A flexible CNC production line and processing method for panel furniture

Abstract

The present invention discloses a flexible CNC production line and processing method for panel furniture, comprising an automatic loader, a drilling and milling processing center for milling edges and / or drilling holes on a panel, a first conveying platform, an automatic panel turning machine, a second conveying platform, a third conveying platform, a panel processing center for carving and / or grooving the front side of the panel, and an automatic unloading mechanism; the panel is placed on the automatic loader, loaded to the drilling and milling processing center, the first side of the panel is milled and / or drilled, and output to the first conveying platform, the automatic panel turning machine turns over the panel whose first side has been processed and places it on the second conveying platform, the panel is transported along the second conveying platform to a position corresponding to the third conveying platform, is sent to the third conveying platform, and then enters the panel processing center to carve and / or groove the second side of the panel, and after the second side processing is completed, the panel is output from the automatic unloading mechanism; the panel integrates drilling, carving, and grooving as one, and has a small number of equipment, reduced equipment cost, high equipment utilization rate, and high processing efficiency.

Description

Technical Field

[0001] The present invention relates to the field of panel furniture production line technology of woodworking machinery, and in particular to a flexible CNC production line and processing method for panel furniture, which is mainly but not limited to grooving, carving, drilling and other processing of large-board panel furniture, especially door panels. Background Art

[0002] The processing of panel furniture, especially door panels, requires carving, drilling, grooving, etc. Both sides of the panel need to be processed, and the processing requirements of the two sides of the panel are different, and the processing time is also quite different. For example, the back of the panel generally only needs to be drilled, while the front of the panel requires carving, drilling, grooving, etc.

[0003] Existing processing equipment for panel furniture, especially door panels, generally adopts CNC equipment with only one main machine, which usually includes a loader, a machining center and a unloader. Through the coordinated arrangement of the loader, the machining center and the unloader, although it can automatically complete the loading, automatic coding, milling, drilling, grooving, unloading and other processes in sequence, but because there is only one machining center working alone, the processing efficiency is still relatively low; and a machining center can only process one pattern at a time. If different patterns are required, not only the program needs to be readjusted, but the processing also needs to reposition and find the origin. In addition, a single machining center needs to manually turn the door panel, which affects production efficiency. For example: if a single machine processes 9 small boards from a piece of plate, the drilling time is about 2 minutes, the milling time is 1 minute, then the carving time (according to the simplest pattern) is about 13 minutes, the grooving time is about 5 minutes, and the time required for tool changing, repositioning, manual turning over, and re-adjusting the program is about 5 minutes, then the processing time of a plate is about 26 minutes. After the processing is completed, the time for unloading and re-feeding is about 3 minutes, that is, the waiting time for the next plate is 29 minutes.

[0004] Later, a flexible CNC production line for panel furniture appeared, which included an automatic labeling machine, an automatic tool changing processing center, a loading conveyor line, a hole processing center, a flipping mechanism, a door panel processing center one, a discharging line one, a unloading conveyor line, a discharging line two, a door panel processing center two, a door panel processing center three and a discharging line three. The automatic labeling machine and the automatic tool changing processing center are both arranged at the left end of the loading conveyor line, and the automatic labeling machine is located at the lower side of the automatic tool changing processing center, the hole processing center is arranged on the left side of the loading conveyor line, the door panel processing center one, the door panel processing center two and the door panel processing center three are equidistantly arranged beside the loading conveyor line, and a flipping mechanism is provided between the middle plate processing of the door panel processing and the door panel processing center three and the loading conveyor line, the door panel processing center one is connected to the unloading conveyor line through the discharging line one, the door panel processing center two is connected to the unloading conveyor line through the discharging line two, the door panel processing center three is connected to the unloading conveyor line through the discharging line three, and a manual unloading area is provided at the bottom of the unloading conveyor line. The manual unloading area is provided with a pneumatic baffle mechanism. Although the efficiency of this flexible CNC production line for panel furniture is improved by connecting one hole processing center to three door panel processing centers, an automatic tool change processing center and a feeding conveyor line are also connected between the automatic labeling machine and the hole processing center, and a flip mechanism is provided between the door panel processing center 1, the door panel processing center 2 and the door panel processing center 3 and the feeding conveyor line, which has a complex structure and greatly increases the equipment cost.

