Edge banding machine pre-milling device capable of automatically adjusting cutter and automatic cutter adjusting method

Abstract

The invention relates to the technical field of edge banding machine pre-milling devices, in particular to an edge banding machine pre-milling device capable of automatically adjusting a cutter and an automatic cutter adjusting method.The edge banding machine pre-milling device capable of automatically adjusting the cutter comprises a controller, a pre-milling base, a front pre-milling module, a rear pre-milling module and a thickness detection device; each of the front pre-milling module and the rear pre-milling module comprises a milling cutter sliding seat slidably connected to the pre-milling base in the front-back direction, a milling cutter assembly arranged on the milling cutter sliding seat, a lead screw nut arranged on the milling cutter base, a transmission lead screw in threaded transmission connection with the lead screw nut, and a servo motor for driving the transmission lead screw to rotate; the servo motor is arranged on the milling cutter sliding seat, and the output end of the servo motor is in driving connection with the transmission screw rod; the edge banding machine pre-milling device capable of automatically adjusting the cutter is high in overall automation degree, a large amount of workload of operators can be reduced, the cutter adjusting efficiency can be improved, and the edge banding machine pre-milling device can be better suitable for an edge banding machine.

Description

Technical Field:

[0001] The present invention relates to the technical field of edge banding machine pre-milling devices, and particularly relates to an edge banding machine pre-milling device capable of automatically adjusting the tool and an automatic tool adjustment method. Background Art:

[0002] An edge banding machine is a type of woodworking machinery. As the name implies, an edge banding machine is used for edge banding. Among them, the edge banding machine includes a pre-milling device;

[0003] Most of the existing pre-milling devices for edge banding machines are like a pre-milling device of a wood edge banding machine disclosed in a Chinese utility model patent with the application number CN202023000863.9, which includes a pre-milling base, a front pre-milling module, and a rear pre-milling module. The front pre-milling module and the rear pre-milling module respectively include a milling cutter slide seat slidably connected to the pre-milling base in the front-rear direction, a milling cutter assembly arranged on the milling cutter slide seat, a cylinder driving power mechanism for driving the milling cutter slide seat to slide back and forth, and a tool adjustment component for adjusting the front-rear position of the milling cutter slide seat. The cylinder driving power mechanism is used to control the feeding and retracting of the milling cutter assembly so that the milling cutter assembly can withdraw after milling to prevent interference. The tool adjustment component includes an adjustment screw rod and a travel digital display. That is, it is necessary to manually rotate the adjustment screw rod to adjust the tool. Since the milling cutter will wear after being used for a period of time and needs to be replaced, and the replaced milling cutter needs to be re-adjusted to ensure the milling amount of the wood board. And each time after changing the tool, manual adjustment is realized manually, which is not only relatively troublesome in overall operation, but also has low efficiency. Summary of the Invention:

[0004] The purpose of the present invention is to provide an edge banding machine pre-milling device capable of automatically adjusting the tool for the deficiencies existing in the prior art. The overall automation degree is relatively high. It neither requires manual detection of the board thickness nor manual tool adjustment. It can not only reduce the workload of operators, but also improve the tool adjustment efficiency and be better applicable to the edge banding machine;

[0005] The present invention also provides an automatic tool adjustment method for an edge banding machine pre-milling device capable of automatically adjusting the tool, which can realize automatic tool adjustment quickly and efficiently, can not only reduce the workload of operators, but also improve the tool adjustment efficiency and be better applicable to the edge banding machine.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a pre-milling device for an edge banding machine with automatic tool adjustment, including a controller, a pre-milling base, a front pre-milling module, a rear pre-milling module, and a thickness detection device. The front pre-milling module and the rear pre-milling module respectively include a milling cutter slide seat slidably connected to the pre-milling base in the front-rear direction, a milling cutter assembly arranged on the milling cutter slide seat, a lead screw nut arranged on the milling cutter base, a transmission lead screw threadedly engaged with the lead screw nut, and a servo motor for driving the transmission lead screw to rotate. The servo motor is arranged on the milling cutter slide seat, and the output end of the servo motor is drivingly connected to the transmission lead screw; the thickness detection device is used for automatically detecting the thickness of the board; the controller is used for adjusting the tool of the milling cutter assembly of the front pre-milling module and / or the milling cutter assembly of the rear pre-milling module according to the detection result of the thickness detection device.

