Feeding unit and cover buckling system

Abstract

The utility model provides a feeding unit and a cover buckling system, relates to the field of photovoltaic technology, and aims to solve the technical problem of low production efficiency of cover body feeding when a cover body and a box body are assembled. The feeding unit comprises a material table, a mechanical arm and a first jacking part movably arranged on the material table, the material table is used for bearing a stock bin, and a plurality of cover bodies are stacked in the stock bin in the depth direction of the stock bin. The first jacking part is used for penetrating through the bottom of the stock bin to push the plurality of cover bodies to move towards the top of the stock bin; the mechanical arm is used for grabbing the cover body located on the top layer in the multiple cover bodies and placing the cover body at a preset position. According to the feeding unit, automatic feeding of a plurality of cover bodies can be achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a feeding unit and a cover buckling system. Background Art

[0002] In the assembly process of snapping the cover body onto the box body, the cover body needs to be manually picked up and placed at the opening of the corresponding box body, which makes the feeding process low in automation and production efficiency. Utility Model Content

[0003] The utility model aims to provide a feeding unit and a cover buckling system to solve the technical problem of low cover feeding production efficiency when the cover is assembled with a box body.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides a feeding unit, comprising a material platform, a manipulator, and a first lifting part movably arranged on the material platform, wherein the material platform is used to carry a material bin, and a plurality of covers are stacked in the material bin along the depth direction of the material bin;

[0006] The first lifting portion is used to push the multiple covers toward the top of the silo through the bottom of the silo;

[0007] The robot is used to grab the cover body located at the top layer among the multiple cover bodies and place it at a preset position.

[0008] According to at least one embodiment of the present utility model, the feeding unit further comprises a flipping device, the flipping device comprises a cylinder and a second lifting portion movably arranged on the bottom wall of the cylinder, and the shape of the cross section of the cavity of the cylinder matches the shape of the cover;

[0009] The cylinder body further comprises two side walls which are arranged opposite to each other, and the second lifting portion is close to one of the two side walls.

[0010] According to at least one embodiment of the present utility model, the feeding unit further comprises a first image acquisition device for identifying the front and back sides of the cover body, and the first image acquisition device is located at the end of the manipulator.

[0011] According to at least one embodiment of the present utility model, the feeding unit further includes a second image acquisition device communicatively connected to the manipulator, and the second image acquisition device is used to locate the preset position.

[0012] In a second aspect, the utility model provides a cover buckle unit, including a pressurizing device, the pressurizing device including a first linear motion mechanism, a height sensor, and a pressure plate provided on a first telescopic portion of the first linear motion mechanism, the height sensor being communicatively connected to the first linear motion mechanism, and the first linear motion mechanism being used to control the height of the pressure plate based on information from the height sensor;

[0013] The pressing plate is used to press the cover body and snap it onto the opening of the box body.

[0014] According to at least one embodiment of the utility model, the cover buckle unit further includes a limiting device for limiting the cover body at a position close to the opening of the box body, and the limiting device includes a second linear motion mechanism and a clamping device provided on the second telescopic part of the second linear motion mechanism;

[0015] The clamping device is used for clamping two opposite ends of the cover body.

[0016] According to at least one embodiment of the present utility model, the clamping device includes two clamping parts and a bracket provided on the second telescopic part, and the middle parts of the two clamping parts are respectively hinged to the bracket;

[0017] Each of the clamping parts has a first end and a second end opposite to each other, and the first ends of the two clamping parts are connected via a third linear motion mechanism;

[0018] A shaft is fixed to the second end of each clamping portion, and the clamping device further comprises two clamping jaws, each of which is movably connected to the corresponding shaft, and each shaft is sleeved with a torsion spring for providing elastic recovery for the corresponding clamping jaw;

[0019] The clamping claw is a U-shaped structure, the openings of the two U-shaped structures are opposite to each other, and the cavity of the U-shaped structure matches the end of the cover body.

[0020] According to at least one embodiment of the present utility model, the cover buckle unit further includes a first slide rail and a second slide rail slidably arranged on the first slide rail, and the extension direction of the first slide rail intersects with the extension direction of the second slide rail;

[0021] The pressurizing device and the limiting device are both arranged on a slider, and the slider is slidably arranged on the second slide rail;

[0022] The slider is in communication connection with a second image acquisition device, and the second image acquisition device is used for positioning the box body.

