An automatic assembly device and assembly method for a clad drawer

Abstract

The application discloses an automatic assembling device and method for a coated drawer, and the device part comprises a component feeding module, a transfer transmission module, a coated plate processing module, a component assembling module and a discharging module, and is used for identifying different drawer specifications for processing and production. In the processing of the coated plate and the drawer panel, the bottom plate is pressed twice, and when the first pressing is performed, the pressing assembly pushes the bottom plate to one side of the coated plate to perform the pressing distance of the preliminary pressing, which is less than the length of the side baffle on the coated plate, so that the positioning edge for positioning and calibrating the embedded groove on the drawer panel is formed at the outer end of the bottom plate. At the same time, corresponding notches are formed on the drawer panel. When installation, the notches formed on the drawer panel are matched with the positioning edge to form the positioning for the installation of the drawer panel, so that the installation precision of the drawer panel is ensured.

Description

Technical Field

[0001] This invention belongs to the field of furniture processing technology, specifically relating to an automatic assembly device and method for covering drawers. Background Technology

[0002] The assembly of the drawer includes assembling the cover panel, bottom panel, and drawer front panel. During assembly, glue needs to be applied to the bent edges and bottom edge grooves of the cover panel. First, the cover panel is bent to form a U-shaped frame structure. Simultaneously, the vertical and horizontal rails on the cover panel are shaped using glue applied to the bent edges. To assemble the cover panel with the bottom panel and drawer front panel, the bottom panel needs to be inserted into the edge groove of the folded cover panel. At the same time, the drawer front panel needs to be aligned with the opening of the cover panel and pressed together to achieve a tight fit between the cover panel, bottom panel, and drawer front panel.

[0003] In existing technologies, drawer assembly mainly relies on manual labor. The process involves applying adhesive to the covering board, as well as handling and assembling the bottom plate and drawer front. This process places a significant workload on workers and makes it difficult to increase their workload.

[0004] The assembly of some drawers utilizes a semi-automated approach, combining automated equipment with manual labor. This process typically involves multiple independent machines processing different parts of the drawer, followed by assembly by workers and industrial robots. However, during processing, the assembly of the drawer panels and backing panels requires high precision to ensure the assembled drawer can be smoothly installed in its corresponding cabinet. Achieving precise installation between the drawer panels and backing panels remains a pressing issue that needs to be addressed.

[0005] Furthermore, when processing drawers of different sizes, workers need to constantly adjust the transfer position of the industrial robot. This process makes it difficult to achieve integrated automatic installation and forming between the drawer side panels, drawer tail panels, drawer bottom panels, and drawer front panels, affecting the product matching rate and restricting the product production cycle. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, the present invention provides an automatic assembly device and method for covering drawers, so as to solve the problems of precise installation between the covering board and the drawer panel, as well as the integration technology of automated drawer assembly.

[0007] To achieve the above objectives, the specific technical solution of the present invention is as follows:

[0008] In a first aspect, an automatic assembly device for covering drawers includes a component feeding module, a transfer and transmission module, a covering plate processing module, and a component assembly module.

[0009] The component loading module includes a coating plate loading unit, a base plate loading unit, and a drawer panel loading unit. The coating plate loading unit is used to input coating plates from the external production line into the transfer module. The base plate loading unit and the drawer panel loading unit are used to transport the base plate and drawer panel into the component assembly module, respectively.

[0010] The transfer module includes a loading and transfer assembly, a positioning and lifting module, and a transfer and tilting assembly. The loading and transfer assembly is used to sequentially transport the mounted covering plates to the covering plate processing module and the positioning and lifting module.

[0011] The coating plate processing module is used to apply adhesive to the edges of the coating plate. The positioning and lifting module is used to position the coating plate after the adhesive application is completed, and then to reset and lift the middle part of the coating plate after the position is determined. The transfer and flipping component is used to grab the lifted coating plate, flip it from a horizontal state to a vertical state, and transfer it to the component assembly module.

[0012] The component assembly module includes a folding processing component and a pressing component. The folding processing component is located on one side of the base plate loading unit, forming a processing station between the two units for assembling the cover plate and the base plate. The folding processing component is used to fold the side panels on both sides of the vertical cover plate inward. The pressing component is used to press the cover plate and the drawer panel, further pressing and fixing the base plate that is fitted into the slots of the cover plate and the drawer panel.

[0013] Furthermore, the folding processing assembly includes a support body, a folding drive component, and folding push plates mounted on both sides of the support body. An adsorption component is installed on the support body for adsorbing the transferred coating plate. The inner end of the folding push plate is rotatably engaged with the support body, enabling it to flip under the drive of the folding drive component.

[0014] Furthermore, there are two pressing components: a cover plate pressing component and a panel pressing component. The cover plate pressing component and the panel pressing component are respectively located on both sides of the processing station. The panel pressing component is used to sequentially push the base plate and the drawer panel towards the cover plate side. The cover plate pressing component is used to push the U-shaped frame structured cover plate towards the drawer panel side, cooperating with the panel pressing component to achieve the pressing assembly between the cover plate, the base plate, and the drawer panel.