[0007] A further improvement to the above solution is that the thickness detection device includes a detection base, a detection slide seat slidably connected to the detection base in the front-rear direction, a detection roller rotatably connected to the detection slide seat in the vertical direction, a detection block arranged on the detection slide seat, a detection frame arranged on the detection base, a self-resetting linear displacement sensor arranged on the detection frame, and a reset compression spring clamped between the detection block and the detection frame. The self-resetting linear displacement sensor includes a detection probe, and the detection probe abuts against the detection block.

[0008] A further improvement to the above solution is that a first through hole is formed on the detection frame, a second through hole is formed on the detection block, and an adjusting bolt is arranged on the detection frame. The threaded end of the adjusting bolt sequentially passes through the first through hole and the second through hole and is threadedly connected with an adjusting nut.

[0009] A further improvement to the above solution is that the reset compression spring is sleeved on the adjusting bolt.

[0010] A further improvement to the above solution is that a detection slide rail is arranged on the detection base, a detection slider is slidably connected to the detection slide rail, and the detection slider is connected to the detection slide seat.

[0011] An automatic tool adjustment method for a pre-milling device of an edge banding machine with automatic tool adjustment, applicable to a pre-milling device of an edge banding machine with automatic tool adjustment as described in any one of claims 1-5, includes the following steps:

[0012] A. Milling the board respectively through the front pre-milling module and the rear pre-milling module;

[0013] B. Detecting the thickness of the board milled by the front pre-milling module and the rear pre-milling module through the thickness detection device and sending the detection result to the controller;

[0014] C. The controller adjusts the milling cutter assemblies of the front pre-milling module and / or the rear pre-milling module respectively according to the detection results of the thickness detection device;

[0015] Step C specifically includes the following steps:

[0016] C1. The controller calculates the required adjustment amount S1 of the milling cutter assembly of the front pre-milling module and / or the required adjustment amount S2 of the milling cutter assembly of the rear pre-milling module according to the preset reference position S0 and the detection results of the thickness detection device;

[0017] C2. The controller controls the servo motor of the front pre-milling module according to the required adjustment amount S1 to drive the transmission lead screw of the front pre-milling module to rotate and drive the corresponding pre-milling slide to slide forward or backward, so that the milling cutter assembly of the front pre-milling module is located at the preset reference position S0;

[0018] The controller controls the servo motor of the rear pre-milling module according to the required adjustment amount S2 to drive the transmission lead screw of the rear pre-milling module to rotate and drive the corresponding pre-milling slide to slide forward or backward, so that the milling cutter assembly of the rear pre-milling module is located at the preset reference position S0.

[0019] For further improvement of the above solution, step C1 specifically includes the following steps:

[0020] C11. The plate part milled by the front pre-milling module is the front pre-milling section, and the plate part milled by the rear pre-milling module is the rear pre-milling section. A plurality of key detection areas are uniformly selected for the front pre-milling section and the rear pre-milling section respectively;

[0021] C12. The thickness detection device is used to detect the thickness of each key detection area in the front pre-milling section respectively, and the average value of the detected values of each key detection area in the front pre-milling section is taken to obtain the detection result J1 of the front pre-milling module. The required adjustment amount S1 of the front pre-milling module = J1 - S0;

[0022] The thickness detection device is used to detect the thickness of each key detection area in the rear pre-milling section respectively, and the average value of the detected values of each key detection area in the rear pre-milling section is taken to obtain the detection result J2 of the rear pre-milling module. The required adjustment amount S2 of the front pre-milling module = J2 - S0.

[0023] For further improvement of the above solution, a plurality of key detection points are uniformly selected for each key detection area in the front pre-milling section and each key detection area in the rear pre-milling section respectively;

[0024] The thickness detection device is used to detect the thickness of each key detection point in each key detection area respectively, and the average value of the detected values of each key detection point in the same key detection area is taken as the detection value of this key detection area.

