Automatic assembling device and method for coated drawer

Abstract

The invention discloses an automatic assembly device and method for a coated drawer, and the device part comprises a part feeding module, a transfer transmission module, a coating plate processing module, a part assembly module and a discharging module, and is used for recognizing different drawer specifications for processing and production. In the machining process of the cladding plate and the drawing panel, the bottom plate is pressed twice, and when the bottom plate is pressed for the first time, the pressing distance that the pressing assembly pushes the bottom plate to conduct preliminary pressing on one side of the cladding plate is smaller than the length of a side baffle on the cladding plate, so that a positioning edge used for positioning and calibrating an embedding groove in the drawing panel is formed at the outer end of the bottom plate. And meanwhile, a corresponding notch is formed in the drawing panel. During installation, the notch formed in the drawing panel is matched with the positioning edge, so that positioning for installation of the drawing panel is formed, and the installation precision of the drawing panel is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of furniture processing, and particularly relates to an automatic assembly device and an assembly method for a covered drawer. Background Art

[0002] The assembly of a drawer includes the assembly of a covered board, a bottom board, and a drawer front board. During the assembly process, glue needs to be applied to several bent edges of the covered board and the edge slots at the bottom. During the assembly process, the covered board is preferably bent first to form a U-shaped frame structure. At the same time, the vertical and horizontal bars on the covered board are fixed in shape by the glue applied to the bent edges. When assembling the covered board with the bottom board and the drawer front board, the bottom board needs to be inserted into the edge slots of the folded covered board. At the same time, the drawer front board needs to be aligned with the opening of the covered board and pressed, so as to achieve a tight fit between the covered board, the bottom board, and the drawer front board.

[0003] In the prior art, the assembly of drawers mainly relies on manual operations. During the processing, it is necessary to apply glue to the covered board and carry and assemble the bottom board and the drawer front board. This process places a relatively large burden on the workers and it is difficult to increase the workload.

[0004] The assembly of some drawers is realized by a semi-automatic assembly of drawers by means of automated equipment cooperating with workers. During this process, usually multiple independent devices process each part of the drawer, and then the assembly is carried out by means of manual cooperation with an industrial robot. However, during the processing, for the assembly at the opening between the drawer front board and the covered board, in order to ensure that the assembled drawer can be smoothly installed in the corresponding cabinet, the accuracy requirement for the assembly position of the drawer front board is relatively high. How to achieve the precise installation between the drawer front board and the covered board remains an urgent problem to be solved.

[0005] In addition, when drawers of different sizes need to be processed, the staff needs to continuously adjust the transfer position of the industrial robot. This process makes it difficult to achieve an integrated automatic installation and forming among the side panels, tail panels, bottom boards, and front panels of the drawer, affecting the product matching rate and restricting the production cycle of the product. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, the present invention provides an automatic assembly device and an assembly method for a covered drawer to solve the technical problems of precise installation between the covered board and the drawer front board and the integration of drawer automatic assembly.

[0007] To achieve the above object, the specific technical solutions of the present invention are as follows: In a first aspect, an automatic assembly device for a covered drawer includes a component feeding module, a transfer and transmission module, a covered board processing module, and a component assembly module.

[0008] The component loading module includes a covering board loading unit, a bottom board loading unit, and a draw panel loading unit. The covering board loading unit is used to input the covering boards on the external production line into the transfer and transmission module. The bottom board loading unit and the draw panel loading unit are respectively used to convey the bottom board and the draw panel into the component assembly module.

[0009] The transfer and transmission module includes a loading transmission assembly, a positioning and lifting module, and a transfer and flipping assembly. The loading transmission assembly is used to sequentially convey the carried covering boards into the covering board processing module and the positioning and lifting module.

[0010] The covering board processing module is used to apply glue to the edges of the covering board. The positioning and lifting module is used to limit the position of the covering board after the glue application process, and after the position is limited, lift the middle part of the covering board back to its original position. The transfer and flipping assembly is used to grab the lifted covering board, flip it from the horizontal state to the vertical state, and transfer it to the component assembly module.

[0011] The component assembly module includes a folding processing assembly and a pressing assembly. The folding processing assembly is located on one side of the bottom board loading unit, and a processing station for assembling the covering board and the bottom board is formed between the folding processing assembly and the bottom board loading unit. The folding processing assembly is used to flip the side baffles on both sides of the vertical covering board inward. The pressing assembly is used to press the covering board and the draw panel, so as to further press and fix the bottom board embedded in the slots of the covering board and the draw panel.

[0012] Further, the folding processing assembly includes a bracket body, a folding driving member, and folding push plates installed on both sides of the bracket body. An adsorption assembly is installed on the bracket body for adsorbing the transferred covering board. The inner end of the folding push plate is rotatably matched with the bracket body and can be flipped under the drive of the folding driving member.

[0013] Further, there are two pressing assemblies, namely a covering board pressing assembly and a panel pressing assembly. The covering board pressing assembly and the panel pressing assembly are respectively arranged on both sides of the processing station. The panel pressing assembly is used to sequentially push the bottom board and the draw panel towards the covering board side. The covering board pressing assembly is used to push the U-shaped frame structure covering board towards the draw panel side, and cooperate with the panel pressing assembly to realize the pressing and assembly between the covering board, the bottom board, and the draw panel.

