Aluminum honeycomb panel right-angle bending device and method

Abstract

The aluminum honeycomb panel right-angle bending device comprises a base, a turnover mechanism, a three-way slide way, a three-head milling tool and a bending mechanism. The base is of a rectangular frame structure, and the surface of the base is a working table. The turnover mechanism is mounted in the middle of the working table and comprises a fixed plate, a turnover plate, a sector gear, a motor I and an air cylinder I; the three-way slide way comprises a longitudinal slide way, a vertical slide way and a transverse slide way; the three-head milling tool comprises a seat body and a rotating shaft; the bending mechanism comprises an abutting mechanism and a rolling mechanism; the pressing mechanism comprises a pressing rod, a fixed seat and a connecting rod; the rolling mechanism comprises a bending head, a pressing roller and a supporting plate. The method has the beneficial technical effects that right-angle bending is adopted to replace right-angle splicing, the aluminum honeycomb panel can be subjected to right-angle bending at a time, the problems that the strength and the rigidity are poor after right-angle splicing are solved, and the machining efficiency, the performance and the appearance quality of aluminum alloy furniture are effectively improved.

Description

Technical Field

[0001] This invention relates to an aluminum honeycomb panel bending technology, and more particularly to an aluminum honeycomb panel right-angle bending device and method. Background Technology

[0002] Aluminum honeycomb panels are widely used due to their strength being more than four times that of traditional wood panels, their eco-friendly nature (formaldehyde-free), impact resistance, ease of maintenance, water and insect resistance, and their ability to improve the environment inside homes and throughout rooms. Aluminum honeycomb panels typically refer to panels with thin aluminum sheets on the top and bottom surfaces, a honeycomb-shaped filling core in the middle, and edge banding on all four sides (see appendix). Figure 1 In the diagram, a is the top panel, b is the bottom panel, c is the filling core, and d is the edge sealing. If the honeycomb filling core is made of aluminum, this type of panel is called an all-aluminum honeycomb panel, which has advantages such as lighter weight, higher strength and rigidity, waterproof and insect-proof properties, and resistance to deformation.

[0003] As is well known, when making panel furniture using boards, it is common to fix two boards together in an L-shape (usually called right-angle assembly). The same right-angle assembly is used when making panel furniture using aluminum honeycomb panels. Existing technology for right-angle assembly of aluminum honeycomb panels borrows the "three-in-one screw" assembly method from wood panel furniture. Specifically, a through hole is drilled on the side of aluminum honeycomb panel II to allow the bolt head to be inserted; a corresponding through hole is drilled on the surface of aluminum honeycomb panel II to accommodate a screw thread; the through hole and the screw thread are connected and their axes are on the same plane. A corresponding through hole is drilled on the surface of aluminum honeycomb panel I to allow a rivet nut to be inserted, and the rivet nut is riveted into this through hole. The bolt is screwed into the rivet nut, and then the bolt head is inserted into the through hole on the side of aluminum honeycomb panel II. The screw thread is then inserted into the screw hole on the surface of aluminum honeycomb panel II, and the screw thread is rotated with a screwdriver until the screw thread's slot engages with the bolt head. This completes the L-shaped assembly of aluminum honeycomb panel I and aluminum honeycomb panel II (see appendix). Figure 2 In the diagram, 1 represents aluminum honeycomb panel I, 1-1 is a rivet nut, and 1-2 is a bolt; 2 represents aluminum honeycomb panel II, 2-1 is a screw hole, 2-2 is a through hole, and 2-3 is a screw thread. This connection method, when used for right-angle assembly of wood panels, generally meets the requirements and ensures sufficient strength and rigidity of the assembled furniture. However, when used for assembling aluminum honeycomb panels, the thinness of the honeycomb core skeleton (usually only a fraction of a millimeter) is insufficient to withstand lateral forces; furthermore, the aluminum panel thickness is typically only about 0.8mm, which also cannot withstand significant external forces. This results in poor strength and rigidity of the right-angle structure after assembly, severely impacting the lifespan of the aluminum alloy furniture.