[0025] A further improvement to the above solution is that when taking the average value of the various values detected at each key detection point in the same key detection area as the detection value of this key detection area, first remove a minimum value and a maximum value from the various values detected at each key detection point in the same key detection area, and then take the average value.

[0026] A further improvement to the above solution is that when adjusting the tool of the milling cutter assembly of the front pre-milling module, the preset reference position S0 is the position when the milling cutter assemblies of the current front and rear pre-milling modules are milling;

[0027] When adjusting the tool of the milling cutter assembly of the rear pre-milling module, the preset reference position S0 is the position when the milling cutter assembly of the current front pre-milling module is milling.

[0028] The beneficial effects of the present invention are as follows: A pre-milling device for an edge banding machine capable of automatically adjusting the tool, including a controller, a pre-milling base, a front pre-milling module, a rear pre-milling module, and a thickness detection device. The front pre-milling module and the rear pre-milling module respectively include a milling cutter slide seat slidably connected to the pre-milling base in the front-rear direction, a milling cutter assembly arranged on the milling cutter slide seat, a lead screw nut arranged on the milling cutter base, a transmission lead screw threadedly engaged with the lead screw nut, and a servo motor for driving the transmission lead screw to rotate. The servo motor is arranged on the milling cutter slide seat, and the output end of the servo motor is drivingly connected to the transmission lead screw; the thickness detection device is used for automatically detecting the thickness of the plate; the controller is used for adjusting the tool of the milling cutter assembly of the front pre-milling module and / or the milling cutter assembly of the rear pre-milling module respectively according to the detection result of the thickness detection device;

[0029] Compared with the existing pre-milling device that requires manual detection of the plate and manual screwing of the adjusting lead screw to adjust the tool, the pre-milling device for an edge banding machine capable of automatically adjusting the tool of the present invention can automatically detect the thickness of the plate through the thickness detection device, and then the controller adjusts the tool of the milling cutter assembly of the front pre-milling module and / or the milling cutter assembly of the rear pre-milling module respectively according to the detection result of the thickness detection device. That is, by driving the transmission lead screw to rotate forward and backward through the servo motor and cooperating with the lead screw nut, it can drive the pre-milling slide seat to slide back and forth, that is, it can adjust the front-rear relative position between the milling cutter assembly and the plate, so as to be able to replace the previous method of manually screwing the adjusting lead screw to perform automatic tool adjustment. The pre-milling device for an edge banding machine capable of automatically adjusting the tool of the present invention has a relatively high degree of automation as a whole. It can not only reduce the workload of a large number of operators, but also improve the tool adjustment efficiency and is more suitable for the edge banding machine. Description of the drawings:

[0030] Figure 1 It is a schematic structural diagram of a pre-milling device for an edge banding machine capable of automatically adjusting the tool of the present invention.

[0031] Figure 2 This is a schematic structural diagram of the front pre-milling module and the rear pre-milling module of the pre-milling device of an edge banding machine with automatic tool adjustment according to the present invention.

[0032] Figure 3 This is a schematic structural diagram of the thickness detection device of the pre-milling device of an edge banding machine with automatic tool adjustment according to the present invention.

[0033] Figure 4 This is a control principle block diagram of the pre-milling device of an edge banding machine with automatic tool adjustment according to the present invention.