[0005] Therefore, it is necessary to develop a new technical solution to solve the above problems. Summary of the invention

[0006] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a flexible CNC production line and processing method for panel furniture, which integrates drilling, carving, and grooving and has a small number of equipment, reduced equipment cost, high equipment utilization rate, and high processing efficiency.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A flexible CNC production line for panel furniture, comprising an automatic feeder, a drilling and milling processing center for milling edges and / or drilling holes on panels, a first conveyor platform, an automatic panel turning machine, a second conveyor platform, a third conveyor platform, a panel processing center for carving and / or grooving the front of the panels, and an automatic unloading mechanism; wherein:

[0009] The first conveyor platform is arranged in a conveying manner along the X-axis direction; the automatic feeder, the drilling and milling processing center for milling and / or drilling the plate, and the first conveyor platform are arranged in sequence along the X-axis direction to form a drilling and milling processing production line for milling and / or drilling;

[0010] The second conveying platform is arranged in a conveying manner along the Y-axis;

[0011] The automatic plate turning machine is connected between the first conveying platform and the second conveying platform to turn over the plate on the first conveying platform and place it on the second conveying platform;

[0012] The third conveyor is arranged in a conveying manner along the X-axis, and the third conveyor, the plate processing center, and the automatic unloading mechanism are arranged in sequence along the X-axis to form a plate processing production line for carving and / or grooving; the plate processing production line is provided with more than two groups, which are respectively connected to the same side of the second conveyor through their respective third conveyors and are arranged at intervals along the Y-axis;

[0013] The plate is placed on the automatic loader and then loaded into the drilling and milling processing center. The first side of the plate is milled and / or drilled, and then output to the first conveyor table. The automatic plate flipping machine flips the plate with the processed first side over and places it on the second conveyor table. The plate is transported along the second conveyor table to the position corresponding to the third conveyor table, and then sent to the third conveyor table, and then enters the plate processing center to perform carving and / or grooving on the second side of the plate. After the second side processing is completed, the plate is output from the automatic unloading mechanism.

[0014] As a preferred solution, a scanning device is provided at the process position before the automatic plate turning machine to scan the plate and allocate the plate to the corresponding plate processing production line for processing.

[0015] As a preferred solution, a labeling machine is provided at the automatic feeding machine to label the plates with a QR code.

[0016] As a preferred solution, the automatic plate flipping machine has a flipping robot that can rotate around the X-axis; in the initial state, the flipping robot is located below the conveying surface of the first conveyor platform. After the plate is delivered to the first conveyor platform, the plate is adsorbed on the flipping robot, and the flipping robot flips upward toward the second conveyor platform until the plate is located on the second conveyor platform. The flipping robot releases the adsorption of the plate and flips back to reset below the conveying surface of the first conveyor platform.

[0017] As a preferred solution, the automatic flipping machine also includes a flipping frame and a rotating drive component installed on the flipping frame, and the flipping robot is controlled by the rotating drive component to flip; the flipping robot includes a rotating cross bar and a suction cup mounting rod installed on the rotating cross bar, the rotating cross bar extends along the X-axis direction, and its two ends are rotatably mounted on the flipping frame, and the motor drives the rotating cross bar to flip around its own axis; the suction cup mounting rod extends along the Y-axis direction, and the suction cup mounting rod is provided with a suction cup.

[0018] As a preferred solution, the automatic loader, drilling and milling processing center, the first conveyor platform, the automatic panel turning machine, the second conveyor platform, the third conveyor platform, the panel processing center, and the automatic unloading mechanism are each an independent device, which are arranged in sequence to form a flexible CNC production line for panel furniture.

[0019] As a preferred solution, the automatic loader, the drilling and milling processing center, the first conveyor platform, the automatic plate flipping machine, the second conveyor platform, the third conveyor platform, the plate processing center, and the automatic unloading mechanism are connected to each other while maintaining a set distance between each other.

[0020] As a preferred solution, a pushing mechanism is provided on the second conveying platform corresponding to each third conveying platform to push the plate on the second conveying platform to the corresponding third conveying platform.

