other, and the movement of the picking claws to shake off the excess or sandwich box covers is used as the basis for verification;

[0025] And / or, the component loading unit includes a conveyor belt forming a conveyor channel and correction components arranged on both sides of the conveyor belt;

[0026] And / or, the curing degree detection unit includes a glue detection probe corresponding to the box body one by one, and a curing power device driving the glue detection probe to rise and fall synchronously;

[0027] And / or, the assembly robot comprises a pick-up head having a suction box cover, and an arm having multiple degrees of freedom for rotation and displacement;

[0028] And / or, the assembly auxiliary unit includes a curing light source located at the top and corresponding one-to-one with the box body, and a visual detection component located at the side and corresponding one-to-one with the box body.

[0029] Specifically, the rotation condition of the claw head of each picking claw around the Z axis is set, the center distance between each adjacent claw heads is equal and is D, the length of each box cover is L, L≤D≤1.8L, wherein the first degree of freedom is formed based on the rotation of the picking claw, and the second degree of freedom is formed based on the linear motion of the upper and lower misalignment of the picking claw, and in the synchronous motion of the first degree of freedom and the second degree of freedom, the verification basis is whether the box covers on each two adjacent picking claws move and collide, and the movement of the picking claw to shake off the excess or interlayer box covers, so that the multiple picking claws that have passed the verification are rotated to parallel angles, and the box covers are fed to the transfer platform based on the X, Y, and Z axial motion.

[0030] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0031] In the existing automatic feeding of box covers, there is a probability of stacking or relative jamming (such as two jams together) of the box covers themselves during the transmission process, which causes the probability of over-absorption when sucking materials, which not only increases the probability of damaging the junction box or internal components during subsequent assembly, but also greatly increases the loss of the box covers; at the same time, since the layout of the box covers in the material box is disorderly, continuous transmission is adopted for continuous feeding. However, it cannot be guaranteed that each adsorption position point is in the middle during the adsorption process. Therefore, even if the requirements of the front and back sides and the long and short sides are met, the transfer and integration cannot be effectively carried out due to the position deviation of the adsorption point. The box cover needs to be sent back to the material box for material extraction again, which causes material supply interruption and reduces assembly efficiency. In addition, once the same photovoltaic module has multiple junction boxes, the materials need to be sucked at one time, which greatly increases the probability that the materials cannot be sorted out, and the electrostatic adsorption between the box covers themselves also increases the difficulty of material extraction; then, in the automatic assembly of the box cover, it is necessary to apply glue on the surface of the box body, and assemble the box cover when the glue is close to the solidified state, otherwise the glue will overflow after assembly due to the glue not drying, thereby affecting the gluing quality and other deficiencies. The overall design of the box cover assembly process of the junction box in this application cleverly solves the various deficiencies of the existing structure. After adopting the box cover assembly process of the junction box, first, the box covers are dispersed and spread on the receiving box based on the vibration shaking method, and the box covers with similar directions and the same front are adsorbed one by one by negative pressure based on vision, and the box cover material adsorption position is verified and multiple box covers with the same direction are adjusted to perform negative pressure material picking, and then the taken box covers are transferred to the transfer platform for multiple box covers to be aligned and corrected; then the component with the box body installed is translated into the assembly center, the surface of the box body faces upward and is coated with a sealant layer, and at the same time, a glue detection probe is inserted into the depth of the sealant layer to obtain the curing degree of the sealant layer, and at the set curing degree, the glue detection probe is reset; finally, a robot is used to adsorb multiple box covers on the transfer platform, and the box covers are inserted into the box body one by one from one end or one side, and then the other end or the other side is buckled and mounted on the surface of the cover body, and at the same time, the box cover is flattened and glued to the sealant layer with the assistance of a curing light source. Therefore, on the one hand, the present invention increases the selection rate of material picking based on the shaking and flipping of the box cover during the feeding of the box cover, thereby reducing the error rate of material picking and improving the feeding efficiency. At the same time, during the verification and correction, the box cover is kept aligned and positioned on the transfer platform with the front and back sides consistent, thereby reducing the interruption rate of feeding. On the other hand, based on the curing degree detection of the sealant layer, gluing and snapping are implemented within the set curing degree, and with the assistance of a light source, the box cover assembly quality is improved and the glue overflow rate is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a box cover assembly device for a junction box of Example 1;