[0034] Explanation of reference numerals: thickness detection device 1, detection base 11, detection slide 12, detection roller 13, detection block 14, second through hole 141, detection frame 15, first through hole 151, self-resetting linear displacement sensor 16, detection probe 161, reset compression spring 17, adjusting bolt 18, adjusting nut 19, detection slide rail 20, detection slider 21, pre-milling base 2, front pre-milling module 3, milling cutter slide 31, milling cutter assembly 32, lead screw nut 33, drive lead screw 34, servo motor 35, rear pre-milling module 4, controller 5. Detailed implementation manners:

[0035] Example 1, as Figures 1-4As shown in the figure, a pre-milling device for an edge banding machine with automatic tool adjustment according to the present invention includes a controller 5, a pre-milling base 2, a front pre-milling module 3, a rear pre-milling module 4, and a thickness detection device 1. The front pre-milling module 3 and the rear pre-milling module 4 respectively include a milling cutter slide 31 slidably connected to the pre-milling base 2 in the front-rear direction, a milling cutter assembly 32 provided on the milling cutter slide 31, a lead screw nut 33 provided on the milling cutter base, a transmission lead screw 34 threadedly engaged with the lead screw nut 33, and a servo motor 35 for driving the transmission lead screw 34 to rotate. The servo motor 35 is provided on the milling cutter slide 31, and the output end of the servo motor 35 is drivingly connected to the transmission lead screw 34. The thickness detection device 1 is used for automatically detecting the thickness of the board. The controller 5 is used for adjusting the tool of the milling cutter assembly 32 of the front pre-milling module 3 and / or the milling cutter assembly 32 of the rear pre-milling module 4 respectively according to the detection result of the thickness detection device 1. Compared with the existing pre-milling device that requires manual detection of the board and manual screwing of the adjustment lead screw for tool adjustment, the pre-milling device for an edge banding machine with automatic tool adjustment according to the present invention can automatically detect the thickness of the board through the thickness detection device 1, and then the controller 5 adjusts the tool of the milling cutter assembly 32 of the front pre-milling module 3 and / or the milling cutter assembly 32 of the rear pre-milling module 4 respectively according to the detection result of the thickness detection device 1. That is, by driving the transmission lead screw 34 to rotate forward and backward by the servo motor 35 and cooperating with the lead screw nut 33, the pre-milling slide can be driven to slide back and forth, that is, the front-rear relative position between the milling cutter assembly 32 and the board can be adjusted, so that the manual screwing of the adjustment lead screw in the past can be replaced to realize automatic tool adjustment. The pre-milling device for an edge banding machine with automatic tool adjustment according to the present invention has a relatively high degree of automation. It neither requires manual detection of the board thickness by workers nor manual tool adjustment. It can not only reduce the workload of operators, but also improve the tool adjustment efficiency and is more suitable for edge banding machines.

[0036] In addition, compared with the need to separately set a cylinder driving power mechanism and a tool adjustment component in the past, the pre-milling device for an edge banding machine with automatic tool adjustment according to the present invention can drive the transmission lead screw 34 to rotate forward and backward by the servo motor 35 and cooperate with the lead screw nut 33 to drive the pre-milling slide to slide back and forth, that is, drive the milling cutter assembly 32 to move back and forth. It can not only replace the cylinder driving power mechanism to realize the function of advancing and retracting the tool, but also replace the tool adjustment component to realize the tool adjustment function, with stronger practicability.

[0037] The thickness detection device 1 includes a detection base 11, a detection slide 12 slidably connected to the detection base 11 in the front-rear direction, a detection roller 13 rotatably connected to the detection slide 12 in the vertical direction, a detection block 14 provided on the detection slide 12, a detection frame 15 provided on the detection base 11, a self-resetting linear displacement sensor 16 provided on the detection frame 15, and a reset compression spring 17 clamped between the detection block 14 and the detection frame 15. The self-resetting linear displacement sensor 16 includes a detection probe 161, and the detection probe 161 abuts against the detection block 14. When the moving plate to be detected moves to the position of the detection roller 13, the detection roller 13 rolls on the moving plate to be detected, and the detection roller 13 is correspondingly pushed backward by the moving plate to be detected. As the detection roller 13 is pushed backward, the detection roller 13 drives the detection slide 12 to slide backward and causes the detection block 14 on the detection slide 12 to push the detection probe 161 of the self-resetting linear displacement sensor 16 backward. By combining with the reset compression spring 17, the detection roller 13 will move back and forth according to the different thicknesses at various positions on the moving plate to be detected and push the detection probe 161 of the self-resetting linear displacement sensor 16 to different degrees. Thus, the different thicknesses at various positions on the moving plate to be detected can be automatically detected according to the displacement amount of the detection probe 161 of the self-resetting linear displacement sensor 16. The thickness detection device 1 of the present invention can perform automatic thickness detection on the moving plate, which can not only reduce the workload of a large number of operators, but also has a higher thickness detection efficiency and can improve the overall plate processing efficiency.