[0014] Further, the cladding plate processing module includes a processing platform, a downward pressing air cylinder, an edge glue injection assembly, and a side hole glue injection assembly. The downward pressing air cylinder is used to press and fix the cladding plate on the processing platform. The edge glue injection assembly includes a transverse driving assembly, a longitudinal driving assembly, and a plurality of glue injection machines. Each glue injection machine is respectively arranged and fixed on the moving ends of the transverse driving assembly and the longitudinal driving assembly, and can move along the transverse and longitudinal directions of the processing platform under the drive of the transverse driving assembly and the longitudinal driving assembly. The side hole glue injection assembly is used to inject glue into the connection groove on the side of the end of the cladding plate.

[0015] Further, the side hole glue injection assembly includes a clamping air cylinder, a glue injection mounting frame, a plurality of second glue injection machines, a horizontal moving assembly, and a position correction module. The position correction module is installed in the cladding plate loading unit and is used to define the position of the cladding plate during transmission. The clamping air cylinder is installed on the machine frame and is used to clamp the cladding plate during transmission. Two glue injection mounting frames are respectively slidably connected to both sides of the loading and transmission assembly and can move closer to or away from each other under the drive of the horizontal moving assembly. Each second glue injection machine is arranged in sequence on the two glue injection mounting frames.

[0016] Further, the transfer and flipping assembly includes a connecting bracket, a grasping assembly, and a displacement driving assembly. The grasping assembly is installed on the moving end of the displacement driving assembly through the connecting bracket and can complete lifting operations and longitudinal transfer operations under the drive of the displacement driving assembly. The grasping assembly is used to adsorb the cladding plate and flip it from a horizontal state to a vertical state.

[0017] Further, the grasping assembly includes a mounting bracket, a flipping driving air cylinder, and a plurality of grasping suction cups arranged at intervals on the mounting bracket. The top of the mounting bracket is rotationally matched with the connecting bracket. The flipping driving air cylinder is installed on the connecting bracket, and the main body part of the air cylinder is rotationally matched with the connecting bracket. The outer end of the telescopic rod in the flipping driving air cylinder is connected to the mounting bracket.

[0018] Further, the cladding plate processing module further includes a stopper pressing assembly. The stopper pressing assembly includes a vibrating feeder, a transfer table, a pushing driving member, and a top pressing member. The vibrating feeder is used to output stoppers one by one to one side of the transfer table. The transfer table is used to receive the stoppers output from the vibrating feeder and move between the output port of the vibrating feeder and the jacking position of the top pressing member under the drive of the pushing driving member. The top pressing member is used to press the stoppers on the transfer table onto the cladding plate.

[0019] Further, the bottom plate loading unit includes a bottom plate transmission assembly and a positioning assembly. Among them, the bottom plate transmission assembly is used to transfer the bottom plates transported from the outside to the component processing module. The positioning assembly is arranged on both sides of the input end of the bottom plate transmission assembly and is used to limit and correct the positions of the bottom plates placed at the input end of the bottom plate transmission assembly.

[0020] In a second aspect, a method for assembling a drawer using the automatic assembly device for a covered drawer as described in the first aspect is provided. The specific steps are as follows: Step 1: Loading. The covered board loading unit grabs the covered board on the external production line and transports it onto the loading transfer assembly. The covered board is transported to the covered board processing module through the loading transfer assembly.

[0021] Step 2: Glue application. The edge glue injection assembly applies glue to the folding edge and the edge notch on the surface of the covered board respectively. Subsequently, the side hole glue injection assembly injects glue into the connecting groove on the side surface of the end of the covered board.

[0022] Step 3: Positioning and lifting. The positioning and lifting module forms position limitations on the edge in the conveying direction of the covered board and the two side edges. After correcting the positions of the four side edges of the covered board, the clamping is released, and the middle part of the covered board is pushed upward to complete the shape reset of the middle part of the covered board.

[0023] Step 4: Component transfer. The transfer and flipping assembly grabs the covered board and switches the grabbed covered board from the horizontal state to the vertical state.

[0024] Step 5: Positioning and transfer. The bottom board loading unit transports the bottom board to the processing station. Subsequently, the covered board in the vertical state is transported to the processing station by the transfer and flipping assembly.

[0025] Step 6: Folding and assembling. The folding processing assembly on the processing station pushes the side baffles on both sides of the covered board to fold inward until the outer surfaces on both sides of the covered board abut against the fold angles at the inner end of the bottom.

[0026] Step 7: Preliminary pressing. The board surface pressing assembly pushes the bottom board to be preliminarily pressed against one side of the covered board, so that the fold angle at the inner end of the bottom board is embedded in the edge notch on the covered board. At the same time, the outer end part of the bottom board is exposed outside the covered board to form a positioning edge for facilitating the positioning and calibration of the fitting groove on the drawer panel.

[0027] Step 8: The folding processing assembly drives the covered board to further fold so that the side edges at the bottom are completely embedded in the edge notches.

[0028] Step 9: Secondary pressing. The drawer panel loading unit transports the drawer panel on the external production line to the processing station and determines the installation position through the positioning edge exposed outside the bottom board. The drawer panel loading unit maintains the grasping state of the drawer panel and drives the drawer panel and the bottom board to be pressed against one side of the covered board through the board surface pressing assembly. The covered board pressing assembly drives the U-shaped frame structure covered board to be pressed against the drawer panel, thereby realizing the assembly of the drawer.