[0033] Figure 2 for Figure 1Schematic diagram of the local structure (box cover feeding unit, curing degree detection unit, assembly robot, assembly auxiliary unit);

[0034] Figure 3 for Figure 2 Schematic diagram of the local structure (box cover feeding unit);

[0035] Figure 4 for Figure 3 An enlarged schematic diagram of the structure of the transfer platform;

[0036] Figure 5 for Figure 3 Schematic diagram of the partial structure (vibrating hopper, vibrating material box)

[0037] Figure 6 for Figure 3 An enlarged schematic diagram of the structure of the feeding manipulator;

[0038] Figure 7 for Figure 6 A schematic cross-sectional view of a single material-retrieving claw;

[0039] Figure 8 for Figure 2 A schematic diagram of the structure of the medium curing degree detection unit;

[0040] Fig. 9 for Figure 2 A magnified schematic diagram of the structure of the assembly robot;

[0041] Fig.10 It is an enlarged schematic diagram of the structure of the vibrating hopper and the vibrating material box in Example 2;

[0042] Among them: A, box cover feeding unit; 1, vibrating hopper; 10, material seat; 11, hopper; 12, first vibrator; 13, interception plate; 14, power device; 2, vibrating material box; 20, receiving box; 200, box frame; 201, flexible box bottom layer; 202, brush; 21, second vibrator; 210, vibrating rod; 22, waste cover collection box; 3, feeding manipulator; 31, material taking seat; 32, transfer unit; 320, X-axis moving assembly; a1, first axis seat; a2, first power member; I, track; 321, Y-axis moving assembly; b1, second axis seat; b2, second power member; b20, transmission rack; b21, travel gear; b22, power motor; II, track; 33, material-taking claw; 330, fixed seat; 331, mobile seat; 332, negative pressure adsorption head; 333, power device; g, guide rail; m, pulley; 4, transfer platform; 40, fixed seat plate; 41, long side fence; 42, short side fence; 43, short side aligning module; 430, comb plate; 431, comb power device; 44, long side aligning module; 440, aligning grid bar; 441, synchronous connecting rod; 442, connecting rod power device;

[0043] B, component loading unit; B1, conveyor belt; B2, calibration component;

[0044] C, curing degree detection unit; C1, glue detection probe; C2, curing power device;

[0045] D, assembly manipulator; D1, material taking head; D2, arm;

[0046] E, assembly auxiliary unit; E1, curing light source; E2, visual inspection component; e20, visual camera; e21, fill light. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0048] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0053] Example 1

[0054] like Figures 1 to 9 As shown, the box cover assembly equipment of the junction box of this embodiment includes a box cover feeding unit A, a component feeding unit B, a curing degree detection unit C of the sealing layer on the surface of the box body, an assembly robot D, and an assembly auxiliary unit E.

[0055] The box cover feeding unit A includes a vibrating hopper 1, a vibrating material box 2, a feeding manipulator 3 and a transfer platform 4. Specifically, the vibrating hopper 1 includes a material seat 10, a hopper 11 installed on the material seat 10, and a first vibrator 12, wherein the first vibrator 12 can spread the box cover relatively and transmit it to the outlet by shaking. The hopper 11 is elastically installed on the material seat 10 up and down, and the first vibrator 12 drives the hopper 11 to move up and down. The use of shaking is more conducive to the distribution and shaking off of the box cover. Furthermore, the vibrating hopper 1 also includes an interception plate 13 installed on the material seat 10 and capable of intercepting in the hopper 11, and a power device 14 that drives the interception plate 13 to move up and down, wherein the interception plate 13 can move synchronously with the hopper 11. Flow control is formed based on the interception plate, and during the shaking process, the interception plate can be stationary or keep intercepting and moving, so as to improve the control of the feeding amount and reduce the overlap rate of the box cover.