[0023] According to at least one embodiment of the present utility model, the pressing plate is a plate made of polyurethane; or,

[0024] A buffer structure is arranged on the surface of the pressing plate facing the cover body, and the buffer structure includes one of a rubber pad, an air pad or a film with convex points.

[0025] Among the one or more technical solutions provided in the exemplary embodiments of the present utility model, at least one of the following beneficial effects can be achieved.

[0026] The feeding unit of the exemplary embodiment of the utility model includes a material table, a manipulator, and a first lifting part movably arranged on the material table. By stacking multiple cover bodies in the material bin, each layer has only one cover body. When the material bin is moved to the material table, the first lifting part passes through the bottom of the material bin and abuts against the cover body in the bottom layer in the material bin. The first lifting part makes all the cover bodies in the material bin rise to the opening position of the material bin. After reaching the position, the manipulator can grab a cover body located at the top layer and place it at a preset position, such as on a box body, so as to complete the automatic feeding of the cover body. Based on this, the material bin can accommodate multiple cover bodies. The depth of the material bin makes it difficult for the manipulator to grab the cover body at the bottom layer. The feeding unit of the exemplary embodiment of the utility model sets the first lifting part on the material table, so that the cover body to be grabbed is always close to the top of the material bin, so as to facilitate the grabbing of the manipulator, and realizes the feeding of multiple cover bodies in a material bin without manual intervention, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description thereof, wherein these drawings are included to provide a further understanding of the present invention, and the accompanying drawings are included in and constitute a part of this specification;

[0028] Figure 1 It is a schematic diagram of the structure of a feeding unit according to an embodiment of the utility model;

[0029] Figure 2 It is a schematic diagram of the axonometric structure of the cover buckle system according to the embodiment of the utility model;

[0030] Figure 3 It is a side view structural diagram of a buckle cover system according to an embodiment of the utility model;

[0031] Figure 4 yes Figure 2 A magnified view of part A;

[0032] Figure 5 yes Figure 2 A magnified view of part B;

[0033] Figure 6 It is a schematic diagram of the axonometric structure of the limit device according to the embodiment of the utility model;

[0034] Figure 7It is a schematic diagram of the main structure of the limiting device according to the embodiment of the utility model.

[0035] Figure numerals: 10, manipulator; 11, first image acquisition device; 20, silo; 30, cover body; 40, material platform; 41, first lifting part; 51, cylinder; 511, side wall; 52, second lifting part; 60, pressurizing device; 61, pressure plate; 62, first linear motion mechanism; 63, height sensor; 70, limit device; 71, bracket; 72, clamping part; 721, first end; 722, second end; 73, third linear motion mechanism; 74, shaft; 75, clamping claw; 76, second linear motion mechanism; 81, first slide rail; 82, second slide rail; 90, second image acquisition device. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] The function of the photovoltaic junction box is to connect and protect the photovoltaic modules, connect the power generated by the photovoltaic cells to the external circuit, and conduct the current generated by the photovoltaic modules. When the box body of the junction box is connected to the photovoltaic module, the opening on the box body is convenient for the connection operation, and then the cover body needs to be snapped onto the opening of the box body.

[0038] In the related art, during the assembly process of the cover body and the box body, it is necessary to manually buckle the cover body and the box body of the junction box, which causes the feeding of the cover body to be labor-intensive and the production efficiency to be low.

[0039] In response to the above problems, the feeding unit provided by the exemplary embodiment of the utility model, through the cooperation of the manipulator and the first lifting part, the first lifting part keeps the cover body of the top layer in the silo close to the top position of the silo at all times, and the manipulator can conveniently grab a cover body from the silo each time and place it on the box body, thereby realizing automatic feeding and improving production efficiency.

[0040] It should be noted that the cover body in the feeding unit of the present invention may be a cover body of a photovoltaic junction box, or may be other covers that need to be assembled with a box body.