[0015] Furthermore, the coating panel processing module includes a processing platform, a pressing cylinder, an edge glue injection assembly, and a side hole glue injection assembly. The pressing cylinder is used to press and fix the coating panel onto the processing platform. The edge glue injection assembly includes a lateral drive assembly, a longitudinal drive assembly, and multiple glue injection machines. Each glue injection machine is arranged and fixed on the moving end of the lateral drive assembly and the longitudinal drive assembly, and can move laterally and longitudinally along the processing platform under the drive of the lateral drive assembly and the longitudinal drive assembly. The side hole glue injection assembly is used to inject glue into the connecting groove on the side of the end of the coating panel.

[0016] Furthermore, the side-hole dispensing assembly includes a clamping cylinder, dispensing mounting brackets, multiple second dispensing machines, a horizontal movement component, and a position correction module. The position correction module is installed on the transport path of the coating plate to define the position of the coating plate during transport. The clamping cylinder is mounted on the frame to clamp the coating plate during transport. The two dispensing mounting brackets are slidably connected to both sides of the feeding and transporting assembly, and can move closer to or further away from the center under the drive of the horizontal movement component. Each of the second dispensing machines is sequentially arranged on one of the two dispensing mounting brackets.

[0017] Furthermore, the transfer and flipping assembly includes a connecting bracket, a gripping component, and a displacement driving component. The gripping component is mounted to the moving end of the displacement driving component via the connecting bracket, enabling it to perform lifting and vertical transfer operations under the drive of the displacement driving component. The gripping component is used to adsorb the covering plate and flip it from a horizontal state to a vertical state.

[0018] Furthermore, the gripping assembly includes a mounting bracket, a tilting drive cylinder, and multiple gripping suction cups spaced apart on the mounting bracket. The top of the mounting bracket is rotatably engaged with a connecting bracket. The tilting drive cylinder is mounted on the connecting bracket, and its main body is rotatably engaged with the connecting bracket. The outer end of the telescopic rod in the tilting drive cylinder is connected to the mounting bracket.

[0019] Furthermore, the coating plate processing module also includes a stop-piece pressing assembly. The stop-piece pressing assembly includes a vibratory feeder, a transfer table, a push drive, and a lifting pressing component. The vibratory feeder outputs the stops one by one to one side of the transfer table. The transfer table receives the stops output from the vibratory feeder and, driven by the push drive, moves between the output port of the vibratory feeder and the lifting position of the lifting pressing component. The lifting pressing component presses the stops on the transfer table into the corresponding slots on the coating plate.

[0020] Furthermore, the base plate loading unit includes a base plate transfer assembly and a positioning assembly. The base plate transfer assembly is used to transfer the base plate transported from the outside to the component assembly module. The positioning assembly is located on both sides of the input end of the base plate transfer assembly and is used to limit and correct the position of the base plate placed at the input end of the base plate transfer assembly.

[0021] Secondly, a drawer assembly method employing the automatic drawer-covering assembly device as described in the first aspect comprises the following steps:

[0022] Step 1: Loading. The coating board loading unit picks up the coating boards from the external production line and transfers them to the loading and conveying assembly. The loading and conveying assembly then transfers the coating boards to the coating board processing module.

[0023] Step 2: Apply glue. Apply glue to the folded edge and the edge groove of the surface of the covering plate through the edge glue injection assembly. Then, inject glue into the connecting groove on the side of the end of the covering plate through the side hole glue injection assembly.

[0024] Step 3: Positioning and Lifting. The positioning and lifting module defines the position of the edges and sides of the covering plate along the conveying direction. After correcting the position of the four edges of the covering plate, the middle part of the covering plate is pushed upward to restore its shape.

[0025] Step 4: Component transfer. The transfer and flipping assembly is used to grab the covering plate and switch the grabbed covering plate from a horizontal state to a vertical state.

[0026] Step 5: Positioning and Transfer. The base plate is transported to the processing station via the base plate loading unit. Subsequently, the vertically positioned covering plate is transported to the processing station by the transfer and flipping assembly.

[0027] Step 6: Folding and assembly. The folding processing component at the processing station pushes the side baffles on both sides of the covering plate to fold inward until the outer facades on both sides of the covering plate meet the folded corners at the bottom inner end.

[0028] Step 7: Preliminary pressing. The panel pressing assembly pushes the base plate towards the cover plate for preliminary pressing, so that the inner corner of the base plate is embedded in the edge groove on the cover plate. At the same time, the outer part of the base plate is exposed outside the cover plate, forming a positioning edge that facilitates the positioning and calibration of the fitting groove on the pull-out panel.

[0029] Step 8: The folding processing component drives the covering plate to fold further, so that the bottom side is completely embedded in the edge groove.