[0056] The vibrating material box 2 includes a material receiving box 20 located below the discharge end of the hopper 11, and a second vibrator 21 that drives the material receiving box 20 to form multi-angle movements in the up and down directions to flip and spread the box cover around. The material receiving box 20 includes a box frame 200 and a flexible box bottom layer 201 formed at the bottom of the box frame 200, wherein the flexible box bottom layer 201 can throw the box cover upward based on vibration and elastic force. The flip probability of the box cover movement is increased based on flexibility to increase the accuracy of the box cover taking materials. The second vibrator 21 includes a plurality of vibration rods 210 located around the material receiving box 20, wherein one or more of the plurality of vibration rods 210 move synchronously to form vibration. Select the corresponding vibration according to the actual working conditions to improve the need for taking materials.

[0057] The feeding robot 3 includes a visual unit, a material picking seat 31, a transfer unit 32 that drives the material picking seat 31 to form a linear motion in the X and Y axis directions based on the instructions of the visual unit, and material picking claws 33 that are arranged side by side on the material picking seat 31 and can move along the Z axis direction.

[0058] The transfer unit 32 includes an X-axis moving component 320 and a Y-axis moving component 321, wherein the X-axis moving component 320 includes a first shaft seat a1 having a track Ⅰ extending along the X-axis direction, a first power member a2 installed in the first shaft seat a1 to form a linear motion, and the material picking seat 31 is matched and docked with the track Ⅰ; the Y-axis moving component 321 includes a second shaft seat b1 having a track Ⅱ extending along the Y-axis direction, a second power member b2 installed on the second shaft seat b1 and forming a linear motion, and the first shaft seat a1 is matched and docked with the track Ⅱ. The motion guide formed based on the track Ⅰ and the track Ⅱ realizes the XY axial motion. The first power member a2 is a transmission screw extending along the X-axis; the second power member b2 includes a transmission rack b20 fixed on the second shaft seat b1, a travel gear b21 installed on the first shaft seat a1, and a power motor b22.

[0059] The rotation condition of the claw head of each picking claw 33 around the Z axis is set, the center distance between each adjacent claw heads is equal and is D, the length of each box cover is L, L≤D≤1.8L, wherein the first degree of freedom is formed based on the rotation of the picking claw, and the second degree of freedom is formed based on the linear motion of the upper and lower misalignment of the picking claw, and in the synchronous motion of the first degree of freedom and the second degree of freedom, the box covers on each two adjacent picking claws collide with each other, and the movement of the picking claw to shake off the excess or interlayer box covers are used as the basis for verification, so that the multiple picking claws that have passed the verification are rotated to parallel angles, and the box covers are fed to the transfer platform based on the X, Y, and Z axial motions. In some specific embodiments, the material picking claw 33 includes a fixed seat 330 fixedly connected to the material picking seat 31, a movable seat 331 installed on the fixed seat 330 and capable of moving up and down along the Z-axis direction, a negative pressure adsorption head 332 installed on the movable seat 331, and a power device 333 for driving the negative pressure adsorption head 322 to rotate, wherein the adsorption and rotation of the negative pressure adsorption head 322 can be synchronized. Under the premise of satisfying the Z-axis movement, based on the synchronization of adsorption and rotation, it is not only convenient to pick up materials, but also provides a basis for verification. A guide rail g extending along the Z-axis direction is provided on the fixed seat 330, and the movable seat 331 slides on the guide rail g and moves up and down along the Z-axis during up and down traction. Generally, a pulley m or a pulley is used for traction. At the same time, a hollow stepping motor is used for rotation and negative pressure adsorption.