[0041] Figure 1 Schematic diagram of the feeding unit structure according to the embodiment of the utility model. Figure 1As shown, the feeding unit provided by the exemplary embodiment of the utility model includes a material table 40, a manipulator 10 and a first lifting part 41 movably arranged on the material table 40, the material table 40 is used to support the material bin 20, and a plurality of cover bodies 30 are stacked in the material bin 20 along the depth direction of the material bin 20; the first lifting part 41 is used to push the plurality of cover bodies 30 toward the top of the material bin 20 through the bottom of the material bin 20; the manipulator 10 is used to grab the cover body 30 located at the top layer among the plurality of cover bodies 30 and place it at a preset position.

[0042] In actual applications, the silo 20 can be a box-shaped structure with an opening at the top, and its bottom wall can have a through hole for the first lifting portion 41 to pass through; the silo 20 can also be a frame structure, and the frame at the bottom only supports the peripheral edge position of the cover body 30, and the first lifting portion 41 can pass through the frame to directly abut against the cover body 30 located at the bottom layer among the multiple cover bodies 30; the multiple cover bodies 30 are stacked in the silo 20 along the depth direction of the silo 20, that is, there is only one cover body 30 in each layer, or, in other words, the cross-sectional size of the silo 20 is consistent with the size of the cover body 30. The silo 20 moves to the material platform 40. When the cover 30 in the silo 20 is located deep and it is inconvenient for the manipulator 10 to grab it, the first lifting part 41 located on the material platform 40 rises, passes through the bottom of the silo 20, and pushes all the covers 30 in the silo 20 to move upward until the cover 30 on the top layer is located at the top opening position of the silo 20; at this time, the manipulator 10 can easily grab the cover 30 on the top layer, and then place the grabbed cover 30 at a preset position, which can be the opening position of the box body, for example. This cycle is repeated until all the covers 30 in the silo 20 are used up. Based on this, the automatic feeding of the covers 30 can be realized by cooperating with the manipulator 10 and the first lifting part 41, without manual intervention, thereby improving the feeding efficiency of the covers 30 and reducing the workload of personnel.

[0043] Since the cross-sectional dimensions of the silo 20 are consistent with the dimensions of the cover 30, it is difficult to grasp the cover 30 by clamping the peripheral edge of the cover 30, and it is not easy to separate the stacked covers 30. Exemplarily, the above-mentioned manipulator 10 can grasp the surface of the cover 30 by vacuum adsorbing the cover 30 with a suction cup. Exemplarily, a cylinder is also provided at the end of the manipulator 10, and the suction cup is provided at the telescopic part of the cylinder. When the suction cup adsorbs the cover 30, the extension of the cylinder can also provide a certain pressure, making the adsorption more stable.

[0044] Exemplarily, a cylinder is provided at the bottom of the material platform 40, and a telescopic rod of the cylinder forms the first lifting portion 41. Optionally, an oil cylinder or other linear motion mechanisms such as a linear motor are provided at the bottom of the material platform 40 to form a telescopic first lifting portion 41.

[0045] Figure 2It is a schematic diagram of the axonometric structure of the cover buckle system according to the embodiment of the utility model; Figure 4 yes Figure 2 A magnified view of part A. Figure 4 and Figure 2 As shown, the feeding unit also includes a flipping device, which includes a cylinder 51 and a second lifting portion 52 movably arranged on the bottom wall of the cylinder 51, and the shape of the cross-section of the cavity of the cylinder 51 matches the shape of the cover body 30; the cylinder 51 also includes two oppositely arranged side walls 511, and the second lifting portion 52 is close to one of the two side walls 511.

[0046] Since all the covers 30 in the silo 20 may face upside down when stacked, the above-mentioned flipping device can flip the covers 30 facing upside down so that the robot 10 can place the covers 30 facing the right direction on the box body. When the above-mentioned situation of facing upside down occurs, the robot 10 grabs the cover 30 and places it in the cylinder 51, and flips the cover 30 through the second lifting part 52 to make it face upside down, and then grabs it to the opening position of the box body through the robot 10. Therefore, the preset position in the above-mentioned embodiment can also be the cylinder 51. Specifically, the shape of the cross section of the cavity of the cylinder 51 matches the shape of the cover 30. For example, when the cover body 30 is rectangular, the cross-section of the cavity of the cylinder 51 is also rectangular, and it has two oppositely arranged side walls 511, and the second lifting portion 52 is closer to one of the side walls 511; that is, the second lifting portion 52 is not located at the center of the cover body 30, so that when the second lifting portion 52 is lifted upward, the cover body 30 can be turned over in the cavity of the cylinder 51. Exemplarily, the depth of the cavity of the cylinder 51 can be greater than or equal to the spacing between the two side walls 511, so that there is enough space for turning over. Exemplarily, a cylinder is provided at the bottom of the cylinder 51, and the telescopic rod of the cylinder forms the second lifting portion 52. Optionally, an oil cylinder, or other linear motion mechanisms such as a linear motor are provided at the bottom of the cylinder 51 to form a retractable second lifting portion 52.