[0030] Step Nine: Secondary Pressing. The drawer panel loading unit transfers the drawer panels from the external production line to the processing station, and the installation position is determined by the positioning edge of the exposed base plate. The drawer panel loading unit maintains its gripping state on the drawer panel and pushes the drawer panel and base plate towards the cover plate side using the panel pressing assembly. The cover plate pressing assembly drives the U-shaped frame structure cover plate to press towards the drawer panel side, thereby assembling the drawer.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] 1. This invention involves pressing the base plate twice during the processing of the cover plate and the drawer panel. During the first pressing, the pressing assembly pushes the base plate towards the cover plate for an initial pressing distance less than the length of the side baffle on the cover plate. This creates a positioning edge at the outer end of the base plate for aligning and calibrating the fitting groove on the drawer panel. Simultaneously, a corresponding slot is formed on the drawer panel. During installation, the slot on the drawer panel mates with the positioning edge to position the drawer panel, ensuring installation accuracy.

[0033] 2. This invention utilizes a component loading module, a transfer and transmission module, a covering plate processing module, a component assembly module, and a unloading module to identify different drawer specifications for processing and production. The entire line operates on a fully automated production line, using robotic arms for drawer panel loading, gluing, stopper installation, drawer pressing, and robotic arm unloading. This automated design allows only one person to complete the processing of a standard drawer, significantly reducing the workload for employees. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the coating plate processing module in this invention;

[0036] Figure 3 This is a schematic diagram of the structure of the stop pressing assembly in this invention. Figure 2 (Enlarged view of part B in the middle section)

[0037] Figure 4 This is a schematic diagram of the positioning and lifting module in this invention. Figure 1 (Enlarged view of part A in the middle)

[0038] Figure 5 This is a schematic diagram showing the relative positions of the transfer and flipping component and the component assembly module in this invention;

[0039] Figure 6 This is a schematic diagram of the structure of the transfer and flipping component in this invention. Figure 5 (Enlarged view of part C in the middle)

[0040] Figure 7 This is a schematic diagram of the component assembly module in this invention. Figure 5 (Enlarged view of part D in the middle)

[0041] Figure 8 This is a schematic diagram showing the relative positions of the folding processing component and the pressing component in this invention.

[0042] Reference numerals: 1. Covering plate; 2. Base plate loading unit; 3. Component assembly module; 3-1. Folding processing component; 3-1-1. Support body; 3-1-2. Folding drive component; 3-1-3. Folding push plate; 3-2. Pressing component; 3-2-1. Pressing cylinder; 3-2-2. Pressing plate; 3-3. Adsorption component; 4. Feeding and conveying component; 5. Position correction module; 5-1. Positioning rod; 5-2. Centering limit rod; 5-3. Reset and lifting component; 6. Transfer and flipping component 6-1. Transfer Component; 6-2. Connecting Bracket; 6-3. Displacement Drive Component; 6-4. Mounting Bracket; 6-5. Tilting Drive Cylinder; 6-6. Gripping Suction Cup; 7. Coating Plate Processing Module; 7-1. Pressing Cylinder; 7-2. Edge Glue Injection Component; 7-2-1. Lateral Drive Component; 7-2-2. Longitudinal Drive Component; 7-2-3. First Glue Injector; 7-3. Stop Pressing Component; 7-3-1. Transfer Table; 7-3-2. Push Drive Component; 7-3-3. Vibrating Feeder. Detailed Implementation

[0043] In the description of this invention, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0044] The invention will now be further described with reference to the accompanying drawings.

[0045] like Figure 1 As shown, an automatic assembly device for covered drawers includes a frame, a component loading module, a transfer module, a covering plate processing module 7, a component assembly module 3, and an unloading module. The component loading module includes a covering plate loading unit, a bottom plate loading unit 2, and a drawer panel loading unit. The covering plate loading unit picks up the covering plate 1 from an external production line and transfers it to the transfer module. The transfer module drives the covering plate 1 through the covering plate processing module 7 and the component assembly module 3 for assembly. The bottom plate loading unit 2 and the drawer panel loading unit transport the bottom plate and drawer panel to the component assembly unit for assembly with the covering plate 1. The unloading module transfers and outputs the assembled drawer.

[0046] The specific structure is as follows: Figure 1As shown, the transfer module includes a loading and conveying component 4, a positioning and lifting module, and a transfer and flipping component 6. The loading and conveying component 4 employs multiple spaced conveyor belts to transport the loaded covering plate 1 to the covering plate processing module 7 for processing, and then to the positioning and lifting module after processing. The positioning and lifting module defines the position of the covering plate 1 and performs a repositioning and lifting operation.

[0047] like Figure 2 and 3 As shown, the covering panel processing module 7 includes a processing platform, a pressing cylinder 7-1, an edge glue injection assembly 7-2, a side hole glue injection assembly, and a stop pressing assembly 7-3. The pressing cylinder 7-1 is used to press and fix the covering panel 1 onto the processing platform. The edge glue injection assembly 7-2 is used to apply glue to the folded edges and surface edge grooves of the covering panel 1. When the covering panel 1 is folded or connected to the base plate, the glue application enables a connection and fixation. The side hole glue injection assembly is used to inject glue into the connecting grooves on the side of the covering panel's end. The stop pressing assembly 7-3 is used to fix a limiting stop on the covering panel 1. The limiting stop limits the outward pulling limit position when the drawer is used after assembly.