[0029] Compared with the prior art, the present invention has the following advantages: 1. In the processing of the covering plate and the drawer panel of the present invention, the bottom plate is press-fitted in two steps. When press-fitting for the first time, the press-fitting distance that the press-fitting component pushes the bottom plate towards the covering plate for preliminary press-fitting is less than the length of the side baffle on the covering plate, so as to form a positioning edge on the outer end of the bottom plate for positioning and calibration of the fitting groove on the drawer panel. Meanwhile, corresponding notches are opened on the drawer panel. During installation, through the cooperation of the notches opened on the drawer panel and the positioning edge, the positioning of the installation of the drawer panel is formed, thereby ensuring the installation accuracy of the drawer panel.

[0030] 2. The present invention is provided with a component feeding module, a transfer and transmission module, a covering plate processing module, a component assembly module and a blanking module, which are used to identify different drawer specifications for processing and production. The whole line adopts a fully automatic production line form of feeding - gluing - stopper installation - drawer press-fitting - robotic arm blanking for the drawer panels by robotic arms. The automated design enables only one person to complete the processing of conventional drawers in the whole unit, greatly reducing the operation load of employees. Description of the Drawings

[0031] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the covering plate processing module in the present invention; Figure 3 is a schematic diagram of the structure of the stopper press-fitting component in the present invention ( Figure 2 partial enlarged view of part B in); Figure 4 is a schematic diagram of the structure of the positioning and lifting module in the present invention ( Figure 1 partial enlarged view of part A in); Figure 5 is a schematic diagram of the relative position of the transfer and flipping component and the component assembly module in the present invention; Figure 6 is a schematic diagram of the structure of the transfer and flipping component in the present invention ( Figure 5 partial enlarged view of part C in); Figure 7 is a schematic diagram of the structure of the component assembly module in the present invention ( Figure 5 partial enlarged view of part D in); Figure 8 is a schematic diagram of the relative position of the folding processing component and the press-fitting component in the present invention.

[0032] Reference numerals: 1, covering plate; 2, bottom plate feeding unit; 3, component assembly module; 3-1, folding processing assembly; 3-1-1, bracket body; 3-1-2, folding driving part; 3-1-3, folding push plate; 3-2, press-fitting assembly; 3-2-1, pressing cylinder; 3-2-2, press-fitting plate; 3-3, adsorption assembly; 4, feeding and conveying assembly; 5, position correction module; 5-1, positioning rod; 5-2, centering limit rod; 5-3, reset lifting assembly; 6, transfer and turnover assembly; 6-1, connecting bracket; 6-2, displacement driving assembly; 6-3, mounting bracket; 6-4, turnover driving cylinder; 6-5, grasping suction cup; 7, covering plate processing module; 7-1, pressing cylinder; 7-2, edge gluing assembly; 7-2-1, transverse driving assembly; 7-2-2, longitudinal driving assembly; 7-2-3, glue injector; 7-3, stopper press-fitting assembly; 7-3-1, adapter table; 7-3-2, pushing driving part; 7-3-3, vibrating feeder. Detailed implementation manners

[0033] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc. are based on the orientation or positional relationships shown in the drawings. These 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. Therefore, it should not be construed as a limitation of the present invention.

[0034] The present invention will be further described below with reference to the drawings.

[0035] As Figure 1 shown, an automatic assembly device for covering a drawer includes a frame, a component feeding module, a transfer and conveying module, a covering plate processing module 7, a component assembly module 3, and a blanking module. Among them, the component feeding module includes a covering plate feeding unit, a bottom plate feeding unit 2, and a drawer front panel feeding unit. The covering plate feeding unit is used to grab the covering plate 1 on an external production line and transfer it to the transfer and conveying module. The transfer and conveying module drives the covering plate 1 to pass through the covering plate processing module 7 and the component assembly module 3 in sequence for assembly processing. The bottom plate feeding unit 2 and the drawer front panel feeding unit are respectively used to transport the bottom plate and the drawer front panel to the component assembly unit for assembly processing with the covering plate 1. The blanking module is used to transfer and output the assembled drawer finished product.

[0036] The specific structure is as Figure 1As shown in the figure, the transfer and transmission module includes a feeding transmission component 4, a positioning and lifting module, and a transfer and flipping component 6. Among them, the feeding transmission component 4 adopts a plurality of conveyor belt mechanisms arranged at intervals, which are used to convey the coated board 1 carried thereon to the coated board processing module 7 for processing the coated board 1, and convey it to the positioning and lifting module after the processing is completed. The positioning and lifting module is used to limit the position of the coated board 1 and perform reset lifting.

[0037] As Figure 2 and 3 shown in the figure, the coated board processing module 7 includes a processing platform, a downward pressing cylinder 7-1, an edge gluing component 7-2, a side hole gluing component, and a stopper pressing component 7-3. Among them, the downward pressing cylinder 7-1 is used to press and fix the coated board 1 on the processing platform. The edge gluing component 7-2 is used to apply glue to the folding edge and the edge notch on the surface of the coated board 1 respectively. When the coated board 1 is folded and connected to the bottom plate, the connection can be fixed by the applied glue. The side hole gluing component is used to inject glue into the connection groove on the side of the end of the coated board. The stopper pressing component 7-3 is used to fix the limit stopper on the coated board 1. The limit stopper can limit the maximum position of its outward pulling when the assembled drawer is used subsequently.