[0047] Figure 3 : is a side view of the structure of the buckle cover system according to the embodiment of the utility model. Figure 3 and Figure 1 As shown, the feeding unit further includes a first image acquisition device 11 for identifying the front and back sides of the cover body 30 , and the first image acquisition device 11 is located at the end of the robot 10 .

[0048] The first image acquisition device 11 can be a high-definition CCD industrial camera, which is close to the suction cup at the end of the manipulator 10. When the suction cup of the manipulator 10 grabs the cover 30 in the silo 20, the cover 30 is photographed by the high-definition CCD industrial camera, and the image is transmitted back to the controller. The image algorithm is used to compare it with the correct image of the cover 30, and after comparison, it is confirmed whether it is the front or the back. When it is confirmed that the cover 30 is the front, the manipulator 10 places it at the opening position of the box body; when it is confirmed that the cover 30 is the back, the manipulator 10 places it in the cylinder 51, and the second lifting part 52 turns it over, and the manipulator 10 absorbs the cover 30 again and places it at the opening position of the corresponding box body. Exemplarily, the first image acquisition device 11 can also capture the direction of the cover body 30, such as the distribution of the long and short sides. When the direction of the cover body 30 deviates, it can communicate with the manipulator 10. Since the manipulator 10 is a multi-degree-of-freedom manipulator, such as a six-axis manipulator, the controller can be used to control the manipulator 10 to rotate or translate, so that the long and short sides of the cover body 30 match the long and short sides of the opening of the box body, and correctly place it on the opening of the box body.

[0049] like Figure 2 As shown, the feeding unit provided by the exemplary embodiment of the utility model further includes a second image acquisition device 90 communicatively connected to the robot 10, and the second image acquisition device 90 is used to locate a preset position.

[0050] Exemplarily, the second image acquisition device 90 can be a high-definition positioning camera that adopts Keyence CCD visual positioning, that is, CCD camera + computer vision positioning navigation; the position of the box body, the position of the silo 20 and the position of the cylinder 51 can be located by the positioning camera, and the positioning camera communicates with the manipulator 10. Based on the above position information, the controller controls the manipulator 10 to place the grasped cover body 30 into the cylinder 51 or the box body of the junction box of the photovoltaic module.

[0051] Exemplarily, the model of the controller may be CVX-320F, CVX320M, or CVX-350F, so as to compare and process the position information of the cover body 30, and control the manipulator 10 to move between the silo 20, the cylinder body 51, and the box body of the junction box according to the information.

[0052] In some embodiments, Figure 1 and Figure 4 As shown, the feeding unit further includes a conveyor belt for transferring the silo 20 , through which the silo 20 together with the cover body 30 stacked inside can be transferred to the material platform 40 , so as to realize fully automated feeding.

[0053] Figure 5 yes Figure 2 A magnified view of part B. Figure 2 and Figure 5As shown, an exemplary embodiment of the utility model further provides a cover snapping system, including a cover snapping unit and the above-mentioned feeding unit, the cover snapping unit includes a pressurizing device 60, the pressurizing device 60 includes a first linear motion mechanism 62, a height sensor 63 and a pressure plate 61 arranged on the first telescopic part of the first linear motion mechanism 62, the height sensor 63 is communicatively connected with the first linear motion mechanism 62, the first linear motion mechanism 62 is used to control the height of the pressure plate 61 based on the information of the height sensor 63; the pressure plate 61 is used to pressurize the cover body 30 and snap it onto the opening of the box body.