[0048] like Figure 2 As shown, the edge glue application assembly 7-2 includes a transverse drive assembly 7-2-1, a longitudinal drive assembly 7-2-2, and multiple first glue application machines 7-2-3. Each first glue application machine 7-2-3 is arranged and fixed on the moving ends of the transverse drive assembly 7-2-1 and the longitudinal drive assembly 7-2-2, and can move along the transverse and longitudinal directions of the processing platform under the drive of the transverse drive assembly 7-2-1 and the longitudinal drive assembly 7-2-2 to perform glue application operations on the folded edges and edge grooves of the surface of the covering plate 1 on the processing platform.

[0049] The side-hole dispensing assembly includes a clamping cylinder, two dispensing mounting brackets, multiple second dispensing machines, a horizontal movement component, and a position correction module. The position correction module is installed on the transport path of the coating plate to define its position. The clamping cylinder is mounted on the frame to clamp the coating plate during transport. The two dispensing mounting brackets are slidably connected to both sides of the feeding and transporting assembly 4, and can move closer to or further away from the center under the drive of the horizontal movement component.

[0050] Each of the second glue injection machines is arranged sequentially on two glue injection mounting frames. Driven by the glue injection mounting frames, they can move towards the side of the feeding and conveying assembly 4 that contains the coating plate and perform glue injection operations on each connecting groove on the coating plate.

[0051] like Figure 4As shown, in this embodiment, the position correction module 5 includes a positioning component and a reset and lifting component 5-3. The reset and lifting component 5-3 is used to reset and lift the covering plate 1 after the positioning component completes its position positioning and releases its clamping restraints. This restores the shape of the covering plate, which has undergone a slight inward deformation after being clamped by the positioning component. After the reset and lifting is completed, it works with the transfer and flipping component 6 to transfer and flip the covering plate 1. When the covering plate 1 is transferred to the component assembly module 3, it will switch from a horizontal to a vertical state, facilitating subsequent folding processing by the component assembly module 3.

[0052] The positioning assembly includes positioning rods 5-1, centering limit rods 5-2, positioning lifting components, and a limit drive assembly. Multiple positioning rods 5-1 are respectively positioned at intervals along each conveyor belt mechanism, and can be raised or lowered under the drive of the positioning lifting components to limit the position of the covering plate 1 in the conveying direction. Multiple centering limit rods 5-2 are respectively positioned on both sides of the feeding conveyor assembly 4, and can gradually move towards the center from both sides under the drive of the limit drive assembly, thereby limiting the position of the covering plate 1 on both sides.

[0053] The limit drive assembly includes a centering drive component, a drive linkage, and two transmission linkages. The centering drive component is fixed to the frame, and its power output end is connected to the middle of the drive linkage, enabling the drive linkage to rotate. The two transmission linkages are hinged to both ends of the drive linkage. The outer ends of each transmission linkage are connected to a glue-filling mounting bracket for mounting each centering limit rod 5-2.

[0054] During processing, the drive linkage rotates under the drive of the central drive component, causing the two transmission linkages to fold and converge toward the middle side. The two glue injection mounting brackets slide toward the middle side under the drive of the transmission linkages, and cause the central limiting rod 5-2 on them to converge toward the middle side, thereby achieving lateral limiting of the covering plate 1.

[0055] In this embodiment, the reset and lifting assembly 5-3 includes a lifting platform and a lifting drive. Multiple lifting platforms are distributed at intervals along the conveyor belts of the feeding and conveying assembly 4, and can be lifted as a whole under the drive of the lifting drive, thereby resetting and lifting the covering plate 1 mounted on the feeding and conveying assembly 4, ensuring that the covering plate remains horizontal when gripped by the transfer and flipping assembly 6.

[0056] like Figure 3As shown, the stopper pressing assembly 7-3 includes a vibratory feeder 7-3-3, a transfer platform 7-3-1, a push drive 7-3-2, and a lifting pressing component. The vibratory feeder 7-3-3 outputs stops one by one to the transfer platform 7-3-1. The transfer platform 7-3-1 is slidably connected to the frame, and its top surface has a receiving slot for the stops. During use, driven by the push drive 7-3-2, the transfer platform 7-3-1 moves between the output port of the vibratory feeder 7-3-3 and the lifting position of the lifting pressing component, receiving the stops output from the vibratory feeder 7-3-3 and transferring them to the position of the lifting pressing component. The lifting pressing component pushes the stops on the transfer platform 7-3-1 upwards, cooperating with the pressing cylinder 7-1 to press and fix the stops into the corresponding slots on the covering plate 1.