[0038] As Figure 2 shown in the figure, the edge gluing component 7-2 includes a transverse driving component 7-2-1, a longitudinal driving component 7-2-2, and a plurality of first glue injectors 7-2-3. Each first glue injector 7-2-3 is respectively arranged and fixed on the moving ends of the transverse driving component 7-2-1 and the longitudinal driving component 7-2-2, and can move along the transverse and longitudinal directions of the processing platform under the drive of the transverse driving component 7-2-1 and the longitudinal driving component 7-2-2 to realize the glue application operation on the folding edge and the edge notch on the surface of the coated board 1 on the processing platform.

[0039] The side hole gluing component includes a clamping cylinder, two glue injection mounting frames, a plurality of second glue injectors, a horizontal moving component, and a position correction module. Among them, the position correction module is installed on the transmission path of the coated board to limit the position of the coated board. The clamping cylinder is installed on the frame and is used to clamp the coated board during transmission. The two glue injection mounting frames are respectively slidably connected to both sides of the feeding transmission component 4 and can move closer to or away from each other under the drive of the horizontal moving component.

[0040] Each second glue injector is arranged in sequence on the two glue injection mounting frames, and can move closer to the side of the feeding transmission component 4 loaded with the coated board under the drive of the glue injection mounting frame and perform the glue injection operation on each connection groove on the coated board.

[0041] As Figure 4As shown in the figure, in this embodiment, the position correction module 5 includes a positioning component and a reset lifting component 5-3. Among them, the reset lifting component 5-3 is used to reset and lift the covering plate 1 after the positioning component completes position positioning and releases the limit clamping. It can restore the shape of the covering plate that has a slight concave deformation towards the middle after being clamped by the second positioning component, and cooperate with the transfer and flipping component 6 to realize the transfer and flipping of the covering plate 1 after the reset lifting is completed. When the covering plate 1 is transferred to the component assembly module 3, it will be switched from the horizontal state to the vertical state, which is convenient for the component assembly module 3 to perform subsequent folding processing.

[0042] The positioning component includes positioning rods 5-1, centering limit rods 5-2, positioning lifting members, and limit driving components. Multiple positioning rods 5-1 are respectively arranged at the interval positions of each conveyor belt mechanism, and can be lifted or lowered under the drive of the positioning lifting members, and are used to limit the position of the covering plate 1 in the transmission direction. Multiple centering limit rods 5-2 are respectively arranged on both sides of the feeding transmission component 4, and can gradually move closer to the middle from both sides under the drive of the limit driving component, so as to realize the limitation of the positions on both sides of the covering plate 1.

[0043] The limit driving component includes a centering driving member, a driving connecting rod, and two transmission connecting rods. Among them, the centering driving member is fixed on the frame, and the power output end is connected to the middle part of the driving connecting rod, and can drive the driving connecting rod to rotate. The two transmission connecting rods are respectively hinged at both ends of the driving connecting rod. The outer ends of each transmission connecting rod are respectively connected to the glue injection mounting brackets for mounting each centering limit rod 5-2.

[0044] During the processing, the driving connecting rod rotates under the drive of the centering driving member, driving the two transmission connecting rods to fold and move closer to the middle side. The two glue injection mounting brackets slide towards the middle side under the drive of the transmission connecting rods, and drive the centering limit rods 5-2 thereon to move closer to the middle side, so as to realize the side limit of the covering plate 1.

[0045] In this embodiment, the reset lifting component 5-3 includes a lifting table and a lifting driving member. Among them, multiple lifting tables are respectively distributed at the interval positions of each conveyor belt mechanism in the feeding transmission component 4, and can be lifted as a whole under the drive of the lifting driving member, thereby driving the covering plate 1 carried on the feeding transmission component 4 to be reset and lifted, ensuring that the whole covering plate is in a horizontal state when being grabbed by the transfer and flipping component 6.

[0046] As Figure 3As shown in the figure, the stopper pressing and fitting assembly 7-3 includes a vibrating feeder 7-3-3, a transfer table 7-3-1, a pushing drive member 7-3-2, and a top pressing and fitting member. Among them, the vibrating feeder 7-3-3 is used to output stoppers one by one to one side of the transfer table 7-3-1. The transfer table 7-3-1 is slidably connected to the frame, and a receiving groove matching the stopper is formed on the top surface. During use, the transfer table 7-3-1 is driven by the pushing drive member 7-3-2 to move between the output port of the vibrating feeder 7-3-3 and the jacking position of the top pressing and fitting member. After receiving the stopper output from the vibrating feeder 7-3-3, it can transfer the stopper to the position where the top pressing and fitting member is located. The top pressing and fitting member is used to push the stopper on the transfer table 7-3-1 to move upward, and cooperate with the pressing cylinder 7-1 to fix the stopper by pressing it into the corresponding slot on the covering plate 1.

[0047] In this embodiment, both the pushing drive member 7-3-2 and the top pressing and fitting member adopt telescopic cylinders. Further, a relief through groove is formed at the bottom of the receiving groove on the transfer table 7-3-1. The outer dimension of the relief through groove is smaller than that of the receiving groove. During processing, the telescopic end of the top pressing and fitting member extends into the receiving groove from the relief through groove and pushes the stopper in the receiving groove to move upward, cooperating with the pressing cylinder 7-1 to fix the stopper by pressing it on the covering plate 1, and after the processing is completed, it is conveyed to one side of the positioning and lifting module through the feeding and conveying assembly 4.

[0048] In this embodiment, the positioning and lifting module has the same structure as the position correction module, which will not be elaborated here.