[0054] After the cover 30 is placed on the box opening of the corresponding junction box, a certain pressure needs to be applied to the cover 30, so that the cover 30 overcomes the resistance and is buckled on the box to complete the assembly. Exemplarily, the first linear motion mechanism 62 can be a cylinder or an oil cylinder. Specifically, the pressing plate 61 can complete the pressing action by being arranged on the first telescopic part of the cylinder. Exemplarily, the pressing plate 61 can be placed horizontally or at a slightly inclined angle, and pressurize the cover 30 from top to bottom, so that the cover 30 is assembled on the box. Due to the fragility of photovoltaic components and the fact that the box is also easily damaged, excessive pressure can cause product defects. Therefore, the pressurizing device 60 is also provided with a height sensor 63 that is communicatively connected to the first linear motion mechanism 62, and the height of the pressing plate 61 can be accurately controlled by the height sensor 63 to avoid excessive descent height and cause the box to break. Exemplarily, the model of the above-mentioned height sensor 63 can be TN10*20.

[0055] When the pressure device 60 applies pressure to the cover body 30, in order to reduce the displacement of the relative position between the cover body 30 and the opening of the box body, the cover snapping effect is ensured. The cover snapping unit of the exemplary embodiment of the utility model further includes a limiting device 70 for fixing the box body. Figure 6 and Figure 7 As shown, Figure 6 It is a schematic diagram of the axonometric structure of the limit device according to the embodiment of the utility model; Figure 7 It is a schematic diagram of the main structure of the limiting device according to the embodiment of the utility model.

[0056] The above-mentioned limiting device 70 includes a second linear motion mechanism 76 and a clamping device arranged on the second telescopic part of the second linear motion mechanism 76; the clamping device is used to clamp the opposite ends of the box body. Exemplarily, the second linear motion mechanism 76 can be a cylinder or an oil cylinder, etc., and the second telescopic part is a telescopic rod of the cylinder or the oil cylinder. By arranging the clamping device on the second telescopic part of the second linear motion mechanism 76, the lifting and lowering of the clamping device can be realized, and the clamping device can clamp the opposite ends of the box body. When the cover body 30 is vertically pressed down by the above-mentioned pressure device 60, the clamping device fixes the relative position of the box body and the photovoltaic assembly, so that the cover body 30 is kept within the opening range of the box body, thereby ensuring the buckle cover effect.

[0057] like Figure 6 and Figure 7 As shown, the clamping device includes two clamping parts 72 and a bracket 71 arranged on the second telescopic part, and the middle parts of the two clamping parts 72 are respectively hinged to the bracket 71; each clamping part 72 has a first end 721 and a second end 722 opposite to each other, and the first ends 721 of the two clamping parts 72 are connected by a third linear motion mechanism 73; the second ends 722 of the two clamping parts 72 are respectively used to clamp the opposite ends of the box body.

[0058] In actual application, the two clamping parts 72 are connected in a scissor-like manner, and each clamping part 72 is hinged on the bracket 71 at the middle part of the first end 721 and the second end 722. With the bracket 71 as the intersection, the general outline of the two clamping parts 72 is X-shaped. The second ends 722 of the two clamping parts 72, that is, the free ends, can be relatively opened and closed to achieve clamping of the box body. The first ends 721 of the two clamping parts 72 are connected by a third linear motion mechanism 73. For example, the third linear motion mechanism 73 can be a cylinder with telescopic rods at both ends. Driven by the telescopic rod, the opening and closing between the first ends 721 of the two clamping parts 72 is achieved, so that the two clamping parts 72 rotate relative to the bracket, and further form the opening and closing between the two second ends 722.

[0059] In some embodiments, a shaft 74 is fixed to the second end 722 of each clamping portion 72, and the clamping device also includes two clamping jaws 75, each clamping jaw 75 is movably connected to the corresponding shaft 74, and each shaft 74 is provided with a torsion spring for providing elastic recovery for the corresponding clamping jaw 75; the clamping jaw 75 is a U-shaped structure, the openings of the two U-shaped structures are opposite, and the cavity of the U-shaped structure matches the end of the box body.