[0021] A processing method for a flexible CNC production line for panel furniture comprises the following steps: sending a panel to a drilling and milling processing center along the X-axis direction to perform edge milling and / or drilling on the first side of the panel; after the processing is completed, sending the panel to a first conveyor platform; using an automatic panel turning machine to turn the panel on the first conveyor platform over and send it to a second conveyor platform; the second conveyor platform sends the panel to a plurality of corresponding third conveyor platforms respectively; the panels then enter a panel processing center respectively to perform carving and / or grooving on the front side of the panel; after the front side processing is completed, the panels are output from respective automatic unloading mechanisms.

[0022] As a preferred solution, before turning over the plate, the plate is scanned and identified, so that the plate on the second conveyor table after turning over can be sent to a different third conveyor table according to the identification result, so as to be processed in the corresponding plate processing center.

[0023] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly forms a flexible CNC production line for panel furniture through the arrangement of an automatic loader, a drilling and milling processing center for milling and / or drilling plates, a first conveyor platform, an automatic panel flipping machine, a second conveyor platform, a third conveyor platform, a plate processing center for carving and / or grooving the front of the plate, and an automatic unloading mechanism. The production line integrates drilling, carving, and grooving and has a small number of equipment, reduced equipment cost, and high equipment utilization rate. One drilling and milling processing center is used for milling and drilling, and multiple plate processing centers are combined and used for carving and grooving. In this way, through combined production and integration of processing steps, one process is closely connected with the next process, shortening the entire waiting, debugging, program change, and tool change time, effectively improving production efficiency, and at the same time, the entire processing process is automated processing with a high degree of automation, which is conducive to intelligent production and processing management.

[0024] In addition, the flexible CNC production line for panel furniture of the present invention is suitable for processing a variety of panels and has strong versatility, especially for door panel processing. Even for different door types, there are roughly the same processing steps on the back (such as gusset plates), and they all have the characteristics of few processing holes, so a drilling and milling processing production line is used for processing the back. A scanning device can be set to scan the panels and assign the panels to corresponding carved and / or grooved panel processing centers for processing. At this time, the front side can process panels of the same or different shapes. Because the carving patterns are different and the groove sizes are different, the processing time is also different, and different processing needs can be met in different panel processing centers.

[0025] In order to more clearly illustrate the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional diagram showing the overall structure of a flexible CNC production line for panel furniture according to an embodiment of the present invention;

[0027] Figure 2 It is a three-dimensional diagram of an automatic loading machine according to an embodiment of the present invention;

[0028] Figure 3 It is a first assembly diagram of a drilling and milling machining center or a plate machining center according to an embodiment of the present invention;

[0029] Figure 4 is a second assembly diagram of a drilling and milling machining center or a plate machining center according to an embodiment of the present invention;

[0030] Figure 5 is a first exploded view of a drilling and milling machining center or a plate machining center according to an embodiment of the present invention;

[0031] Figure 6 is a second exploded view of a drilling and milling machining center or a plate machining center according to an embodiment of the present invention;

[0032] Figure 7 It is an assembly diagram of the automatic panel turning machine according to an embodiment of the present invention;

[0033] Figure 8 1 is an exploded view of an automatic panel turning machine according to an embodiment of the present invention;

[0034] Fig. 9 It is a schematic diagram of the arrangement structure of the first conveying platform, the automatic plate turning machine, and the second conveying platform according to an embodiment of the present invention;

[0035] Fig.10 It is a diagram showing the steps of a processing method for a flexible CNC production line for panel furniture according to an embodiment of the present invention.

[0036] Description of the accompanying drawings:

[0037] Automatic loader 1 Loader rack 101

[0038] Hydraulic lifting platform 102 Drilling and milling processing center 2

[0039] Loading robot 201 Pushing rack 202

[0040] First conveyor 3 Automatic plate turning machine 4

[0041] Flip frame 401 Rotation drive assembly 402

[0042] Flip robot 403 motor 404

[0043] Rotating crossbar 405 Suction cup mounting rod 406

[0044] Suction cup 407 Second conveyor 5

[0045] The third conveyor 6 plate processing center 7

[0046] Automatic unloading mechanism 8. DETAILED DESCRIPTION

[0047] Please refer to Figures 1 to 10 As shown, it shows the specific structure and processing method of an embodiment of the present invention.