[0049] As Figure 5 and 6 shown in the figure, the transfer and flipping assembly 6 includes a connecting bracket 6-1, a grasping assembly, and a displacement drive assembly 6-2. Among them, the grasping assembly is installed on the moving end of the displacement drive assembly 6-2 through the connecting bracket 6-1, and can complete lifting operations and longitudinal transfer operations under the drive of the displacement drive assembly 6-2.

[0050] As Figure 6 shown in the figure, the grasping assembly includes a mounting bracket 6-3, a flipping drive cylinder 6-4, and a plurality of grasping suction cups 6-5 arranged at intervals on the mounting bracket 6-3. Among them, the top of the mounting bracket 6-3 is rotationally matched with the connecting bracket 6-1. The flipping drive cylinder 6-4 is installed on the connecting bracket 6-1, and the cylinder body part is rotationally matched with the connecting bracket 6-1. The outer end of the telescopic rod in the flipping drive cylinder 6-4 is connected to the mounting bracket 6-3.

[0051] In the initial state, the telescopic rod in the flipping drive cylinder 6-4 extends outward, enabling the mounting bracket 6-3 to flip downward to the limit position. The suction ports of the grasping suction cups 6-5 mounted on the mounting bracket 6-3 face downward, facilitating the adsorption of the covering plate 1 on the lifting table. When the covering plate 1 is transported driven by the displacement drive assembly 6-2, the telescopic rod of the flipping drive cylinder 6-4 retracts inward, thereby driving the mounting bracket 6-3 to flip upward to the limit position, and the covering plate 1 adsorbed by the grasping suction cups 6-5 switches from the horizontal state to the vertical state, facilitating the assembly and processing of the subsequent component assembly module 3.

[0052] As Figure 5 and 7 shown, the component assembly module 3 includes a folding processing component 3-1, a bottom plate lifting component, and a pressing component 3-2. Among them, the folding processing component 3-1 is located on one side of the bottom plate loading unit 2, and a processing station for the assembly between the covering plate 1 and the bottom plate is formed between the folding processing component 3-1 and the bottom plate loading unit 2. The bottom plate lifting component is arranged below the processing station and is used to lift the bottom plate transported to the processing station.

[0053] During processing, the bottom plate loading unit 2 first transports the bottom plate to the processing station and lifts the bottom plate upward through the bottom plate lifting component to ensure that the two side edges of the bottom plate can be fitted into the edge slots on the surface of the covering plate 1. Subsequently, the vertical covering plate 1 is transported to the processing station through the transfer and flipping component 6. The folding processing component 3-1 is used to fold the side baffles on both sides of the vertical covering plate 1 inward, and cooperate with the back plate part in the middle of the covering plate 1 to form a U-shaped frame structure on the bottom plate. The pressing component 3-2 is used to perform the pressing operation among the covering plate 1, the bottom plate, and the draw panel after the draw panel loading unit completes the loading of the draw panel.

[0054] As Figure 7 and 8 shown, the folding processing component 3-1 includes a bracket main body 3-1-1, a folding driving member 3-1-2, and folding push plates 3-1-3 installed on both sides of the bracket main body 3-1-1. Among them, the inner end of the folding push plate 3-1-3 is rotationally matched with the bracket main body 3-1-1 and can be flipped under the drive of the folding driving member 3-1-2, thereby driving the side baffles on both sides of the covering plate 1 to flip, and initially completing the processing of the outer frame part of the drawer.

[0055] In this embodiment, the folding driving member 3-1-2 is a telescopic cylinder. The tail end of the folding driving member 3-1-2 is rotationally engaged with the bracket main body 3-1-1. The telescopic end of the folding driving member 3-1-2 is hinged to the outer end of the folding push plate 3-1-3. Initially, the telescopic end of the folding driving member 3-1-2 is in a contracted state, and a triangular structure is formed among the folding driving member 3-1-2, the bracket main body 3-1-1, and the folding push plate 3-1-3. When the covering plate 1 is installed in place by the transfer and flipping assembly 6, the telescopic end of the folding driving member 3-1-2 gradually extends outwards, driving the folding push plate 3-1-3 to flip around the rotating end, and completing the flipping process of the side baffles on both sides of the covering plate 1.

[0056] Furthermore, an adsorption assembly 3-3 is installed in the middle of the bracket main body 3-1-1. When the transfer and flipping assembly 6 transfers the vertically placed covering plate 1 to the folding processing assembly 3-1, it will be adsorbed by the adsorption assembly 3-3 to ensure that the position of the covering plate 1 is limited during subsequent processing. In this embodiment, the adsorption assembly 3-3 includes a plurality of positioning suction cups arranged in a matrix. Each positioning suction cup can adsorb the covering plate 1 transferred by the transfer and flipping assembly 6 under the action of an external air source.

[0057] As Figure 7 shown, there are two pressing assemblies 3-2 in total, which are divided into a covering plate pressing assembly and a plate surface pressing assembly. The covering plate pressing assembly and the plate surface pressing assembly are respectively arranged on both sides of the processing station. During processing, the plate surface pressing assembly is used to sequentially push the bottom plate and the draw panel towards the side of the covering plate 1. The covering plate pressing assembly is used to push the U-shaped frame structure covering plate 1 towards the side of the draw panel, and cooperate with the plate surface pressing assembly to achieve the pressing and assembly between the covering plate 1, the bottom plate, and the draw panel.