[0060] Exemplarily, a clamping claw 75 is provided on the shaft 74 of the second end 722 of each clamping portion 72, and the clamping claw 75 can be movably provided on the shaft 74 within a limited range. Specifically, the clamping claw 75 is a U-shaped structure, which is movably provided on the shaft 74 through a connecting rod, and the clamping claw 75 has a certain elastic recovery characteristic through a torsion spring provided on the shaft 74, so that when the two ends of the box body are clamped by the two clamping claws 75, there is a certain buffer, and this clamping method can not easily damage the clamped box body. Among them, the openings of the U-shaped structures of the two clamping claws 75 are opposite, and the two ends of the box body are both limited in the groove of the U-shaped structure, thereby limiting the degree of freedom of the box body, ensuring that the cover body 30 and the box body are not misaligned during the process of pressing the cover body 30 in the vertical direction.

[0061] In other embodiments, Figure 6As shown, each clamping device may further include two brackets 71 and four clamping parts 72, each two clamping parts 72 form a group, two clamping parts 72 in each group are respectively hinged on two brackets 71, the first ends 721 of each group of clamping parts 72 are connected by a connecting rod, and the connecting rods of the two groups of clamping parts 72 are connected by a third linear motion mechanism 73. The first ends 721 of each group of clamping parts 72 are connected by a shaft 74, and the clamping claws 75 are movably connected to the shaft 74 within a certain preset range through the connecting rod and the torsion spring.

[0062] For example, Figure 5 As shown, the pressure device 60 is fixedly connected to the fixed part of the third linear motion mechanism 73 of the limiting device 70, so that after the limiting device 70 clamps the box body, the pressure device 60 is pressed down, so that the cover body 30 is buckled on the opening of the box body, and there is no need to repeatedly position and move, thereby saving the operation of positioning the box body twice and also saving the need to move the limiting device 70 and the pressure device 60 to the position of the box body separately, thereby making the overall structure relatively simple and more efficient.

[0063] In some embodiments, Figure 2 As shown, the cover snap-on unit also includes a first slide rail 81 and a second slide rail 82 slidably arranged on the first slide rail 81, and the extension direction of the first slide rail 81 intersects with the extension direction of the second slide rail 82; the pressure device 60 and the limit device 70 are both arranged on the slider, and the slider is slidably arranged on the second slide rail 82; the slider is communicatively connected with the second image acquisition device 90, and the preset position is the position where the box body is located.

[0064] Since there are generally three junction boxes in a photovoltaic module, in order to be able to cover the box body of each junction box, the pressure device 60 and the limit device 70 need to move to the top of each box body. Specifically, by setting the pressure device 60 and the limit device 70 on the slider, the slider can slide along the extension direction of the second slide rail 82, and at the same time, the two ends of the second slide rail 82 can be slidably set on the first slide rail 81 respectively. Exemplarily, the extension direction of the first slide rail 81 and the extension direction of the second slide rail 82 can be set at a preset angle, or can be set vertically. When the two are set perpendicular to each other, the above-mentioned pressure device 60 and the limit device 70 can realize movement in two directions so as to align with the position of the box body of the junction box on the photovoltaic module.

[0065] In order to obtain the box body position of the junction box of the photovoltaic module, the above-mentioned second image acquisition device 90 is also used to locate the box body of each junction box, wherein the positioning information of the second image acquisition device 90 is transmitted back to the controller, and the controller controls the above-mentioned slider and the second slide rail 82 to drive the pressurizing device 60 and the limiting device 70 to run above the box body of the junction box.

[0066] In addition to using a height sensor 63 in the pressurizing device 60 to control the pressing height of the pressing plate 61 in order to reduce the probability of damage to the junction box. In the pressurizing device 60 of the exemplary embodiment of the utility model, the pressing plate 61 is a plate made of polyurethane, so that it has a certain elastic deformation when it is in pressurized contact with the cover body 30, which can effectively avoid the metal material from directly contacting the cover body of the junction box and causing damage. Exemplarily, the pressing plate 61 can also be made of rubber with a certain hardness. Optionally, a buffer structure is provided on the surface of the pressing plate 61 facing the cover body 30, and the buffer structure includes one of a rubber pad, an air pad or a membrane with bumps. The above-mentioned buffer structure has the same effect as the pressing plate 61 made of polyurethane, which will not be repeated here.