[0048] First, please refer to Figure 1 As shown, a flexible CNC production line for panel furniture includes an automatic feeder 1, a drilling and milling processing center 2 for milling edges and / or drilling holes on the panel, a first conveyor 3, an automatic panel turning machine 4, a second conveyor 5, a third conveyor 6, a panel processing center 7 for carving and / or grooving the front of the panel, and an automatic unloading mechanism 8; wherein:

[0049] The first conveyor platform 3 is arranged in a conveying manner along the X-axis direction; the automatic feeder 1, the drilling and milling processing center 2 for milling and / or drilling the plate, and the first conveyor platform 3 are arranged in sequence along the X-axis direction to form a drilling and milling processing production line for milling and / or drilling;

[0050] The second conveying platform 5 is arranged in a conveying manner along the Y-axis direction;

[0051] The automatic plate turning machine 4 is connected between the first conveying platform 3 and the second conveying platform 5 to turn over the plate on the first conveying platform 3 and place it on the second conveying platform 5;

[0052] The third conveyor 6 is arranged in a conveying manner along the X-axis direction. The third conveyor 6, the plate processing center 7, and the automatic unloading mechanism 8 are arranged in sequence along the X-axis direction to form a carved and / or slotted plate processing production line; the carved and / or slotted plate processing production line is provided with more than two groups, and three groups in this embodiment. The actual number of settings can be flexibly set according to the actual processing conditions of the back and front of the plate to be processed; the carved and / or slotted plate processing production lines are connected to the same side of the second conveyor 5 through their respective third conveyor 6, and are arranged at intervals along the Y-axis direction;

[0053] The plate is placed on the automatic loader 1 and loaded to the drilling and milling processing center 2, and the back of the plate is processed, for example: the plate is milled and / or drilled, and usually the back of the plate needs to be drilled and trimmed; then it is output to the first conveyor table 3, and the automatic flip machine 4 turns the plate with the processed back over and places it on the second conveyor table 5. At this time, the front of the plate is set facing up; the plate with the front facing up is transported along the second conveyor table 5 to the position corresponding to the third conveyor table 6, and is pushed onto the third conveyor table 6, and then enters the plate processing center 7 to perform carving and / or grooving on the front of the plate. After the front processing is completed, the plate is output from the automatic unloading mechanism 8.

[0054] The plate is transported from the second conveyor platform 5 to the corresponding plate processing center 7 via the third conveyor platform 6 for processing. Because the processing time for the back of the plate is relatively short and the processing time for the front is relatively long, efficiency matching is performed to improve the overall production efficiency.

[0055] Usually, even if the door panels are of different types, the back side has roughly the same processing steps (such as gussets), and all have the characteristics of fewer processing holes. Therefore, a drilling and milling processing production line is used to process the back side, and a code scanning device can be set to scan the board and assign the board to the corresponding carved and / or slotted board processing production line for processing. At this time, the front side can process boards of the same or different shapes. Therefore, the automatic unloading mechanism 8 can produce boards of the same shape, or boards of different shapes, which not only improves production efficiency, but also achieves the effect of one machine for multiple uses. The code scanning device is usually set in the process position before the automatic panel turning machine 4, so that the electronic control part has enough time to react and control the distribution of the board to the corresponding carved and / or slotted board processing production line.