[0060] In addition, the transfer platform 4 includes a fixed seat plate 40, a long side fence 41 and a short side fence 42 formed on the fixed seat plate 40, a short side aligning module 43 moving along the long side fence 41, and a long side aligning module 44 moving along the short side fence 41, wherein the short side aligning module 43 and the long side aligning module 44 are staggered, and the long side fence 41 and the short side fence 42 are used as references to align the box covers transferred to the transfer platform 4 during their respective movements. Before assembly, accurate position alignment is required.

[0061] The short side guard is a single bar 42 and is located on one side of the fixed seat plate 40; there are multiple long side guards 41, wherein each long side guard 41 is fixed to the fixed seat plate 40 from the end portion perpendicularly against the short side guard 42, and the multiple long side guards 41 are distributed at intervals along the length direction of the short side guard 42; the short side tidying module 43 includes a comb plate 430 and a comb power device 431 respectively against each long side guard 41 and synchronously moved along the long side guard 41 and installed on the fixed seat plate 40, and each comb groove is arranged A long side fence 41; a long side tidying module 44 includes tidying bars 440 corresponding to and arranged in parallel with the long side fence 41, a synchronous connecting rod 441 for synchronously connecting a plurality of tidying bars 440 and slidably arranged on the fixed seat plate 40, and a connecting rod power device 442 for pushing the synchronous connecting rod 441 to move so as to move the tidying bars 440 along the fixed seat plate 40 toward the long side fence to form tidying, wherein the tidying bars 440 move between each comb tooth and the spaced long side fence 41. The long side fence 41 and the short side fence 40 are fixed, and the dislocation tidying is formed by the relative movement of the long side tidying module 44 and the short side tidying module 43. In this way, there is not only enough storage space, but also the final feeding position can be further adjusted through tidying even if there is a slight deviation in the material taking.

[0062] The component loading unit B includes a conveyor belt B1 forming a conveyor channel and correction components B2 arranged on both sides of the conveyor belt B1, wherein the conveyor belt B1 and the correction components B2 are conventional structures and will not be described in detail herein.

[0063] The curing degree detection unit C of the sealant layer on the surface of the box body comprises a sealant detection probe C1 corresponding to the box body one by one, and a curing power device C2 for driving the sealant detection probe C1 to rise and fall synchronously.

[0064] The assembly robot D is a product purchased from the market, which includes a material picking head D1 with an adsorption box cover and an arm D2 with multi-degree-of-freedom rotation and displacement.

[0065] The assembly auxiliary unit E includes a curing light source E1 located at the top and corresponding to the box body one by one, and a visual detection component E2 located at the side and corresponding to the box body one by one, wherein each visual detection component E2 includes a visual camera e20 and a fill light e21.

[0066] In summary, the assembly process of the junction box cover of this embodiment includes the following steps:

[0067] S1. Loading of box cover

[0068] First, the box lids are spread out on the receiving box by vibration shaking. Second, the box lids with similar orientations and the same front are adsorbed one by one by negative pressure based on vision, and the adsorption position of the box lids is verified and multiple box lids with the same orientation are adjusted for negative pressure material collection. Finally, the taken box lids are transferred to the transfer platform for alignment and correction of multiple box lids.

[0069] S2. Component loading

[0070] The assembly with the box installed is translated into the assembly center, with the surface of the box facing upward and coated with a sealant layer, and a glue detection probe is inserted into the sealant layer to obtain the curing degree of the sealant layer, and the glue detection probe is reset at the set curing degree;

[0071] S3, buckle cover assembly

[0072] A robot is used to absorb multiple box covers on the transfer platform, and the box covers are inserted into the box body from one end or one side one by one, and then the other end or the other side is buckled and installed on the surface of the cover body, and at the same time, the box cover is flattened and glued to the sealant layer with the assistance of a curing light source;

[0073] S4. Installation and testing

[0074] Through the visual camera and lighting compensation corresponding to the junction box, the installation is inspected to see if it is qualified.