[0038] In addition, compared with directly detecting the thickness of the moving plate through an infrared photoelectric sensor, which is easily affected by interference such as the reflection of the plate surface, pores, dust, and color on the surface, the detection result of the thickness detection device 1 of the present invention is more accurate and stable.

[0039] A first through hole 151 is formed on the detection frame 15, a second through hole 141 is formed on the detection block 14, and an adjusting bolt 18 is provided on the detection frame 15. The threaded end of the adjusting bolt 18 sequentially passes through the first through hole 151 and the second through hole 141 and is threadedly connected with an adjusting nut 19. By adjusting the position where the adjusting nut 19 is locked on the adjusting bolt 18, the position of the detection block 14 relative to the detection probe 161 of the self-resetting linear displacement sensor 16 can be correspondingly adjusted, so that the position of the detection block 14 relative to the detection probe 161 of the self-resetting linear displacement sensor 16 can be adjusted according to the actual situation.

[0040] The reset compression spring 17 is sleeved on the adjusting bolt 18. When the moving plate to be detected moves to the position of the detection roller 13, the detection roller 13 rolls on the moving plate to be detected, and the detection roller 13 is correspondingly pushed backward by the moving plate to be detected. As the detection roller 13 is pushed backward, the detection roller 13 drives the detection slide 12 to slide backward and makes the detection block 14 located on the detection slide 12 push the detection probe 161 of the self-resetting linear displacement sensor 16 backward; when the thickness of the moving plate to be detected becomes smaller or the whole passes through the position of the detection roller 13, the reset compression spring 17 pushes the detection block 14 to slide forward and reset, and drives the detection roller 13 to move forward and reset.

[0041] A detection slide rail 20 is provided on the detection base 11, and a detection slider 21 is slidably connected to the detection slide rail 20. The detection slider 21 is connected to the detection slide 12; through the cooperation of the detection slide rail 20 and the detection slider 21, the detection slide 12 can slide more smoothly on the detection base 11, so as to better realize the thickness detection of the moving plate.

[0042] Embodiment 2, an automatic tool adjustment method for a pre-milling device of an edge banding machine with automatic tool adjustment according to the present invention, which is applicable to a pre-milling device of an edge banding machine with automatic tool adjustment as described in Embodiment 1, includes the following steps:

[0043] A. The plate is respectively milled by the front pre-milling module 3 and the rear pre-milling module 4;

[0044] B. The thickness of the plate milled by the front pre-milling module 3 and the rear pre-milling module 4 is detected by the thickness detection device 1, and the detection result is sent to the controller 5;

[0045] C. The controller 5 adjusts the milling cutter assemblies 32 of the front pre-milling module 3 and / or the milling cutter assemblies 32 of the rear pre-milling module 4 according to the detection result of the thickness detection device 1;

[0046] The specific steps of step C include the following steps:

[0047] C1. The controller 5 calculates the required adjustment amount S1 of the milling cutter assembly 32 of the front pre-milling module 3 and / or the required adjustment amount S2 of the milling cutter assembly 32 of the rear pre-milling module 4 according to the preset reference position S0 and the detection result of the thickness detection device 1;

[0048] C2. The controller 5 controls the servo motor 35 of the front pre-milling module 3 to drive the transmission lead screw 34 of the front pre-milling module 3 to rotate according to the required adjustment amount S1, and drives the corresponding pre-milling slide to slide forward or backward, so that the milling cutter assembly 32 of the front pre-milling module 3 is located at the preset reference position S0;

[0049] The controller 5 controls the servo motor 35 of the post-pre-milling module 4 according to the required adjustment amount S2 to drive the transmission lead screw 34 of the post-pre-milling module 4 to rotate and drive the corresponding pre-milling slide to slide forward or backward, so that the milling cutter assembly 32 of the post-pre-milling module 4 is located at the preset reference position S0.