[0004] Clearly, the existing technology for assembling aluminum honeycomb panels at right angles has problems such as poor strength and rigidity of the assembled right-angle structure, which seriously affects the service life of aluminum alloy furniture. Summary of the Invention

[0005] To address the problems of poor strength and rigidity of the assembled right-angle structure in existing aluminum honeycomb panel right-angle assembly methods, which seriously affect the service life of aluminum alloy furniture, this invention proposes an aluminum honeycomb panel right-angle bending device and method.

[0006] This invention relates to a right-angle bending device for aluminum honeycomb panels, comprising a base, a flipping mechanism, a three-way slide rail, a three-head milling machine, and a bending mechanism. The base is a rectangular frame structure with its surface serving as a worktable. The flipping mechanism is installed in the center of the worktable and includes a fixed plate, a flipping plate, a sector gear, a motor I, and a cylinder I. The fixed plate is rectangular and fixed to the right side of the worktable. The flipping plate is rectangular and placed adjacent to the fixed plate on the left side of the worktable. The adjacent sides of the fixed plate and the flipping plate are hinged together. A sector gear is provided on the bottom surface of the flipping plate, and a rectangular slot is provided on the worktable corresponding to the sector gear. The motor I is fixed to the bottom surface of the worktable, and a gear I is fixed on the shaft of the motor I, with the gear I passing through the rectangular slot. The sector gears mesh with each other; there are at least eight cylinders I, fixed in pairs symmetrically on both sides of the surface of the fixed plate and the flip plate, and a pressure plate is fixed at the piston end of cylinder I; the three-way slide includes a longitudinal slide, a vertical slide, and a transverse slide; the longitudinal slide includes a trapezoidal groove, cylinder II, and a sliding column, the trapezoidal groove consists of two columns, respectively fixed on the worktable surface on both sides of the hinge of the fixed plate and the flip plate; the sliding column is a rectangular column and consists of two columns, with the bottom slidably installed in the trapezoidal groove; cylinder II is fixed at the end of the trapezoidal groove, and its piston end is connected to the bottom of the sliding column; the vertical slide includes a rectangular groove I, cylinder III, and a sliding rod; the rectangular groove I is located on the opposite side of the two sliding columns; the sliding rod is a rectangular... A rigid long rod is slidably mounted at both ends within rectangular slide grooves I, and a rack is provided on the top surface of the slide rod; a cylinder III is mounted on the top surface of the slide column, and its piston end is connected to the end of the slide rod; the transverse slide includes a rectangular slide groove II, a slider, and a motor II; the rectangular slide groove II is symmetrically arranged on two sides of the slide rod; the slider is a rectangular block and is slidably mounted on the slide rod; the motor II is fixed on the upper surface of the slider, and a gear II is fixed on the rotating shaft of the motor II, and the gear II meshes with the rack on the top surface of the slide rod; the three-head milling tool includes a base and a rotating shaft; the base is a flat cylinder and is rotatably fixed on the right side of the slider; the rotating shaft consists of three shafts, two at right angles fixed radially to the base; a flat milling cutter and a tapered milling cutter are respectively mounted on the three rotating shafts. The bending mechanism includes a pressing mechanism and a rolling mechanism. The pressing mechanism includes a pressure rod, a fixed seat, and a connecting rod. The pressure rod is a rectangular rigid long rod, with both ends connected to the fixed seat via connecting rods. The fixed seat is fixedly installed at both ends on the left side of the slide rod. The rolling mechanism includes a bending head, a pressure roller, and a support plate. The support plate is a rectangular plate with its upper end fixed to the left side of the slide rod. The bending head is a rigid twisted plate with its rear end fixed to the front side of the support plate. There are two rigid cylinders, which are fixed side by side to the lower end of the support plate. The twist angle of the bending head is 90 degrees. The horizontal plane of the front end of the bending head is more than n mm lower than the bottom surface of the pressure rod. The vertical plane of the rear end of the bending head is on the same plane as the cylinder surface of the pressure roller and is n mm away from the left side of the pressure rod. Wherein, n is the thickness of the upper panel of the aluminum honeycomb plate to be bent.

[0007] Furthermore, a buffer spring is fitted on the outer side of the connecting rod between the pressure rod and the fixed seat, and the connecting rod and the fixed seat are slidably connected.