[0075] Specifically, in step S1, the box lids scattered on the receiving box are flipped based on vibration to reverse the front and back sides and direction of the box lids. Based on flipping, the suction accuracy of the negative pressure manipulator to select the box lids is increased, and the feeding efficiency is improved. The vibration formed is a multi-angle overturn in the up and down directions; this overturn is more conducive to the tumbling of the box lids. In step S1, the verification adopted is based on the rotation of the adsorption position and the synchronous movement of the adsorption position in the up and down directions to shake off the stacked box lids or based on the rotation collision of the adsorbed box lids to remove the box lids with incorrect adsorption positions, and re-adsorb to form multiple box lids with similar adsorption positions, consistent directions, and consistent front and back sides to be sent to the transfer platform. Based on the multi-free movement, the verification is formed to improve the success rate of feeding and reduce the interruption rate. During the verification process, each adjacent two adsorption positions move up and down while rotating. The verification speed formed in this way is fast and relatively accurate. On the transfer platform of step S1, there are mounting stations corresponding to the box bodies on the components one by one, and the verified box lids are placed in each mounting station respectively, and then the box lids are corrected in length and width directions. Based on correction and calibration to meet the needs of precise assembly. The correction and calibration method adopted uses the length and width direction of a box cover as the grid reference, and the box cover is corrected with the grid reference by synchronously pushing multiple box covers along the length and width direction of the box cover. Based on the bidirectional grid motion reference, the synchronous top-pushing method can be used to synchronously implement the synchronous correction and calibration of multiple box covers. In step S2, the glue detection probe used corresponds to the position of the box body one by one, and the resistance encountered by the insertion based on the up and down movement is used to obtain the curing degree information. The specific resistance can be set according to the actual situation. A curing light source is provided directly above each box body, which can quickly cure while gluing, thereby improving the quality of the box cover assembly.

[0076] Example 2

[0077] The box cover assembly device of the junction box of this embodiment is basically the same as that of the embodiment 1, except for the structure of the vibrating material box.

[0078] Combination Fig.10 As shown, in this example, a brush 202 extending upward is provided on the top of the box frame 200, wherein the brush 202 is used to remove the excess or interlayer box covers; the brushing method further reduces the probability of wrong material collection. Furthermore, a waste cover collection box 22 is provided on one side of the receiving box 20. When damaged or unqualified products appear, they can be adsorbed and sent to the waste cover collection box 22. That is, the brush on the top of the receiving box is used to brush the stacked or excess box covers on the negative pressure material picking hand into the receiving box, thereby reducing the error rate of box cover feeding. At the same time, the negative pressure material picking hand sends the NG box covers to the waste material receiving box based on vision.