[0067] like Figure 2 As shown, in the exemplary embodiment of the present invention, the cover snapping system, the feeding unit grabs the cover 30 onto the box opening of the junction box of the photovoltaic module, the limiting device 70 in the cover snapping unit fixes the relative position of the box and the photovoltaic module, and the pressurizing device 60 presses the cover 30 downward and snaps it onto the corresponding box opening. Exemplarily, the cover snapping system also includes a housing for accommodating the feeding unit and the cover snapping unit, and a movable universal roller is also provided at the bottom of the housing to facilitate the position adjustment of the cover snapping system.

[0068] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A feeding unit, characterized in that: It comprises a material platform, a manipulator and a first lifting part movably arranged on the material platform, the material platform is used to carry a material bin, and a plurality of covers are stacked in the material bin along the depth direction of the material bin; The first lifting portion is used to pass through the bottom of the silo to push the multiple covers toward the top of the silo; The robot is used to grab the cover body located at the top layer among the multiple cover bodies and place it at a preset position.

2. The feeding unit according to claim 1, characterized in that: The feeding unit further comprises a flipping device, the flipping device comprises a cylinder and a second lifting portion movably arranged on the bottom wall of the cylinder, and the shape of the cross section of the cavity of the cylinder matches the shape of the cover; The cylinder body further comprises two side walls which are arranged opposite to each other, and the second lifting portion is close to one of the two side walls.

3. The feeding unit according to claim 1, characterized in that: The feeding unit further comprises a first image acquisition device for identifying the front and back sides of the cover body, and the first image acquisition device is located at the end of the manipulator.

4. The feeding unit according to any one of claims 1 to 3, characterized in that: The feeding unit further comprises a second image acquisition device which is communicatively connected to the robot arm, and the second image acquisition device is used to locate the preset position.

5. A cover snapping system, characterized in that: The invention comprises a cover-fastening unit and a feeding unit according to any one of claims 1 to 4, wherein the cover-fastening unit comprises a pressurizing device, wherein the pressurizing device comprises a first linear motion mechanism, a height sensor, and a pressing plate provided at a first telescopic portion of the first linear motion mechanism, wherein the height sensor is communicatively connected with the first linear motion mechanism, and the first linear motion mechanism is used to control the height of the pressing plate based on information from the height sensor; The pressing plate is used to press the cover body and snap it onto the opening of the box body.

6. The cover snapping system according to claim 5, characterized in that: The cover buckle unit also includes a limiting device for fixing the box body, and the limiting device includes a second linear motion mechanism and a clamping device provided on the second telescopic part of the second linear motion mechanism; The clamping device is used for clamping two opposite ends of the box body.

7. The cover snapping system according to claim 6, characterized in that: The clamping device comprises two clamping parts and a bracket arranged on the second telescopic part, and the middle parts of the two clamping parts are respectively hinged to the bracket; Each of the clamping parts has a first end and a second end opposite to each other. The first ends of the two clamping parts are connected via a third linear motion mechanism, and the second ends of the two clamping parts are respectively used to clamp the two opposite ends of the box body.

8. The cover snapping system according to claim 7, characterized in that: A shaft is fixed to the second end of each of the clamping portions; The clamping device further comprises two clamping jaws, each of which is movably connected to the corresponding shaft, and each shaft is sleeved with a torsion spring for providing elastic recovery for the corresponding clamping jaw; The clamping claw is a U-shaped structure, the openings of the two U-shaped structures are opposite to each other, and the cavity of the U-shaped structure matches the end of the box body.

9. The cover snapping system according to claim 6, characterized in that: The buckle cover unit further includes a first slide rail and a second slide rail slidably arranged on the first slide rail, and an extension direction of the first slide rail intersects with an extension direction of the second slide rail; The pressurizing device and the limiting device are both arranged on a slider, and the slider is slidably arranged on the second slide rail; The slider is in communication with the second image acquisition device, and the preset position is the position of the box body.

10. The cover snapping system according to claim 5, characterized in that: The pressing plate is a plate made of polyurethane; or, A buffer structure is arranged on the surface of the pressing plate facing the cover body, and the buffer structure includes one of a rubber pad, an air pad or a film with convex points.

Images