[0008] Furthermore, the aluminum honeycomb panel right-angle bending device is also equipped with an adhesive application mechanism; the adhesive application mechanism is installed on the left front side of the roller pressing mechanism support plate and includes an adhesive bucket, an adhesive roller, and a Z-shaped support rod; the adhesive bucket is installed on the left front side of the roller pressing mechanism support plate, the Z-shaped support rod is a hollow support rod, one end of which is rotatably installed on the bottom surface of the adhesive bucket; the adhesive roller is a cylindrical foam structure and is rotatably installed on the other end of the Z-shaped support rod.

[0009] The aluminum honeycomb panel right-angle bending device of the present invention performs right-angle bending of aluminum honeycomb panels, including the following steps:

[0010] S01. Place the aluminum honeycomb panel to be bent on the surface of the fixed plate and the flipping plate, and adjust the bending line of the aluminum honeycomb panel to be in the same vertical plane as the hinge axis of the fixed plate and the flipping plate; wherein, the bending line refers to the outer apex angle line of the right angle formed after the aluminum honeycomb panel is bent at a right angle;

[0011] S02. Activate cylinder I. The piston of cylinder I pushes the pressure plate forward. The pressure plate clamps the aluminum honeycomb panel to be bent on the surface of the fixed plate and the flipping plate.

[0012] S03. Rotate the base of the three-head milling machine so that the face milling cutter is vertically downward; wherein, the diameter of the face milling cutter is...

[0013] S04. Activate cylinder II. Cylinder II pushes the slide column to a position where the axis of the end mill is offset to the left by 1 mm relative to the bend line.

[0014] S05. Activate cylinder III. Cylinder III pushes the slide bar down to a position where the lower end face of the milling cutter is flush with the lower surface of the upper panel of the aluminum honeycomb panel to be bent.

[0015] S06. Turn on the spindle of the end mill; at the same time, turn on motor II. Motor II pushes the slider to move, and the end mill begins to perform milling, machining a strip-shaped notch on the upper panel of the aluminum honeycomb panel to be bent; after the machining is completed, the slide bar and slider return to the starting position.

[0016] S07. Rotate the base of the three-head milling machine so that the tapered end mill is vertically downward; wherein the lower apex angle of the tapered end mill is 90 degrees, and the height of the tapered end mill is h. 2 +(0.1-0.3)mm, the width of the cone is

[0017] S08. Activate cylinder II. Cylinder II pushes the slide column to a position where the axis of the tapered milling cutter and the bend line are in the same vertical plane.

[0018] S09. Activate cylinder III. Cylinder III pushes the slide bar down to a position where the upper end face of the cone of the tapered milling cutter is flush with the lower surface of the upper panel of the aluminum honeycomb panel to be bent.

[0019] S10. Open the spindle of the tapered milling cutter; at the same time, turn on motor II, motor II pushes the slider to move, and the tapered milling cutter begins milling to process a V-shaped notch in the filling core of the aluminum honeycomb panel to be bent; at the same time, process a groove with a depth of 0.1-0.3mm on the upper surface of the lower plate of the aluminum honeycomb panel to be bent, namely bending groove I; after processing, the slide bar and slider return to the starting position;

[0020] S11. Rotate the base of the three-head milling machine so that the needle end mill is vertically downward;

[0021] S12. Activate cylinder II. Cylinder II pushes the slide column to move the axis of the needle end mill to the right relative to the bend line. Location;

[0022] S13. Activate cylinder III. Cylinder III pushes the slide bar down to a position where the tip of the needle milling cutter is 0.1-0.3mm below the upper surface of the panel of the aluminum honeycomb plate to be bent.

[0023] S14. Turn on the spindle of the needle milling cutter; at the same time, turn on motor II. Motor II pushes the slider to move, and the needle milling cutter begins to perform milling, machining a groove with a depth of 0.1-0.3mm on the upper surface of the aluminum honeycomb panel to be bent, namely bending groove II; after the machining is completed, the slide bar and slider return to the starting position.

[0024] S15. Rotate the base of the three-head milling machine so that the side of the base without the rotating shaft is vertically downward.

[0025] S16. Activate cylinder II. Cylinder II pushes the slide column to a position where the left side of the pressure rod of the pressing mechanism is in the same vertical plane as the bending line.