[0058] In this embodiment, the covering plate pressing assembly and the plate surface pressing assembly include two symmetrically arranged pressing cylinders 3-2-1. The telescopic end of each pressing cylinder 3-2-1 can reciprocate along the horizontal direction. A pressing plate 3-2-2 is fixed to the outer end of the telescopic end of the pressing cylinder 3-2-1, which is used to increase the contact area between the telescopic end of the pressing cylinder 3-2-1 and the covering plate 1 and the draw panel.

[0059] In this embodiment, a limiting assembly is further arranged at the bottom of the processing station. The limiting assembly is used to limit the two side edges of the folded covering plate 1 to prevent the position deviation between the covering plate 1 and the bottom plate during the processing.

[0060] The limiting component includes a lifting driving member, a rotary cylinder, and two limiting members. Among them, the two limiting members are symmetrically arranged on both sides of the processing station and can freely lift under the drive of the lifting driving member. The rotary cylinder is used to drive the two limiting members to switch between the vertical state and the horizontal state, thereby realizing the limiting or position unlocking of the folded covering plate 1. In the initial state, the limiting members are in the horizontal state. After the covering plate 1 is folded under the drive of the folding processing component 3-1, the limiting members are rotated to the vertical state by the drive of the rotary cylinder and lifted upward by the lifting driving member, so as to limit the position of the folded covering plate 1.

[0061] As Figure 1 shown, the bottom plate feeding unit 2 includes a bottom plate conveying component and a positioning component. Among them, the bottom plate conveying component is used to convey the bottom plate transported from the outside to the component processing module. The positioning component is arranged on both sides of the input end of the bottom plate conveying component and is used to limit and correct the position of the bottom plate placed at the input end of the bottom plate conveying component to avoid processing defects due to position deviation during subsequent processing.

[0062] The positioning component includes multiple positioning rods and a positioning driving component. Each positioning rod is respectively arranged on both sides of the bottom plate conveying component and can move closer to or away from the middle under the drive of the positioning driving component. The structure of the positioning driving component is the same as that of the limiting driving component and will not be described in detail here.

[0063] In this embodiment, the bottom plate conveying component adopts a conveyor belt mechanism, which is a well-known prior art and will not be described in detail here.

[0064] In addition, in this embodiment, both the covering plate feeding unit and the drawer panel feeding unit adopt industrial robots. Among them, when the drawer panel feeding unit grabs the drawer panel, multiple wooden pins are embedded in the two side edges of the drawer panel, and glue is applied to the drawer panel slot at the bottom of the drawer panel. During the pressing process of the drawer panel and the covering plate, each wooden pin is embedded in the corresponding connection groove on the covering plate. The outer end of the bottom plate extends into the drawer panel slot on the drawer panel and is further fixed by the applied glue.

[0065] The present invention provides an automatic assembly method for a covered drawer, and the specific steps are as follows: Step 1: The covering plate feeding unit grabs the covering plate on the external production line and transfers it to the feeding transmission component. The covering plate is conveyed to the covering plate processing module 7 through the feeding transmission component.

[0066] Step 2: The telescopic end of the pressing cylinder in the covering plate processing module 7 presses down to press and fix the covering plate on the processing platform. At the same time, the edge gluing component applies glue to the folding edge and the edge slot on the surface of the covering plate respectively.

[0067] Step 3: The vibrating feeder outputs the stoppers one by one to one side of the transfer table and is received by the transfer table. Driven by the pushing drive member, the transfer table moves from the output port of the vibrating feeder and the side of the jacking and pressing member's jacking position. The jacking and pressing member pushes the stopper on the transfer table upward, and cooperates with the pressing cylinder to press and fix the stopper in the corresponding slot on the covering plate.

[0068] Step 4: Driven by the feeding and conveying assembly, the covering plate is transported to the side hole gluing assembly, and its position is limited by the positioning assembly. The covering plate with its position limited is fixed at the end by the clamping cylinder. Meanwhile, each second glue injector approaches one side of the feeding and conveying assembly 4 loaded with the covering plate driven by the glue injection mounting rack, and performs glue injection operations on each connecting groove on the covering plate.

[0069] Step 5: The pressing cylinder releases the pressing and fixing of the covering plate. Driven by the feeding and conveying assembly, the covering plate moves towards one side of the positioning and lifting module. When the covering plate moves to the transfer station, the second positioning assembly in the positioning and lifting module limits the position of the covering plate in the conveying direction and the positions on both sides.

[0070] Step 6: The positioning and lifting module releases the position limitation of the covering plate, pushes the middle part of the covering plate with its position limitation released upward, so that the covering plate that has undergone a slight concave deformation towards the middle after being clamped is restored in shape. Subsequently, the grasping component in the transfer and flipping assembly moves to the position where the covering plate is located driven by the displacement drive component, grasps it, and transfers it to the upper end of the drawer assembly station.

[0071] Step 7: The bottom plate feeding unit grabs the bottom plate onto the conveyor belt, the positioning mechanism performs left and right limiting on the bottom plate, the conveyor belt starts, transports the bottom plate to the processing station, and the bottom plate lifting assembly lifts the bottom plate upward.

[0072] Step 8: The grasping suction cup in the grasping component is gradually turned upward driven by the flipping drive cylinder, so that the covering plate adsorbed by the grasping suction cup is switched from the horizontal state to the vertical state.

[0073] Step 9: The covering plate in the vertical state is transported to the processing station driven by the transfer and flipping assembly and is adsorbed by the adsorption component on the processing station.