[0056] like Figures 2 to 6As shown, the automatic feeder 1 includes a feeder frame 101 and a hydraulic lifting platform 102; under normal circumstances, the hydraulic lifting platform 102 is full of plates, and the feeding manipulator 201 of the drilling and milling processing center 2 moves the top plate from the hydraulic lifting platform 102 to the drilling and milling processing center 2; the plate can be labeled (barcode, QR code, etc.) before entering the automatic feeder 1, or a labeling machine can be set at the automatic feeder 1 to label the plate with a QR code, etc. The feeding manipulator 201 is provided with a suction cup, which moves downward under the drive of the feeding cylinder, and the suction cup sucks the plate and moves upward together. After it is in place, the feeding manipulator 201 translates along the X direction to drive the plate to the processing table of the drilling and milling processing center 2. In the specific design, the plate can be positioned with a positioning bar first, and then the vacuum pump can be started to draw a vacuum at the bottom of the plate. After the plate is firmly adsorbed on the processing table, the positioning cylinders at the back and sides return to complete the positioning, and the drilling and milling processing center 2 mills and drills the plate. Then, the pusher rack moves down to below the plane of the plate and pushes the plate to the first conveyor table 3. It should be noted that the specific structure of the drilling and milling processing center 2 is not limited, and it only needs to be able to automatically complete the drilling and milling processing of the plate. Similarly, the specific structure of the plate processing center 7 is not limited, and it only needs to be able to automatically complete the front carving and / or grooving of the plate.

[0057] Combination Figure 1 , Figures 7 to 9 As shown, it mainly shows the setting of the automatic panel turning machine 4.

[0058] The automatic flipping machine 4 includes a flipping frame 401, a rotating drive component 402 installed on the flipping frame 401, and a flipping manipulator 403 controlled by the rotating drive component 402 for flipping, the rotating drive component 402 includes a motor 404, and the motor 404 drives the flipping manipulator 403 through a sprocket and a chain; the flipping manipulator 403 includes a rotating cross bar 405 and a plurality of suction cup mounting rods 406 mounted on the rotating cross bar 405, the rotating cross bar 405 is extended along the X-axis, and its two ends are rotatably mounted on the flipping frame 401, and the motor 404 drives the rotating cross bar 405 to flip around its own axis; the suction cup mounting rod 406 is extended along the Y-axis, and a plurality of suction cup mounting rods 406 are arranged at intervals along the X-axis on the rotating cross bar 405, and each suction cup mounting rod 406 is provided with more than two suction cups 407 at intervals along the Y-axis. In the initial state, the flipping manipulator 403 is located below the conveying surface of the first conveying platform 3. The first conveying platform 3 is usually designed as a roller conveying structure. The suction cup mounting rod 406 can be located in the gap between adjacent rollers. At this time, the suction cup 407 is set upward. After the push rack pushes the plate to the first conveying platform 3, the plate is adsorbed on the suction cup 407, and the motor 404 controls the flipping manipulator 403 to flip upward toward the second conveying platform 5 (generally flipped 180 degrees) until the plate is located on the second conveying platform 5. The flipping manipulator 403 releases the adsorption of the plate and flips back to reset below the conveying surface of the first conveying platform 3.

[0059] from Figure 1 and Fig. 9 It can be seen that the automatic loader 1, the drilling and milling processing center 2, the first conveying platform 3, the automatic panel turning machine 4, the second conveying platform 5, the third conveying platform 6, the plate processing center 7, and the automatic unloading mechanism 8 may not have any connecting mechanism in sequence. When in use, they can be aligned and connected by keeping a certain distance between them. Therefore, the flexible CNC production line for panel furniture of the present invention can be assembled by the original automatic loader 1, the drilling and milling processing center 2, the plate processing center 7, the automatic unloading mechanism 8 and the corresponding conveying platforms. For the equipment manufacturing company, it does not need to be completely designed and produced. Most of the equipment or devices that have been in mass production can be partially improved and assembled. Corresponding changes can be made in the design of electrical control. The production design cost is better controlled, and this kind of flexible CNC production line for panel furniture can also be quickly put on the market for application. Furthermore, for board processing manufacturers, they can purchase some equipment or devices, and assemble them on their own existing equipment to form this type of flexible CNC production line for panel furniture, so as to better meet production and processing needs and improve production efficiency. There is no need to purchase the entire flexible CNC production line for panel furniture, which can effectively reduce the equipment purchase cost of board processing manufacturers; therefore, the flexible CNC production line for panel furniture of the present invention has a wide range of applications.