[0079] In summary, after adopting the box cover assembly process of the junction box, first, the box covers are dispersed and spread on the receiving box based on the vibration shaking method, and the box covers with similar directions and the same front are adsorbed one by one by negative pressure based on vision, and the box cover material adsorption position is verified and multiple box covers with the same direction are adjusted to perform negative pressure material picking, and then the taken box covers are transferred to the transfer platform for multiple box covers to be aligned and corrected; then the component with the box body installed is translated into the assembly center, the surface of the box body faces upward and is coated with a sealant layer, and at the same time, a glue detection probe is inserted into the depth of the sealant layer to obtain the curing degree of the sealant layer, and at the set curing degree, the glue detection probe is reset; finally, a robot is used to adsorb multiple box covers on the transfer platform, and the box covers are inserted into the box body one by one from one end or one side, and then the other end or the other side is buckled and mounted on the surface of the cover body, and at the same time, the box cover is flattened and glued to the sealant layer with the assistance of a curing light source.Therefore, on the one hand, the present invention increases the selection rate of material picking based on the shaking and flipping of the box lids during the feeding, thereby reducing the error rate of material picking and improving the feeding efficiency. At the same time, during the verification and correction, the box lids are kept aligned and positioned on the transfer platform with the front and back sides consistent, thereby reducing the interruption rate of feeding. On the other hand, based on the curing degree detection of the sealant layer, gluing and snapping are implemented within the set curing degree, and with the assistance of a light source, the box lid assembly quality is improved and the glue overflow rate is reduced. The third aspect is to increase the adsorption accuracy of the negative pressure manipulator in selecting the box lid based on flipping, thereby improving the feeding efficiency. At the same time, the vibration formed is a multi-angle overturning in the up and down directions. This overturning is more conducive to the tumbling of the box lid, that is, the use of a shaking method is more conducive to the box lid. The scattering and shaking off of the box lids are achieved by forming a flow control based on the interception plate. Moreover, during the shaking process, the interception plate can be stationary or can keep intercepting and moving, so as to improve the control of the feeding amount and reduce the overlapping rate of the box lids. The fourth aspect adopts the verification based on the self-rotation of the adsorption position and the synchronous movement of the adsorption position in the up and down directions, so as to shake off the stacked box lids or remove the box lids with incorrect adsorption positions based on the rotation collision of the adsorbed box lids, and re-adsorb to form multiple box lids with similar adsorption positions, consistent directions, and consistent front and back sides, and send them to the transfer platform. The verification is formed based on multi-free movement, which improves the success rate of feeding and reduces the interruption rate. At the same time, during the verification process, each adjacent adsorption position moves up and down while rotating, so that the box lids formed The verification speed is fast and relatively accurate; the fifth aspect is based on the correction and calibration to meet the needs of precise assembly. The correction and calibration method adopted uses the length and width directions of a box cover as the grid reference, and simultaneously pushes multiple box covers horizontally along the length and width directions of the box cover so that the box cover is corrected with the grid reference. Based on the two-way grid movement reference, a synchronous top-pushing method can be used to simultaneously implement the synchronous correction and calibration of multiple box covers. This method not only has enough storage space, but also can further adjust the final feeding position through correction even if there is a slight deviation in the material taking; the sixth aspect uses a glue detection probe that corresponds to the position of the box body one by one, and based on the resistance encountered by the up and down movement insertion to obtain the curing degree information, the specific resistance It can be set according to actual conditions. In addition, a curing light source is provided directly above each box body, which can quickly cure the box cover while gluing, thereby improving the quality of the box cover assembly. The seventh aspect is based on the motion guide formed by Track Ⅰ and Track Ⅱ to realize XY axial movement. At the same time, on the premise of satisfying the Z-axis movement, based on the synchronization of adsorption and self-rotation, it is not only convenient for material removal, but also provides a basis for verification. In addition, a pulley or pulley is used for traction. At the same time, a hollow stepping motor is used for self-rotation and negative pressure adsorption. The eighth aspect is based on the brush on the top of the receiving box to brush the stacked or redundant box covers on the negative pressure picking hand into the receiving box, thereby reducing the error rate of box cover feeding. At the same time, based on vision, the negative pressure picking hand sends the NG box covers to the waste receiving box.

[0080] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A junction box cover assembly process, characterized in that: It includes the following steps: S1. Loading of box cover First, the box lids are spread out on the receiving box by vibration shaking. Second, the negative pressure picker is used to pick up the box lids with similar orientation and the same front face one by one based on vision, and the pick-up position of the box lids is verified and multiple box lids with the same orientation are adjusted for negative pressure picking. Finally, the taken box covers are transferred to the transfer platform for alignment of multiple box covers; S2. Component loading The assembly with the box installed is translated into the assembly center, with the surface of the box facing upward and coated with a sealant layer, and a glue detection probe is inserted into the sealant layer to obtain the curing degree of the sealant layer, and the glue detection probe is reset at the set curing degree; S3, buckle cover assembly A robot is used to absorb multiple box covers on the transfer platform, and the box covers are inserted into the box body one by one from one end or one side, and then the other end or the other side is buckled and installed on the surface of the cover body. At the same time, the box cover is flattened and glued to the sealant layer with the assistance of a curing light source.