[0074] Step 10: The folding processing component on the processing station pushes the side baffles on both sides of the covering plate to fold inward, and cooperates with the back plate part in the middle of the covering plate to initially form a U-shaped frame structure. Among them, the inner corner at the bottom end abuts against the outer vertical surface of the side baffles on both sides of the covering plate.

[0075] Step Eleven: The panel pressing assembly pushes the bottom plate towards the covering plate of the U-shaped frame structure for a preliminary pressing of 10 mm, so that the fold at the inner end of the bottom is embedded in the edge notch on the covering plate while the outer end part of the bottom plate is exposed outside the external area of the covering plate, forming a positioning edge that facilitates the positioning and calibration of the fitting groove on the drawer front panel.

[0076] Step Twelve: The folding processing assembly drives the covering plate to fold further, so that the side edges of the bottom are completely embedded in the edge notches.

[0077] Step Thirteen: The drawer front panel feeding unit transfers the drawer front panel on the external production line to the processing station and determines the installation position through the positioning edge of the bottom plate exposed to the outside. The drawer front panel feeding unit maintains the grasping state of the drawer front panel and pushes the drawer front panel and the bottom plate towards the covering plate side through the panel pressing assembly. The covering plate pressing assembly drives the U-shaped frame structure covering plate to press towards the drawer front panel side, thereby realizing the assembly of the drawer.

[0078] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: They can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic assembly device for covering a drawer, characterized in that: It includes a component loading module, a transfer transmission module, a cladding plate processing module and a component assembly module (3); The component loading module comprises a cladding plate loading unit, a base plate loading unit (2) and a drawer plate loading unit; the cladding plate loading unit is used to input the cladding plate (1) on the external production line to the transfer module; the base plate loading unit (2) and the drawer plate loading unit are used to transport the base plate and the drawer plate to the component assembly module (3) respectively; The transfer transmission module comprises a loading transmission component (4), a positioning and lifting module and a transfer flipping component (6); the loading transmission component (4) is used to sequentially transport the carried cladding plate (1) to the cladding plate processing module and the positioning and lifting module; The cladding plate processing module is used to apply glue to the edge of the cladding plate (1); the positioning and lifting module is used to position the cladding plate that has been processed by applying glue, and after the position is limited, the middle of the cladding plate (1) is reset and lifted; the transfer and flipping assembly (6) is used to grab the lifted cladding plate (1), flip it from a horizontal state to a vertical state, and transfer it to the component assembly module (3); The component assembly module (3) comprises a folding processing component (3-1) and a pressing component (3-2); the folding processing component (3-1) is located on one side of the base plate feeding unit (2), and forms a processing station for assembling the covering plate (1) and the base plate between the folding processing component (3-1) and the base plate; the folding processing component (3-1) is used to flip and fold the side baffles on both sides of the vertical covering plate (1) inward; the pressing component (3-2) is used to press the covering plate (1) and the drawer panel, so as to further press and fix the base plate embedded in the notch of the covering plate (1) and the drawer panel.

2. The automatic assembly device for covering a drawer according to claim 1, characterized in that: The folding processing assembly (3-1) comprises a support body (3-1-1), a folding driving member (3-1-2), and folding push plates (3-1-3) mounted on both sides of the support body (3-1-1); an adsorption assembly (3-3) is mounted on the support body (3-1-1) for adsorbing the package plate (1) after transport; the inner end of the folding push plate (3-1-3) is rotatably matched with the support body (3-1-1) and can be turned over under the drive of the folding driving member (3-1-2).

3. The automatic assembly device for covering a drawer according to claim 1, characterized in that: There are two press-fitting assemblies (3-2), which are divided into a cladding plate press-fitting assembly (3-2) and a plate surface press-fitting assembly (3-2); the cladding plate press-fitting assembly (3-2) and the plate surface press-fitting assembly (3-2) are respectively arranged on both sides of the processing station; the plate surface press-fitting assembly (3-2) is used to push the bottom plate and the drawer plate toward one side of the cladding plate (1) in sequence; the cladding plate press-fitting assembly (3-2) is used to push the cladding plate (1) in a U-shaped frame structure toward one side of the drawer plate, and cooperate with the plate surface press-fitting assembly (3-2) to realize the pressing assembly between the cladding plate (1), the bottom plate and the drawer plate.

4. The automatic assembly device for covering a drawer according to claim 3, characterized in that: The cladding plate processing module comprises a processing platform, a downward pressure cylinder (7-1), an edge glue injection component (7-2) and a side hole glue injection component; the downward pressure cylinder (7-1) is used to press and fix the cladding plate (1) on the processing platform; the edge glue injection component (7-2) comprises a transverse drive component (7-2-1), a longitudinal drive component (7-2-2) and a plurality of glue injection machines (7-2-3); each glue injection machine (7-2-3) is arranged and fixed on the movable end of the transverse drive component (7-2-1) and the longitudinal drive component (7-2-2), and can move along the transverse and longitudinal directions of the processing platform under the drive of the transverse drive component (7-2-1) and the longitudinal drive component (7-2-2); the side hole glue injection component is used to inject glue into the connecting groove on the side of the end of the cladding plate (1).