[0057] In this embodiment, both the pushing drive component 7-3-2 and the lifting and pressing component are telescopic cylinders. Furthermore, a clearance groove is provided at the bottom of the receiving slot on the transfer platform 7-3-1. The outer circumference of the clearance groove is smaller than that of the receiving slot. During processing, the telescopic end of the lifting and pressing component extends into the receiving slot from the clearance groove and pushes the stop within the receiving slot upwards. This, in conjunction with the pressing cylinder 7-1, presses and fixes the stop onto the covering plate 1. After processing is complete, the component is conveyed to the positioning and lifting module side via the feeding and conveying assembly 4.

[0058] In this embodiment, the positioning and lifting module and the position correction module have the same structure, and will not be described in detail here.

[0059] like Figure 5 and 6 As shown, the transfer and tilting assembly 6 includes a connecting bracket 6-1, a gripping assembly, and a displacement driving assembly 6-2. The gripping assembly is mounted on the moving end of the displacement driving assembly 6-2 via the connecting bracket 6-1, and can complete lifting and vertical transfer operations under the drive of the displacement driving assembly 6-2.

[0060] like Figure 6 As shown, the gripping assembly includes a mounting bracket 6-3, a tilting drive cylinder 6-4, and multiple gripping suction cups 6-5 spaced apart on the mounting bracket 6-3. The top of the mounting bracket 6-3 is rotatably engaged with a connecting bracket 6-1. The tilting drive cylinder 6-4 is mounted on the connecting bracket 6-1, and its main body is rotatably engaged with the connecting bracket 6-1. The outer end of the telescopic rod in the tilting drive cylinder 6-4 is connected to the mounting bracket 6-3.

[0061] In the initial state, the telescopic rod in the tilting drive cylinder 6-4 is extended, allowing the mounting bracket 6-3 to tilt downwards to its limit position. The suction ports of the gripping suction cups 6-5 mounted on the mounting bracket 6-3 face downwards, facilitating the adsorption of the covering plate 1 on the lifting platform. When the covering plate 1 is transported by the displacement drive assembly 6-2, the telescopic rod of the tilting drive cylinder 6-4 retracts inwards, thereby causing the mounting bracket 6-3 to tilt upwards to its limit position. The covering plate 1, adsorbed by the gripping suction cups 6-5, switches from a horizontal to a vertical position, facilitating the subsequent assembly and processing of the component assembly module 3.

[0062] like Figure 5 and 7 As shown, the component assembly module 3 includes a folding processing component 3-1, a base plate lifting component, and a pressing component 3-2. The folding processing component 3-1 is located on one side of the base plate loading unit 2, forming a processing station between it and the base plate loading unit 2 for assembling the covering plate 1 and the base plate. The base plate lifting component is located below the processing station and is used to lift the base plate transported to the processing station.

[0063] During processing, the base plate feeding unit 2 prioritizes conveying the base plate to the processing station, and then lifts the base plate upwards using the base plate lifting assembly to ensure that the two sides of the base plate can fit into the edge grooves on the surface of the covering plate 1. Subsequently, the vertical covering plate 1 is transferred to the processing station by the transfer and flipping assembly 6. The folding processing assembly 3-1 is used to fold the side baffles on both sides of the vertical covering plate 1 inwards, and cooperate with the back plate located in the middle of the covering plate 1 to form a U-shaped frame structure on the base plate. The pressing assembly 3-2 is used to perform the pressing operation between the covering plate 1, the base plate, and the drawing panel after the drawing panel feeding unit has completed the feeding of the drawing panel.

[0064] like Figure 7 and 8 As shown, the folding processing assembly 3-1 includes a support body 3-1-1, a folding drive component 3-1-2, and folding push plates 3-1-3 installed on both sides of the support body 3-1-1. The inner end of the folding push plate 3-1-3 is rotatably engaged with the support body 3-1-1, and can be flipped under the drive of the folding drive component 3-1-2, thereby causing the side panels on both sides of the covering plate 1 to flip, thus initially completing the processing of the drawer's outer frame.

[0065] In this embodiment, the folding drive component 3-1-2 is a telescopic cylinder. The tail end of the folding drive component 3-1-2 is rotatably engaged with the support body 3-1-1. The telescopic end of the folding drive component 3-1-2 is hinged to the outer end of the folding push plate 3-1-3. Initially, the telescopic end of the folding drive component 3-1-2 is in a retracted state, and the folding drive component 3-1-2, the support body 3-1-1, and the folding push plate 3-1-3 form a triangular structure. When the covering plate 1 is installed in place by the transfer and flipping assembly 6, the telescopic end of the folding drive component 3-1-2 gradually extends outward, driving the folding push plate 3-1-3 to flip around the rotating end, completing the flipping processing of the side baffles on both sides of the covering plate 1.

[0066] Furthermore, an adsorption assembly 3-3 is installed in the middle of the support body 3-1-1. When the transfer and flipping assembly 6 transfers the vertically positioned covering plate 1 into the folding processing assembly 3-1, it will be adsorbed by the adsorption assembly 3-3, ensuring that the position of the covering plate 1 is limited during subsequent processing. In this embodiment, the adsorption assembly 3-3 includes multiple 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.