[0026] S17. Activate cylinder III. Cylinder III pushes the slide bar down to the position where the bottom surface of the pressure bar just contacts the upper surface of the upper panel of the aluminum honeycomb panel to be bent. At this time, the front horizontal plane of the bending head of the roller pressing mechanism is just below the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent.

[0027] S17. Start motor II. Motor II pushes the slider to move, and the bending head of the roller pressing mechanism begins to perform bending processing. That is, the horizontal and twisted surfaces at the front end of the bending head of the roller pressing mechanism bend the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent upwards by 90 degrees along the bending groove II, and then roll it through the pressure roller to form an L-shaped flange. After the processing is completed, the slide bar and slider return to the starting position.

[0028] S18. Turn on motor I. Motor I pushes the flipping plate to rotate 90 degrees to one side of the fixed plate through the sector gear, so that the left part of the V-shaped notch of the aluminum honeycomb panel to be bent bends 90 degrees along the bending groove I, thus completing the right-angle bending of the aluminum honeycomb panel.

[0029] S19. Reverse start motor I, motor I pushes the tilting plate back to the horizontal position through the sector gear;

[0030] S20. Reverse opening cylinder I, cylinder I piston moves backward, pressure plate releases the aluminum honeycomb panel to be bent; remove the bent aluminum honeycomb panel, bending process is complete.

[0031] Among them, h 1 h represents the thickness of the aluminum honeycomb panel to be bent. 2 The thickness of the filling core for the aluminum honeycomb panel to be bent is 1-3mm.

[0032] The beneficial technical effect of the aluminum honeycomb panel right-angle bending device and method of the present invention is that it replaces right-angle assembly with right-angle bending, and can bend the aluminum honeycomb panel at right angles in one go. This not only solves the problems of poor strength and rigidity after right-angle assembly, but also effectively improves the processing efficiency, performance and appearance quality of aluminum alloy furniture. Attached Figure Description

[0033] Appendix Figure 1 This is a three-dimensional schematic diagram of the basic structure of an aluminum honeycomb panel;

[0034] Appendix Figure 2 This is a three-dimensional schematic diagram of the L-shaped assembly of aluminum honeycomb panels using existing technology;

[0035] Appendix Figure 3 This is a three-dimensional schematic diagram of the aluminum honeycomb panel right-angle bending device of the present invention;

[0036] Appendix Figure 4 This is a three-dimensional schematic diagram of the aluminum honeycomb panel right-angle bending device of the present invention from another angle;

[0037] Appendix Figure 5 This is a three-dimensional schematic diagram of the flipping mechanism of the present invention;

[0038] Appendix Figure 6 This is a three-dimensional schematic diagram of the three-way sliding track of the present invention;

[0039] Appendix Figure 7 This is a three-dimensional schematic diagram of the three-head milling machine of the present invention;

[0040] Appendix Figure 8 This is a three-dimensional schematic diagram of the bending mechanism of the present invention;

[0041] Appendix Figure 9 This is a three-dimensional schematic diagram of the bending head of the present invention;

[0042] Appendix Figure 10 This is a three-dimensional schematic diagram of the aluminum honeycomb panel right-angle bending device of the present invention after completing a right-angle bend;

[0043] Appendix Figure 11 This is a three-dimensional schematic diagram of the bending process of the aluminum honeycomb panel right-angle bending device of the present invention;

[0044] Appendix Figure 12 This is a three-dimensional schematic diagram of the bending head and adhesive application mechanism of the present invention.

[0045] In the diagram, 1 represents aluminum honeycomb panel I, 1-1 is a rivet nut, and 1-2 is a bolt; 2 represents aluminum honeycomb panel II, 2-1 is a rivet hole, 2-2 is a straight hole, and 2-3 is a screw thread; 3 represents the base; 4 represents the flipping mechanism, 4-1 is a fixed plate, 4-2 is a flipping plate, 4-3 is a sector gear, 4-4 is motor I, and 4-5 is cylinder I; 5 represents a three-way slide, 5-1 is a trapezoidal slide groove, 5-2 is cylinder II, 5-3 is a sliding column, 5-4 is cylinder III, 5-5 is a sliding rod, and 5-6... 5-7 is the slider; 6 is the motor II; 7-8 is the three-head milling machine; 6-1 is the base; 6-2 is the milling rod; 7-9 is the bending mechanism; 7-1 is the pressure rod; 7-2 is the fixed seat; 7-3 is the connecting rod; 7-4 is the bending head; 7-5 is the pressure roller; 7-6 is the support plate; 7-7 is the buffer spring; 8-1 is the glue applicator; 8-2 is the glue roller; 8-3 is the Z-shaped support rod; a is the upper panel; b is the lower panel; c is the filling core; d is the edge sealing; A is the aluminum honeycomb panel to be bent.