[0060] Next, please refer to Fig.10 As shown, a processing method for a flexible CNC production line of panel furniture is shown, wherein the plate is sent to the drilling and milling processing center 2 along the X-axis direction to perform milling and / or drilling on the first surface of the plate. After the processing is completed, it is sent to the first conveyor table 3, and the plate on the first conveyor table 3 is turned over by the automatic panel turning machine 4 and sent to the second conveyor table 5. The second conveyor table 5 sends the plate to the corresponding multiple third conveyor tables 6 respectively, and then enters the panel processing center 7 to perform carving and / or grooving on the front of the plate. After the front processing is completed, the plate is output from the respective automatic unloading mechanism 8. Preferably, before turning the plate, the plate is scanned and identified, so that the plate on the second conveyor table 5 after turning the plate is sent to different third conveyor tables 6 according to the identification result, and the front is carved and / or grooved in the panel processing center 7, and the processing shapes are the same or different.

[0061] Fig.10 The storage platform shown in is a lifting platform, such as the hydraulic lifting platform 102 referred to in this embodiment. The plate generally refers to a large plate such as a door plate, and the front and back sides may also refer to two opposite first and second sides of the plate. The processing order of the first and second sides is not limited. Usually, the side processed in the drilling and milling processing center 2 is a relatively short-time side, while the side processed in the plate processing center 7 is a relatively long-time side. The automatic loading machine and the automatic unloading machine are not limited to the structure shown in this embodiment.

[0062] In this embodiment, the entire flexible CNC production line for panel furniture is CNC automated, and the automatic loader 1, the drilling and milling processing center 2 for milling edges and / or drilling holes in the panel, the first conveyor platform 3, the automatic panel turning machine 4, the second conveyor platform 5, the third conveyor platform 6, the panel processing center 7 for carving and / or grooving the front of the panel, and the automatic unloading mechanism 8 are all connected to the control system, so that the entire processing process is automated and the production line has a high degree of automation.

[0063] To sum up, the design focus of the present invention is that it mainly forms a flexible CNC production line for panel furniture through the arrangement of an automatic loader, a drilling and milling processing center for milling and / or drilling plates, a first conveyor platform, an automatic panel flipping machine, a second conveyor platform, a third conveyor platform, a plate processing center for carving and / or grooving the front of the plate, and an automatic unloading mechanism. The production line integrates drilling, carving, and grooving and has a small number of equipment, reduced equipment cost, and high equipment utilization rate. One drilling and milling processing center is used for milling and drilling, and multiple plate processing centers are combined and used for carving and grooving. In this way, through combined production and integration of processing steps, one process is closely connected with the next process, shortening the entire waiting, debugging, program change, and tool changing time, effectively improving production efficiency, and at the same time, the entire processing process is automated processing with a high degree of automation, which is conducive to intelligent production and processing management.