[0067] like Figure 7 As shown, there are two pressing components 3-2: a cover plate pressing component and a panel pressing component. These components are located on opposite sides of the processing station. During processing, the panel pressing component pushes the base plate and the drawer panel towards the cover plate 1. The cover plate pressing component pushes the U-shaped frame structured cover plate 1 towards the drawer panel, working in conjunction with the panel pressing component to achieve a tight assembly between the cover plate 1, the base plate, and the drawer panel.

[0068] In this embodiment, the covering plate pressing assembly and the panel pressing assembly include two symmetrically arranged pressing cylinders 3-2-1. The telescopic ends of each pressing cylinder 3-2-1 can reciprocate in 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 to increase the contact area between the telescopic end of the pressing cylinder 3-2-1 and the covering plate 1 and the drawer panel.

[0069] In this embodiment, a limiting component is also provided at the bottom of the processing station. The limiting component is used to limit the two sides of the folded covering plate 1 to avoid positional deviation between the covering plate 1 and the base plate during processing.

[0070] The limiting assembly includes a lifting drive, a rotary cylinder, and two limiting members. The two limiting members are symmetrically arranged on both sides of the processing station and can move freely up and down under the drive of the lifting drive. The rotary cylinder drives the two limiting members to switch between a vertical and a horizontal state, thereby limiting or unlocking the position of the folded covering plate 1. Initially, the limiting members are horizontal. After the covering plate 1 is folded by the folding processing assembly 3-1, the limiting members rotate to a vertical state under the drive of the rotary cylinder and are lifted upwards by the lifting drive, thus limiting the position of the folded covering plate 1.

[0071] like Figure 1 As shown, the base plate loading unit 2 includes a base plate transfer assembly and a positioning assembly. The base plate transfer assembly is used to transfer the base plate from external transport to the component assembly module. The positioning assembly is located on both sides of the input end of the base plate transfer assembly and is used to limit and correct the position of the base plate placed at the input end of the base plate transfer assembly, preventing processing defects due to positional deviations during subsequent processing.

[0072] The positioning assembly includes multiple positioning rods and a positioning drive assembly. Each positioning rod is located on both sides of the base plate transmission assembly and can move closer to or further away from the center under the drive of the positioning drive assembly. The positioning drive assembly has the same structure as the limit drive assembly and will not be described in detail here.

[0073] In this embodiment, the base plate transmission assembly adopts a conveyor belt mechanism, which is a well-known technology and will not be described in detail here.

[0074] In this embodiment, both the covering plate loading unit and the drawer panel loading unit utilize industrial robots. When the drawer panel loading unit grasps the drawer panel, multiple wooden pegs are embedded along both sides of the drawer panel, and adhesive is applied to the drawer slot at the bottom of the drawer panel. During the pressing process between the drawer panel and the covering plate, each wooden peg is embedded into the corresponding connecting groove on the covering plate. The outer end of the base plate extends into the drawer slot on the drawer panel and is further secured using the applied adhesive.

[0075] This invention provides an automatic assembly method for covering drawers, the specific steps of which are as follows:

[0076] Step 1: The coating board loading unit picks up the coating board from the external production line and transfers it to the loading and conveying assembly. The loading and conveying assembly then transfers the coating board to the coating board processing module 7.

[0077] Step 2: The telescopic end of the pressing cylinder in the coating plate processing module 7 presses down to press and fix the coating plate on the processing platform. At the same time, the edge glue injection assembly applies glue to the folded edges and the edge grooves on the surface of the coating plate.

[0078] Step 3: The vibratory feeder outputs the stops one by one to the transfer platform, which then receives them. Driven by the push drive, the transfer platform moves from the output port of the vibratory feeder to the lifting position of the lifting and pressing component. The lifting and pressing component pushes the stops on the transfer platform upwards, cooperating with the pressing cylinder to press and fix the stops into the corresponding slots on the covering plate.

[0079] Step 4: The coating plate is transferred to the side hole glue injection assembly by the feeding and conveying assembly, and its position is defined by the positioning assembly. After the position is defined, the end of the coating plate is fixed by the clamping cylinder. At the same time, each of the second glue injection machines moves towards the feeding and conveying assembly 4 containing the coating plate under the drive of the glue injection mounting frame, and performs glue injection on the connecting grooves on the coating plate.

[0080] Step 5: The pressing cylinder releases the clamping and fixing of the covering plate. Driven by the feeding and conveying assembly, the covering plate moves towards the positioning and lifting module. When the covering plate reaches the transfer station, the positioning component in the positioning and lifting module defines the position of the covering plate in the conveying direction, as well as its positions on both sides.

[0081] Step Six: The positioning and lifting module releases the position restriction on the covering plate, pushing the center of the now-released covering plate upwards, allowing the covering plate, which had undergone a slight indentation in the center after being clamped, to regain its original shape. Subsequently, the gripping component in the transfer and flipping assembly moves to the location of the covering plate under the drive of the displacement drive component, and grips and transfers it to the upper end of the drawer assembly station.