[0046] The aluminum honeycomb panel right-angle bending device and method of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0047] See appendix Figures 3-11As shown in the figure, the aluminum honeycomb panel right-angle bending device of the present invention includes a base 3, a flipping mechanism 4, a three-way slide rail 5, a three-head milling tool 6, and a bending mechanism 7; the base is a rectangular frame structure, the surface of which is a worktable; the flipping mechanism is installed in the middle of the worktable and includes a fixed plate 4-1, a flipping plate 4-2, a sector gear 4-3, a motor I 4-4, and a cylinder I 4-5; the fixed plate is rectangular and fixed to the right side of the worktable; the flipping plate is rectangular and placed adjacent to the fixed plate on the left side of the worktable; the adjacent sides of the fixed plate and the flipping plate are hinged; a sector gear is provided on the bottom surface of the flipping plate, and a rectangular slot is provided on the worktable corresponding to the position of the sector gear; the motor I is fixed to the bottom surface of the worktable. A gear I is fixed on the shaft of motor I, and gear I meshes with a sector gear passing through a rectangular slot; there are at least eight cylinders I, fixed in pairs symmetrically on both sides of the surface of the fixed plate and the flip plate, and a pressure plate is fixed at the piston end of cylinder I; the three-way slide includes a longitudinal slide, a vertical slide, and a transverse slide; the longitudinal slide includes a trapezoidal slide groove 5-1, a cylinder II 5-2, and a sliding column 5-3, the trapezoidal slide groove is two, respectively fixed on the worktable surface on both sides of the hinge of the fixed plate and the flip plate; the sliding column is a rectangular column and there are two of them, the bottom of which is slidably installed in the trapezoidal slide groove; the cylinder II is fixed at the end of the trapezoidal slide groove, and its piston end is connected to the bottom of the sliding column; the vertical slide includes a rectangular slide groove I, a cylinder II 5-2, a cylinder II 5-3, a cylinder II 5-4, a cylinder II 5-5-2, a cylinder II 5-5-3 ...2, a cylinder II 5-5-3, a cylinder II 5-5-2, a cylinder II 5-5-2, a cylinder II 5-5-2, a cylinder II 5-5-2, a cylinder II 5-5-2, a cylinder II 5-5-2, a cylinder II 5-5-2, a cylinder II 5-5-2, a cylinder II 5- The system comprises cylinder Ⅲ 5-4 and slide rod 5-5; the rectangular slide groove Ⅰ is located on the opposite side of the two slide columns; the slide rod is a rectangular rigid long rod, with both ends slidably installed in the rectangular slide groove Ⅰ, and a rack is provided on the top surface of the slide rod; cylinder Ⅲ is installed on the top surface of the slide column, and its piston end is connected to the end of the slide rod; the transverse slide includes rectangular slide groove Ⅱ, slider 5-6, and motor Ⅱ 5-7; the rectangular slide groove Ⅱ is symmetrically arranged on two sides of the slide rod; the slider is a rectangular block, slidably installed on the slide rod; the motor Ⅱ is fixed on the upper surface of the slider, and a gear Ⅱ is fixed on the rotating shaft of the motor Ⅱ, and the gear Ⅱ meshes with the rack on the top surface of the slide rod; the three-head milling tool includes a base 6-1 and a rotating shaft 6-2; the base is a flat cylinder that can rotate. Fixed to the right side of the slider; the rotating shaft consists of three shafts, each fixed at right angles to the radial direction of the base; a flat milling cutter, a tapered milling cutter, and a pin milling cutter are respectively mounted on the three rotating shafts; the bending mechanism includes a pressing mechanism and a rolling mechanism; the pressing mechanism includes a pressure rod 7-1, a fixed seat 7-2, and a connecting rod 7-3; the pressure rod is a rectangular rigid long rod, with both ends connected to the fixed seat via connecting rods, and the fixed seat is fixedly installed at both ends of the left side of the slider; the rolling mechanism includes a bending head 7-4, a pressure roller 7-5, and a support plate 7-6; the support plate is a rectangular plate, with its upper end fixed to the left side of the slider; the bending head is a rigid twisted plate, with its rear end fixed to the front side of the support plate; the pressure roller is a rigid column, and there are two of them, fixed side by side to the lower end of the support plate;The bending head has a twist angle of 90 degrees. The horizontal plane of the front end of the bending head is at least n mm lower than the bottom surface of the pressure rod. The vertical plane of the rear end of the bending head is on the same plane as the pressure roller and is n mm away from the left side of the pressure rod; where n is the thickness of the upper panel of the aluminum honeycomb panel to be bent. The function, usage, and beneficial technical effects of the aluminum honeycomb panel right-angle bending device of this invention will be described together with the introduction of the aluminum honeycomb panel right-angle bending method of this invention.