2. The assembly process of the junction box cover according to claim 1, characterized in that: In step S1, the box covers scattered on the receiving box are flipped over due to vibration to reverse the front and back sides and directions of the box covers.

3. The assembly process of the junction box cover according to claim 2, characterized in that: The vibration formed is a multi-angle overturn in the up and down direction; and / or, based on the brush on the top of the receiving box, the overlapping or redundant box covers on the negative pressure material picking hand are brushed into the receiving box; and / or, based on vision, the negative pressure material picking hand sends the NG box covers to the waste receiving box.

4. The assembly process of the junction box cover according to claim 1, characterized in that: In step S1, the verification adopted is based on the rotation of the adsorption position and the synchronous movement of the adsorption position in the up and down directions, so as to shake off the stacked box covers or remove the box covers with incorrect adsorption positions based on the rotation and collision of the adsorbed box covers, and re-adsorb to form multiple box covers with similar adsorption positions, consistent directions, and consistent front and back sides, and send them to the transfer platform.

5. The assembly process of the junction box cover according to claim 4, characterized in that: During the calibration process, every two adjacent adsorption positions move upward and downward toward each other while rotating.

6. The junction box cover assembly process according to claim 1, characterized in that: On the transfer platform of step S1, mounting stations corresponding to the box bodies on the assembly are arranged one by one, and the checked box covers are placed in each mounting station respectively, and then the box covers are calibrated in length and width directions.

7. The assembly process of the junction box cover according to claim 6, characterized in that: The alignment and calibration method adopted uses the length and width directions of a box cover as the grid reference, and the box covers are aligned with the grid reference by synchronously pushing multiple box covers horizontally along the length and width directions of the box covers.

8. The assembly process of the junction box cover according to claim 1, characterized in that: In step S2, the glue detection probes used correspond to the positions of the box body one by one, and the curing degree information is obtained based on the resistance encountered when the probes are inserted up and down.

9. The assembly process of the junction box cover according to claim 1, characterized in that: A curing light source is provided directly above each box body; and / or, the box cover assembly process further comprises step S4, wherein in step S4, a visual camera and light compensation corresponding to each junction box are used to detect whether the installation is qualified.

10. An assembly device used in the assembly process of the junction box cover according to any one of claims 1 to 9, characterized in that: The assembly equipment includes a box cover loading unit, a component loading unit, a curing degree detection unit for the sealing glue layer on the surface of the box body, an assembly robot, and an assembly auxiliary unit, wherein the box cover loading unit includes a vibrating hopper, a vibrating material box, a feeding robot, and a transfer platform, wherein the vibrating hopper can relatively spread the box covers and transmit them to the outlet by shaking, and the vibrating material box forms multi-angle movements to flip over and spread the box covers around, and the feeding robot sends the verified box covers to the transfer platform for correction based on the XYZ axial movement, and the verification is based on the first degree of freedom formed by the rotation of the picking claw, and the second degree of freedom formed by the linear movement based on the upper and lower misalignment of the picking claw, and in the synchronous movement of the first degree of freedom and the second degree of freedom, the verification is based on whether the box covers on each two adjacent picking claws collide with each other, and the movement of the picking claw to shake off the excess or interlayer box covers. And / or, the component loading unit includes a conveyor belt forming a conveyor channel and correction components arranged on both sides of the conveyor belt; And / or, the curing degree detection unit includes a glue detection probe corresponding to the box body one by one, and a curing power device driving the glue detection probe to rise and fall synchronously; And / or, the assembly robot comprises a material taking head having a suction box cover, and an arm having multi-degree-of-freedom rotation and displacement; And / or, the assembly auxiliary unit includes a curing light source located at the top and corresponding one-to-one with the box body, and a visual detection component located at the side and corresponding one-to-one with the box body.

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