[0082] Step 7: The base plate loading unit picks up the base plate and places it onto the conveyor belt. The positioning mechanism limits the left and right positions of the base plate. The conveyor belt starts and transports the base plate to the processing station. The base plate is then lifted upward by the base plate lifting assembly.

[0083] Step 8: The gripping suction cup in the gripping component gradually flips upward under the drive of the flipping drive cylinder, so that the covering plate adsorbed by the gripping suction cup switches from a horizontal state to a vertical state.

[0084] Step 9: The vertically positioned coating plate is transported to the processing station by the transfer and flipping component, and is adsorbed by the adsorption component on the processing station.

[0085] Step 10: The folding processing assembly at the processing station pushes the side panels on both sides of the covering plate to fold inward, cooperating with the back panel located in the middle of the covering plate to initially form a U-shaped frame structure. The inner corner at the bottom abuts against the outer facade of the side panels on both sides of the covering plate.

[0086] Step 11: The panel pressing assembly pushes the bottom plate towards the U-shaped frame structure of the covering plate and initially presses it 10mm, so that the inner corner of the bottom is embedded into the edge groove on the covering plate while the outer part of the bottom plate is exposed in the outer area of ​​the covering plate, forming a positioning edge that facilitates the positioning and calibration of the fitting groove on the pull panel.

[0087] Step 12: The folding processing component drives the covering plate to fold further, so that the bottom side is completely embedded in the edge groove.

[0088] Step 13: The drawer panel loading unit transfers the drawer panels from the external production line to the processing station, and determines the installation position using the exposed positioning edge of the base plate. The drawer panel loading unit maintains its gripping state on the drawer panel and uses the panel pressing assembly to push the drawer panel and base plate towards the cover plate side. The cover plate pressing assembly drives the U-shaped frame structure cover plate to press towards the drawer panel side, thereby assembling the drawer.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic assembly device for covering drawers, characterized in that: It includes a component loading module, a transfer module, a covering plate processing module, and a component assembly module (3); The component loading module includes a coating plate loading unit, a bottom plate loading unit (2), and a drawer panel loading unit; the coating plate loading unit is used to input the coating plate (1) from the external production line into the transfer module; the bottom plate loading unit (2) and the drawer panel loading unit are used to transport the bottom plate and the drawer panel into the component assembly module (3), respectively. The transfer module includes a feeding and transfer component (4), a positioning and lifting module, and a transfer and flipping component (6); the feeding and transfer component (4) is used to sequentially transport the loaded covering plate (1) to the covering plate processing module and the positioning and lifting module; The coating plate processing module is used to apply glue to the edge of the coating plate (1); the positioning and lifting module is used to limit the position of the coating plate after the glue application process is completed, and after the position is limited, the middle part of the coating plate (1) is reset and lifted; the transfer and flipping component (6) is used to grab the lifted coating plate (1), flip it from the horizontal state to the vertical state, and transfer it to the component assembly module (3); The component assembly module (3) includes 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 loading unit (2), forming a processing station between the base plate loading unit (2) and the base plate for assembling the covering plate (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 to further press and fix the base plate that is fitted into the groove of the covering plate (1) and the drawer panel. There are two pressing components (3-2), namely a covering plate pressing component and a panel pressing component; the covering plate pressing component and the panel pressing component are respectively set on both sides of the processing station; the panel pressing component is used to push the bottom plate and the drawer panel toward the covering plate (1) in sequence; the covering plate pressing component is used to push the covering plate (1) with a U-shaped frame structure toward the drawer panel, and cooperates with the panel pressing component to realize the pressing assembly between the covering plate (1), the bottom plate and the drawer panel; The coating plate processing module includes a processing platform, a pressing cylinder (7-1), an edge glue injection assembly (7-2), and a side hole glue injection assembly; the pressing cylinder (7-1) is used to press and fix the coating plate (1) on the processing platform; the edge glue injection assembly (7-2) includes a transverse drive assembly (7-2-1), a longitudinal drive assembly (7-2-2), and multiple glue injection machines; each glue injection machine is arranged and fixed on the moving end of the transverse drive assembly (7-2-1) and the longitudinal drive assembly (7-2-2), and can move along the transverse and longitudinal directions of the processing platform under the drive of the transverse drive assembly (7-2-1) and the longitudinal drive assembly (7-2-2); the side hole glue injection assembly is used to inject glue into the connecting groove on the side of the end of the coating plate (1); The side hole glue injection assembly includes a clamping cylinder, a glue injection mounting frame, multiple second glue injection machines, a horizontal movement assembly, and a position correction module (5); the position correction module (5) is installed on the transmission path of the coating plate to limit the position of the coating plate (1) during transmission; the clamping cylinder is installed on the frame to clamp the coating plate (1) during transmission; the two glue injection mounting frames are slidably connected to both sides of the feeding and transmission assembly (4) and can move closer to or further away from the center under the drive of the horizontal movement assembly; each of the second glue injection machines is arranged sequentially on the two glue injection mounting frames.