[0048] The present invention provides a method for right-angle bending of aluminum honeycomb panels, which uses the present invention's aluminum honeycomb panel right-angle bending device to bend the aluminum honeycomb panel at a right angle, including the following steps:

[0049] S01. Place the aluminum honeycomb panel to be bent on the surface of the fixed plate and the flipping plate, and adjust the bending line of the aluminum honeycomb panel to be in the same vertical plane as the hinge axis of the fixed plate and the flipping plate; wherein, the bending line refers to the outer apex angle line of the right angle formed after the aluminum honeycomb panel is bent at a right angle;

[0050] S02. Activate cylinder I. The piston of cylinder I pushes the pressure plate forward. The pressure plate clamps the aluminum honeycomb panel to be bent on the surface of the fixed plate and the flipping plate.

[0051] S03. Rotate the base of the three-head milling machine so that the face milling cutter is vertically downward; wherein, the diameter of the face milling cutter is...

[0052] S04. Activate cylinder II. Cylinder II pushes the slide column to a position where the axis of the flat end mill is offset to the left by 1 mm relative to the bend line. It is easy to understand that the purpose of the offset is to avoid the shank of the tapered end mill. Therefore, the value of the offset is related to the diameter of the tapered end mill shank.

[0053] S05. Activate cylinder III. Cylinder III pushes the slide bar down to a position where the lower end face of the milling cutter is flush with the lower surface of the upper panel of the aluminum honeycomb panel to be bent.

[0054] S06. Turn on the spindle of the end mill; at the same time, turn on motor II. Motor II pushes the slider to move, and the end mill begins to perform milling, machining a strip-shaped notch on the upper panel of the aluminum honeycomb panel to be bent; after the machining is completed, the slide bar and slider return to the starting position.

[0055] S07. Rotate the base of the three-head milling machine so that the tapered end mill is vertically downward; wherein the lower apex angle of the tapered end mill is 90 degrees, and the height of the tapered end mill is h. 2 +(0.1-0.3)mm, the width of the cone is

[0056] S08. Activate cylinder II. Cylinder II pushes the slide column to a position where the axis of the tapered milling cutter and the bend line are in the same vertical plane.

[0057] S09. Activate cylinder III. Cylinder III pushes the slide bar down to a position where the upper end face of the cone of the tapered milling cutter is flush with the lower surface of the upper panel of the aluminum honeycomb panel to be bent.

[0058] S10. Open the spindle of the tapered milling cutter; at the same time, turn on motor II. Motor II pushes the slider to move, and the tapered milling cutter begins milling to process a V-shaped notch in the filling core of the aluminum honeycomb panel to be bent; at the same time, a groove with a depth of 0.1-0.3mm is processed on the upper surface of the lower plate of the aluminum honeycomb panel to be bent, namely bending groove I; after processing, the slide rod and slider return to the starting position; it is easy to understand that at this time, a section of the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent is suspended, that is, the filling core on the lower side of the upper panel has been cut off.