[0050] The automatic tool adjustment method of the edge banding machine pre-milling device capable of automatic tool adjustment according to the present invention can realize automatic tool adjustment quickly and efficiently. It can not only reduce a large amount of workload of operators, but also improve the tool adjustment efficiency, and can be better applied to the edge banding machine.

[0051] The specific steps of the step C1 include the following steps:

[0052] C11. The plate part milled by the front pre-milling module 3 is the front pre-milling section, and the plate part milled by the post-pre-milling module 4 is the post-pre-milling section. A plurality of key detection areas are evenly selected for the front pre-milling section and the post-pre-milling section respectively;

[0053] C12. The thickness detection device 1 is used to detect the thickness of each key detection area of the front pre-milling section respectively. The values detected in each key detection area of the front pre-milling section are averaged to obtain the detection result J1 of the front pre-milling module 3. The required adjustment amount S1 of the front pre-milling module 3 = J1 - S0;

[0054] The thickness detection device 1 is used to detect the thickness of each key detection area of the post-pre-milling section respectively. The values detected in each key detection area of the post-pre-milling section are averaged to obtain the detection result J2 of the post-pre-milling module 4. The required adjustment amount S2 of the front pre-milling module 3 = J2 - S0; Compared with directly measuring a certain position in the front pre-milling section and the post-pre-milling section respectively and using it as the thickness detection result of the front pre-milling section and the post-pre-milling section, the present invention can greatly improve the anti-interference ability of the detection result through the above technical means. By averaging multiple key detection areas, it can effectively avoid the interference of tiny unevenness or pollutants on the surface of the plate, and can effectively improve the accuracy of the detection result. Thus, it can better ensure the automatic tool adjustment effect, without the need for retool adjustment, and only one tool adjustment is required to complete precise tool adjustment, which can greatly improve the tool adjustment efficiency.

[0055] A plurality of key detection points are evenly selected for each key detection area of the front pre-milling section and each key detection area of the post-pre-milling section respectively;

[0056] The thickness of each key detection point in each key detection area is detected by the thickness detection device 1 respectively, and the average value of the values detected at each key detection point in the same key detection area is taken as the detection value of this key detection area; since the overall surface of the plate cannot be made absolutely flat and smooth, the above technical means of the present invention can further improve the anti-interference ability of the thickness detection result, thereby further improving the accuracy of the detection result.

[0057] When taking the average value of the values detected at each key detection point in the same key detection area as the detection value of this key detection area, first remove one minimum value and one maximum value from the values detected at each key detection point in the same key detection area and then take the average value; the above technical means of the present invention can maximize the reduction of the error of the overall thickness detection result caused by the detection error at individual position points, thereby further ensuring that precise tool setting can be completed with only one tool setting.

[0058] In this embodiment, when adjusting the tool of the milling cutter assembly 32 of the front pre-milling module 3, the preset reference position S0 is the position when the milling cutter assembly 32 of the current front and rear pre-milling module 4 mills; when adjusting the tool of the milling cutter assembly 32 of the rear pre-milling module 4, the preset reference position S0 is the position when the milling cutter assembly 32 of the current front pre-milling module 3 mills; since when changing the tool, generally, the tool of one of the milling cutter assemblies 32 in the front pre-milling module 3 and the rear pre-milling module 4 is changed first, and then the tool is adjusted with the other milling cutter assembly 32 that has not been changed as the reference, so that the two milling cutter assemblies 32 of the milling cutter assembly 32 of the front pre-milling module 3 and the milling cutter assembly 32 of the rear pre-milling module 4 are respectively located at the preset reference position and in the same plane to ensure the flatness of the plate after milling. Similarly, the tool of the other milling cutter assembly 32 is changed and adjusted.