5. The automatic assembly device for covering a drawer according to claim 4, characterized in that: The side hole glue injection assembly comprises a clamping cylinder, a glue injection mounting frame, a plurality of second glue injection machines (7-2-3), a horizontal moving assembly and a position correction module (5); the position correction module (5) is installed in the coating plate feeding unit and is used to limit the position of the coating plate (1) being transmitted; the clamping cylinder is installed on the frame and is used to clamp the coating plate (1) being transmitted; the two glue injection mounting frames are respectively slidably connected to the two sides of the feeding transmission assembly (4) and can move closer to or away from the middle under the drive of the horizontal moving assembly; and the second glue injection machines (7-2-3) are arranged in sequence on the two glue injection mounting frames.

6. The automatic assembly device for covering a drawer according to claim 1, characterized in that: The transfer and flipping assembly (6) comprises a connecting bracket (6-1), a grabbing assembly and a displacement drive assembly (6-2); the grabbing assembly is mounted on the movable end of the displacement drive assembly (6-2) via the connecting bracket (6-1), and can complete lifting and lowering operations and longitudinal transfer operations under the drive of the displacement drive assembly (6-2); the grabbing assembly is used to absorb the cladding plate (1) and flip it from a horizontal state to a vertical state.

7. The automatic assembly device for covering a drawer according to claim 6, characterized in that: The grabbing assembly comprises a mounting bracket (6-3), a flip driving cylinder (6-4), and a plurality of grabbing suction cups (6-5) arranged at intervals on the mounting bracket (6-3); the top of the mounting bracket (6-3) is rotationally matched with the connecting bracket (6-1); the flip driving cylinder (6-4) is mounted on the connecting bracket (6-1), and the main body of the cylinder is rotationally matched with the connecting bracket (6-1); and the outer end of the telescopic rod in the flip driving cylinder (6-4) is connected to the mounting bracket (6-3).

8. The automatic assembly device for covering a drawer according to claim 1, characterized in that: The cladding plate processing module also includes a baffle pressing assembly (7-3); the baffle pressing assembly (7-3) includes a vibrating loader (7-3-3), a transfer table (7-3-1), a push drive component (7-3-2) and a lifting and pressing component; the vibrating loader (7-3-3) is used to output baffles one by one to one side of the transfer table (7-3-1); the transfer table (7-3-1) is used to receive baffles output from the vibrating loader (7-3-3) and, driven by the push drive component (7-3-2), move between the output port of the vibrating loader (7-3-3) and the lifting position of the lifting and pressing component; the lifting and pressing component is used to press the baffles on the transfer table (7-3-1) onto the cladding plate (1).

9. The automatic assembly device for covering a drawer according to claim 1, characterized in that: The bottom plate feeding unit (2) comprises a bottom plate transmission component and a positioning component; the bottom plate transmission component is used to transfer the bottom plate transferred from the outside to the component processing module; the positioning component is arranged on both sides of the input end of the bottom plate transmission component, and is used to limit and correct the position of the bottom plate placed at the input end of the bottom plate transmission component.

10. The drawer assembly method of the automatic assembly device for covering drawers according to claim 5, characterized in that: The specific steps are as follows: Step 1: Loading: the cladding plate loading unit grabs the cladding plate (1) on the external production line and transfers it to the loading transmission component (4); the cladding plate (1) is transferred to the cladding plate processing module through the loading transmission component (4); Step 2: Glue application: glue is applied to the folded edge and the edge notch of the surface of the covering plate (1) by means of the edge glue injection component (7-2), and then the side hole glue injection component injects glue into the connection groove on the side of the end of the covering plate (1); Step 3: Positioning and lifting: the edges of the cladding plate (1) in the conveying direction and the edges on both sides are positioned by means of a positioning and lifting module; after the position correction of the edges on all sides of the cladding plate (1) is completed, the clamping is released, and the middle of the cladding plate (1) is pushed upward and lifted, so as to complete the shape restoration of the middle of the cladding plate (1); Step 4: Component transfer: grab the covering plate (1) by using the transfer flip assembly (6), and switch the grabbed covering plate (1) from a horizontal state to a vertical state; Step 5: Positioning and transporting: the bottom plate is transported to the processing station through the bottom plate loading unit (2); then, the vertically positioned cladding plate (1) is transported to the processing station by the transport flip assembly (6); Step 6: Folding and assembling, the folding processing assembly (3-1) on the processing station pushes the side baffles on both sides of the covering plate (1) to fold inwards until the outer facades on both sides of the covering plate (1) abut against the folded corners of the inner end of the bottom; Step 7: Preliminary pressing: the panel pressing assembly (3-2) pushes the bottom panel toward one side of the covering panel (1) for preliminary pressing, so that the inner corner of the bottom panel is embedded in the edge groove on the covering panel (1); at the same time, the outer end of the bottom panel is partially exposed outside the outer area of ​​the covering panel (1), forming a positioning edge that is convenient for positioning and calibrating the engaging groove on the draw panel; Step 8: The folding processing assembly (3-1) drives the covering plate (1) to further fold, so that the side edge of the bottom is completely embedded in the edge groove; Step nine, secondary press-fitting, the drawer panel on the external production line is transferred to the processing station through the drawer panel loading unit, and the installation position is determined by the positioning edge of the bottom plate exposed to the outside; the drawer panel loading unit maintains the gripping state of the drawer panel, and pushes the drawer panel and the bottom plate to press together the side of the covering plate (1) through the panel pressing component (3-2); the covering plate pressing component (3-2) drives the U-shaped frame structure covering plate (1) to press together the side of the drawer panel, thereby realizing the assembly of the drawer.

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