[0059] S11. Rotate the base of the three-head milling machine so that the needle end mill is vertically downward;

[0060] S12. Activate cylinder II. Cylinder II pushes the slide column to move the axis of the needle end mill to the right relative to the bend line. Location;

[0061] S13. Activate cylinder III. Cylinder III pushes the slide bar down to a position where the tip of the needle milling cutter is 0.1-0.3mm below the upper surface of the panel of the aluminum honeycomb plate to be bent.

[0062] S14. Start the spindle of the needle milling cutter; at the same time, start motor II. Motor II pushes the slider to move, and the needle milling cutter begins milling to process a groove with a depth of 0.1-0.3mm on the upper surface of the aluminum honeycomb panel to be bent, namely bending groove II; after processing, the slide rod and slider return to the starting position; it is easy to understand that the position of bending groove II corresponds to the boundary of the suspended section of the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent. Bending groove II is actually the bending straight line of the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent.

[0063] S15. Rotate the base of the three-head milling machine so that the side of the base without the rotating shaft is vertically downward.

[0064] S16. Activate cylinder II. Cylinder II pushes the slide column to a position where the left side of the pressure rod of the pressing mechanism is in the same vertical plane as the bending line.

[0065] S17. Activate cylinder III. Cylinder III pushes the slide bar down to the position where the bottom surface of the pressure bar just contacts the upper surface of the upper panel of the aluminum honeycomb panel to be bent. At this time, the front horizontal plane of the bending head of the roller pressing mechanism is just below the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent.

[0066] S17. Start motor II. Motor II pushes the slider to move, and the bending head of the roller pressing mechanism begins to perform bending processing. That is, the horizontal and twisted surfaces of the front end of the bending head of the roller pressing mechanism bend the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent upwards by 90 degrees along the bending groove II, and then roll it through the pressure roller to form an L-shaped flange. After processing, the slide rod and slider return to the starting position. Since the twisting angle of the bending head is 90 degrees, the bending process of the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent is gradual. In addition, before bending, the upper surface of the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent has a bending groove II. Therefore, the L-shaped flange on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent should be processed smoothly and the processing quality can be fully guaranteed.

[0067] S18. Turn on motor I. Motor I pushes the flipping plate to rotate 90 degrees to one side of the fixed plate through the sector gear, so that the left part of the V-shaped notch of the aluminum honeycomb panel to be bent bends 90 degrees along the bending groove I, thus completing the right-angle bending of the aluminum honeycomb panel.

[0068] S19. Reverse start motor I, motor I pushes the tilting plate back to the horizontal position through the sector gear;

[0069] S20. Reverse opening cylinder I, cylinder I piston moves backward, pressure plate releases the aluminum honeycomb panel to be bent; remove the bent aluminum honeycomb panel, bending process is complete.

[0070] Among them, h 1 h represents the thickness of the aluminum honeycomb panel to be bent. 2 The thickness of the filling core for the aluminum honeycomb panel to be bent is 1-3mm.

[0071] As can be seen from the above processing procedure, the aluminum honeycomb panel right-angle bending device and method of the present invention uses right-angle bending instead of right-angle assembly, and can bend the aluminum honeycomb panel at a right angle in one go. This not only solves the problems of poor strength and rigidity after right-angle assembly, but also effectively improves the processing efficiency, performance, and appearance quality of aluminum alloy furniture. It should be noted that when the flipping plate drives the aluminum honeycomb panel to be bent to bend 90 degrees in step S18, the pressure rod continuously applies pressure to the inner angle of the bend; at the same time, the lower plate of the aluminum honeycomb panel to be bent has a bending groove I processed. Therefore, the right-angle bending of the aluminum honeycomb panel to be bent should be relatively regular and completely feasible, and its bending quality can be fully guaranteed.

[0072] As one of the preferred technical solutions, a buffer spring 7-7 is fitted on the outer side of the connecting rod between the pressure rod and the fixed seat, and the connecting rod and the fixed seat are slidably connected (see Appendix). Figure 8The buffer spring provides cushioning when the bottom surface of the pressure rod contacts the upper surface of the aluminum honeycomb panel to be bent. When the aluminum honeycomb panel to be bent has different thicknesses or is not placed evenly, the pressure rod will not deform or damage the upper surface of the aluminum honeycomb panel to be bent because the bottom surface of the pressure rod is not completely at the same height or plane.