[0059] Of course, in other embodiments, a reference position S0 can also be preset in advance, and then the tools of the milling cutter assembly 32 of the front pre-milling module 3 and the milling cutter assembly 32 of the rear pre-milling module 4 are changed and adjusted at the same time, and the milling cutter assembly 32 of the front pre-milling module 3 and the milling cutter assembly 32 of the rear pre-milling module 4 are respectively adjusted to the reference position S0.

[0060] Working principle:

[0061] After changing the tool, the front pre-milling module 3 and the rear pre-milling module 4 are used to mill the plate respectively. The thickness detection device 1 can automatically detect the thickness of the plate. Then, according to the detection result of the thickness detection device 1, the controller 5 adjusts the tool of the milling cutter assembly 32 of the front pre-milling module 3 and / or the milling cutter assembly 32 of the rear pre-milling module 4 respectively. That is, by driving the transmission lead screw 34 to rotate forward and backward through the servo motor 35 and cooperating with the lead screw nut 33, the pre-milling slide seat can be driven to slide back and forth, that is, the front and rear relative positions between the milling cutter assembly 32 and the plate can be adjusted, so that the two milling cutter assemblies 32 of the milling cutter assembly 32 of the front pre-milling module 3 and the milling cutter assembly 32 of the rear pre-milling module 4 are respectively located at the preset reference positions and in the same plane, ensuring the flatness of the plate after milling; The pre-milling device of the edge banding machine with automatic tool adjustment of the present invention has a high overall automation degree, which can not only reduce the workload of operators, but also improve the tool adjustment efficiency and be better applicable to the edge banding machine.

[0062] Certainly, the above is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. An edge banding machine pre-milling device capable of automatically adjusting the tool, characterized in that: It includes a controller (5), a pre-milling base (2), a front pre-milling module (3), a rear pre-milling module (4), and a thickness detection device (1). The front pre-milling module (3) and the rear pre-milling module (4) respectively include a milling cutter slide (31) slidably connected to the pre-milling base (2) in the front-rear direction, a milling cutter assembly (32) arranged on the milling cutter slide (31), a lead screw nut (33) arranged on the milling cutter base, a transmission lead screw (34) threadedly drivingly connected to the lead screw nut (33), and a servo motor (35) for driving the transmission lead screw (34) to rotate. The servo motor (35) is arranged on the milling cutter slide (31), and the output end of the servo motor (35) is drivingly connected to the transmission lead screw (34); the thickness detection device (1) is used for automatically detecting the thickness of the plate; the controller (5) is used for adjusting the cutter of the milling cutter assembly (32) of the front pre-milling module (3) and / or the milling cutter assembly (32) of the rear pre-milling module (4) according to the detection result of the thickness detection device (1).

2. The pre-milling device of an edge banding machine capable of automatically adjusting the tool according to claim 1, wherein: The thickness detection device (1) includes a detection base (11), a detection slide (12) slidably connected to the detection base (11) in the front-rear direction, a detection roller (13) rotatably connected to the detection slide (12) in the vertical direction, a detection block (14) arranged on the detection slide (12), a detection frame (15) arranged on the detection base (11), a self-resetting linear displacement sensor (16) arranged on the detection frame (15), and a reset compression spring (17) clamped between the detection block (14) and the detection frame (15). The self-resetting linear displacement sensor (16) includes a detection probe (161), and the detection probe (161) abuts against the detection block (14).

3. The pre-milling device of an edge banding machine capable of automatically adjusting the tool according to claim 2, characterized in that: A first through hole (151) is formed on the detection frame (15), a second through hole (141) is formed on the detection block (14), an adjusting bolt (18) is arranged on the detection frame (15), and the threaded end of the adjusting bolt (18) sequentially passes through the first through hole (151), the second through hole (141) and is threadedly connected with an adjusting nut (19).

4. The pre-milling device of an edge banding machine capable of automatically adjusting the tool according to claim 3, characterized in that: The reset compression spring (17) is sleeved on the adjusting bolt (18).

5. The pre-milling device of an edge banding machine capable of automatically adjusting the tool according to claim 2, characterized in that: A detection slide rail (20) is arranged on the detection base (11), a detection slider (21) is slidably connected to the detection slide rail (20), and the detection slider (21) is connected to the detection slide (12).