2. The automatic assembly device for covering a drawer according to claim 1, characterized in that: The folding processing component (3-1) includes a support body (3-1-1), a folding drive component (3-1-2), and folding push plates (3-1-3) installed on both sides of the support body (3-1-1); an adsorption component (3-3) is installed on the support body (3-1-1) for adsorbing the coated plate (1) after transfer; the inner end of the folding push plate (3-1-3) is rotatably engaged with the support body (3-1-1) and can be flipped under the drive of the folding drive component (3-1-2).

3. The automatic assembly device for covering a drawer according to claim 1, characterized in that: The transfer and flipping assembly (6) includes a connecting bracket (6-1), a gripping assembly, and a displacement driving assembly (6-2). The gripping assembly is installed on the moving end of the displacement driving assembly (6-2) through the connecting bracket (6-1) and can complete lifting and vertical transfer operations under the drive of the displacement driving assembly (6-2). The gripping assembly is used to adsorb the covering plate (1) and flip it from a horizontal state to a vertical state.

4. The automatic assembly device for covering a drawer according to claim 3, characterized in that: The gripping assembly includes a mounting bracket (6-3), a flipping drive cylinder (6-4), and a plurality of gripping suction cups (6-5) spaced apart on the mounting bracket (6-3); the top of the mounting bracket (6-3) is rotatably engaged with the connecting bracket (6-1); the flipping drive cylinder (6-4) is mounted on the connecting bracket (6-1), and the main body of the cylinder is rotatably engaged 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).

5. The automatic assembly device for covering a drawer according to claim 1, characterized in that: The coating plate processing module also includes a stop pressing assembly (7-3); the stop pressing assembly (7-3) includes a vibratory feeder (7-3-3), a transfer table (7-3-1), a push drive (7-3-2), and a lifting pressing component; the vibratory feeder (7-3-3) is used to output the stops one by one to the transfer table (7-3-1); the transfer table (7-3-1) is used to receive the stops output from the vibratory feeder (7-3-3), and under the drive of the push drive (7-3-2), it moves between the output port of the vibratory feeder (7-3-3) and the lifting position of the lifting pressing component; the lifting pressing component is used to press the stops on the transfer table (7-3-1) into the corresponding slots on the coating plate (1).

6. The automatic assembly device for covering a drawer according to claim 1, characterized in that: The base plate loading unit (2) includes a base plate transfer assembly and a positioning assembly; the base plate transfer assembly is used to transfer the base plate transferred from the outside to the component assembly module; the positioning assembly is set on both sides of the input end of the base plate transfer assembly and is used to limit and correct the position of the base plate placed at the input end of the base plate transfer assembly.

7. The drawer assembly method of the automatic assembly device for covering drawers according to claim 1, the specific steps are as follows: Step 1: Loading. The loading unit of the coating board grabs the coating board (1) from the external production line and transfers it to the loading and conveying component (4); the loading and conveying component (4) then transfers the coating board (1) to the coating board processing module. Step 2: Apply glue. Apply glue to the folded edge and the edge groove of the surface of the covering plate (1) through the edge glue injection assembly (7-2). Then, inject glue into the connecting groove on the side of the end of the covering plate (1) through the side hole glue injection assembly. Step 3: Positioning and lifting. The positioning and lifting module defines the position of the edge and two sides of the conveying direction of the covering plate (1). After the position correction of the four edges of the covering plate (1) is completed, the middle part of the covering plate (1) is pushed upward to complete the shape reset of the middle part of the covering plate (1). Step 4: Component transfer. The covering plate (1) is gripped by the transfer and flipping component (6), and the gripped covering plate (1) is switched from a horizontal state to a vertical state. Step 5: Positioning and transfer. The base plate is transported to the processing station via the base plate loading unit (2). Subsequently, the vertically positioned covering plate (1) is transported to the processing station by the transfer and flipping assembly (6). Step 6: Folding and assembly. The folding processing component (3-1) at the processing station pushes the side baffles on both sides of the covering plate (1) to fold inward until the outer facades on both sides of the covering plate (1) meet the folded corners at the bottom inner end. Step 7: Preliminary pressing. The panel pressing assembly pushes the base plate toward the side of the covering plate (1) for preliminary pressing, so that the corner of the inner end of the base plate is embedded in the edge groove on the covering plate (1); at the same time, the outer end of the base plate is exposed in the outer area of ​​the covering plate (1), forming a positioning edge that facilitates the positioning and calibration of the fitting groove on the pull panel. Step 8: Folding the processing component (3-1) drives the covering plate (1) to fold further, so that the bottom side is completely embedded in the edge groove; Step 9, Secondary pressing: The drawer panel on the external production line is transferred to the processing station by the drawer panel feeding unit, and the installation position is determined by the positioning edge of the bottom plate exposed to the outside. The drawer panel feeding unit maintains the gripping state of the drawer panel and pushes the drawer panel and bottom plate to press against the cover plate (1) side by the panel pressing assembly. The cover plate pressing assembly drives the U-shaped frame structure cover plate (1) to press against the drawer panel side, thereby realizing the assembly of the drawer.

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