[0064] In addition, the flexible CNC production line for panel furniture of the present invention is suitable for processing a variety of panels and has strong versatility, especially for door panel processing. Even for different door types, there are roughly the same processing steps on the back (such as gusset plates), and they all have the characteristics of few processing holes, so a drilling and milling processing production line is used for processing the back. A scanning device can be set to scan the panels and assign the panels to corresponding carved and / or grooved panel processing centers for processing. At this time, the front side can process panels of the same or different shapes. Because the carving patterns are different and the groove sizes are different, the processing time is also different, and different processing needs can be met in different panel processing centers.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A flexible CNC production line for panel furniture, characterized by: It is used to process the back and front of the door panel. The back processing time of the door panel is relatively short, while the front processing time of the door panel is relatively long. It includes an automatic loader which is an independent device, a drilling and milling processing center for milling and drilling the back of the door panel, a first conveyor, an automatic panel turning machine, a second conveyor, more than two third conveyor, more than two plate processing centers for carving and / or grooving the front of the door panel, more than two automatic unloading mechanisms, and no mechanism is connected between them; the automatic loader includes a loader frame and a hydraulic lifting platform; the drilling and milling processing center is provided with a loading manipulator, and the loading manipulator is provided with a suction cup, and the suction cup moves downward under the drive of the loading cylinder; the first conveyor is arranged in a conveying manner along the X-axis; the automatic panel turning machine The machine has a flip manipulator that can rotate around the X-axis, a flip frame, and a rotation drive component installed on the flip frame. The flip manipulator is controlled by the rotation drive component to flip. The flip manipulator includes a rotating cross bar and a suction cup mounting rod installed on the rotating cross bar. The rotating cross bar is extended along the X-axis, and its two ends are rotatably installed on the flip frame. The rotation drive component includes a motor, and the motor drives the rotating cross bar to flip around its own axis; the suction cup mounting rod is extended along the Y-axis, and the suction cup mounting rod is provided with a suction cup; the second conveying platform is arranged in a conveying manner along the Y-axis, and the third conveying platform is arranged in a conveying manner along the X-axis; The automatic loader, the drilling and milling processing center for milling and drilling the back of the door panel, and the first conveyor table are arranged in sequence along the X-axis direction, aligned and connected at a set distance to form a drilling and milling processing production line for milling and drilling the back of the door panel; and a labeling machine is arranged at the automatic loader to affix a QR code mark to the door panel, so that the door panel can be scanned and identified before being turned over, so that the control system has enough time to react and control the door panel to be allocated to the corresponding panel processing production line for processing; the second conveyor table is arranged beside the first conveyor table, aligned and connected at a set distance, and the automatic panel turning machine is arranged between the second conveyor table and the first conveyor table to turn over the door panel on the first conveyor table and place it on the second conveyor table; the third conveyor table, the panel processing center, and the automatic unloading mechanism are arranged in sequence along the X-axis direction, aligned and connected at a set distance to form a connection. The two conveyors are connected at a certain distance to form a plate processing production line for carving and / or grooving the front of the door panel. In this way, more than two groups of plate processing production lines are set, which are connected to the same side of the second conveyor platform through their respective third conveyor platforms and are arranged at intervals along the Y axis; and a pushing mechanism is set on the second conveyor platform corresponding to each third conveyor platform to push the door panel on the second conveyor platform to the corresponding third conveyor platform; the automatic feeder, the drilling and milling processing center for milling and drilling the back of the door panel, the first conveyor platform, the automatic panel turning machine, the second conveyor platform, the third conveyor platform, the plate processing center for carving and / or grooving the front of the door panel, and the automatic unloading mechanism are all connected to the control system, so that the entire processing process is automated; and a code scanning device is set at the process position before the automatic panel turning machine; so far, the combination and assembly form a flexible CNC production line for panel furniture; The panel furniture flexible CNC production line includes the following steps when processing: Step 1. Put the door panel on the hydraulic lifting platform of the automatic feeder. The suction cup of the feeding manipulator sucks the top door panel and moves it up. After it is in place, the feeding manipulator moves horizontally in the X direction to drive the door panel to the processing table of the drilling and milling processing center. First, use the positioning strip to position the panel, and then start the vacuum pump to vacuum the bottom of the panel. After the panel is firmly adsorbed on the processing table of the drilling and milling processing center, the positioning cylinders at the back and sides return to complete the positioning, and the back of the door panel is milled and drilled to complete the drilling and trimming of the back of the door panel; Step 2: Move the push rack down to below the plate plane and push the door panel to the first conveying platform; Step 3, the automatic panel flipping machine flips over the door panel with the processed back side and places it on the second conveyor platform; in the initial state, the flipping robot is located below the conveying surface of the first conveyor platform, and the first conveyor platform is designed as a roller conveying structure, and the suction cup mounting rod is located in the gap between adjacent rollers. At this time, the suction cup is set upward, and when the door panel is pushed to the first conveyor platform by the pushing rack, the door panel is adsorbed on the suction cup of the flipping robot, and the motor controls the flipping robot to flip 180 degrees upward toward the second conveyor platform until the door panel is located on the second conveyor platform, and the flipping robot releases the adsorption of the door panel, and flips back and resets to below the conveying surface of the first conveyor platform; Step 4: The second conveyor platform conveys the door panels facing upward to a plurality of positions corresponding to the third conveyor platform according to the recognition results, and the pushing mechanism pushes the door panels on the second conveyor platform to the corresponding third conveyor platform respectively; Step 5, the door panels on the third conveyor platform enter the panel processing center, and the front of the door panels is carved and / or grooved. The front processing shapes of each door panel are the same or different. After the front processing is completed, the door panels are output from their respective automatic unloading mechanisms.

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