6. An automatic tool adjustment method for a pre-milling device of an edge banding machine capable of automatic tool adjustment, characterized in that, Applicable to a pre-milling device of an edge banding machine with automatic cutter adjustment as described in any one of claims 1-5, it includes the following steps: A. Milling the plate through the front pre-milling module (3) and the rear pre-milling module (4) respectively; B. Detecting the thickness of the plate milled by the front pre-milling module (3) and the rear pre-milling module (4) through the thickness detection device (1) and sending the detection result to the controller (5); C. The controller (5) adjusts the cutter of the milling cutter assembly (32) of the front pre-milling module (3) and / or the milling cutter assembly (32) of the rear pre-milling module (4) according to the detection result of the thickness detection device (1); The step C specifically includes the following steps: C1. The controller (5) calculates the required adjustment amount S1 of the milling cutter assembly (32) of the front pre-milling module (3) and / or the required adjustment amount S2 of the milling cutter assembly (32) of the rear pre-milling module (4) according to the preset reference position S0 and the detection result of the thickness detection device (1); C2. The controller (5) controls the servo motor (35) of the front pre-milling module (3) according to the required adjustment amount S1 to drive the transmission lead screw (34) of the front pre-milling module (3) to rotate and drive the corresponding pre-milling slide to slide forward or backward, so that the milling cutter assembly (32) of the front pre-milling module (3) is located at the preset reference position S0; The controller (5) controls the servo motor (35) of the rear pre-milling module (4) according to the required adjustment amount S2 to drive the transmission lead screw (34) of the rear pre-milling module (4) to rotate and drive the corresponding pre-milling slide to slide forward or backward, so that the milling cutter assembly (32) of the rear pre-milling module (4) is located at the preset reference position S0.

7. The pre-milling device of an edge banding machine capable of automatically adjusting the tool according to claim 6, wherein: The specific steps of step C1 include the following steps: C11. The plate part milled by the front pre-milling module (3) is the front pre-milling section, and the plate part milled by the rear pre-milling module (4) is the rear pre-milling section. A plurality of key detection areas are evenly selected for the front pre-milling section and the rear pre-milling section respectively; C12. The thickness detection device (1) is used to detect the thickness of each key detection area in the front pre-milling section respectively. The average value of the values detected in each key detection area in the front pre-milling section is taken to obtain the detection result J1 of the front pre-milling module (3). The required adjustment amount S1 of the front pre-milling module (3) = J1 - S0; The thickness detection device (1) is used to detect the thickness of each key detection area in the rear pre-milling section respectively. The average value of the values detected in each key detection area in the rear pre-milling section is taken to obtain the detection result J2 of the rear pre-milling module (4). The required adjustment amount S2 of the front pre-milling module (3) = J2 - S0.

8. The pre-milling device of an edge banding machine capable of automatically adjusting the tool according to claim 7, characterized in that: A plurality of key detection points are evenly selected for each key detection area in the front pre-milling section and each key detection area in the rear pre-milling section respectively; The thickness detection device (1) is used to detect the thickness of each key detection point in each key detection area respectively, and the average value of the values detected in each key detection point located in the same key detection area is taken as the detection value of this key detection area.

9. The pre-milling device of an edge banding machine capable of automatically adjusting the tool according to claim 8, characterized in that: When taking the average value of the values detected in each key detection point located in the same key detection area as the detection value of this key detection area, first remove one minimum value and one maximum value from the values detected in each key detection point located in the same key detection area and then take the average value.

10. The pre-milling device of an edge banding machine capable of automatically adjusting the tool according to claim 6, characterized in that: When adjusting the tool of the milling cutter assembly (32) of the front pre-milling module (3), the preset reference position S0 is the position when the milling cutter assembly (32) of the current rear pre-milling module (4) is milling; When adjusting the tool of the milling cutter assembly (32) of the rear pre-milling module (4), the preset reference position S0 is the position when the milling cutter assembly (32) of the current front pre-milling module (3) is milling.

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