[0073] As one of the preferred technical solutions, the aluminum honeycomb panel right-angle bending device is further provided with an adhesive application mechanism 8; the adhesive application mechanism is installed on the left front side of the roller pressing mechanism support plate, and includes an adhesive bucket 8-1, an adhesive roller 8-2, and a Z-shaped support rod 8-3; the adhesive bucket is installed on the left front side of the roller pressing mechanism support plate, the Z-shaped support rod is a hollow support rod, one end of which is rotatably installed on the bottom surface of the adhesive bucket; the adhesive roller is a cylindrical foam structure, which is rotatably installed on the other end of the Z-shaped support rod (see Appendix). Figure 12 The adhesive application mechanism is set up so that after the roller pressing mechanism completes the 90-degree bend of the upper right side of the V-shaped notch on the upper panel of the aluminum honeycomb panel to be bent in step S17, before the slider returns to the starting position, the Z-shaped support rod is rotated at a set angle so that the adhesive roller contacts the outer surface of the L-shaped flange on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent. During the process of the slider returning to the starting position, the adhesive roller applies adhesive to the outer surface of the L-shaped flange. When the flipping plate drives the aluminum honeycomb panel to be bent at a 90-degree angle in step S18, the upper surface of the upper panel on the left side of the V-shaped notch will contact the outer surface of the L-shaped flange, so that the outer surface of the L-shaped flange and the upper surface of the upper panel on the left side of the V-shaped notch form an adhesive structure. This can effectively increase the connection strength between the two, thereby effectively improving the strength and rigidity of the aluminum honeycomb panel under right-angle bends. The use of a hollow Z-shaped support rod can ensure that the adhesive flows from the adhesive bucket to the adhesive roller, thus ensuring the application effect of the adhesive roller.

[0074] Obviously, the beneficial technical effect of the aluminum honeycomb panel right-angle bending device and method of the present invention is that it replaces right-angle assembly with right-angle bending, and can bend the aluminum honeycomb panel at right angles in one go. This not only solves the problems of poor strength and rigidity after right-angle assembly, but also effectively improves the processing efficiency, performance and appearance quality of aluminum alloy furniture.

Claims

1. A right-angle bending device for aluminum honeycomb panels, characterized in that, The device includes a base, a tilting mechanism, a three-way slide, a three-head milling machine, and a bending mechanism. The base is a rectangular frame structure with its surface serving as a worktable. The tilting mechanism is installed in the center of the worktable and includes a fixed plate, a tilting plate, a sector gear, a motor I, and a cylinder I. The fixed plate is rectangular and fixed to the right side of the worktable. The tilting plate is rectangular and placed adjacent to the fixed plate on the left side of the worktable. The adjacent sides of the fixed plate and the tilting plate are hinged together. A sector gear is provided on the bottom surface of the tilting plate, and a rectangular slot is provided on the worktable corresponding to the sector gear. The motor I is fixed to the bottom surface of the worktable, and a gear I is fixed on the shaft of the motor I, with gear I meshing with the sector gear passing through the rectangular slot. The cylinder... At least eight cylinders are fixed symmetrically in pairs on both sides of the surface of the fixed plate and the flip plate, and a pressure plate is fixed to the piston end of cylinder I; the three-way slide includes a longitudinal slide, a vertical slide, and a transverse slide; the longitudinal slide includes a trapezoidal groove, cylinder II, and a sliding column, and there are two trapezoidal grooves, which are respectively fixed on the worktable on both sides of the hinge of the fixed plate and the flip plate; there are two rectangular columns, and their bottoms are slidably installed in the trapezoidal groove; cylinder II is fixed at the end of the trapezoidal groove, and its piston end is connected to the bottom of the sliding column; the vertical slide includes a rectangular groove I, cylinder III, and a sliding rod; the rectangular groove I is set on the opposite side of the two sliding columns; the sliding rod is a rectangular rigid long rod, and its two ends are slidably installed on the rectangular groove. The slide bar has a rack on its top surface and a groove I. The cylinder III is mounted on the top surface of the slide column, with its piston end connected to the end of the slide bar. The transverse slide includes a rectangular groove II, a slider, and a motor II. The rectangular groove II is symmetrically arranged on two sides of the slide bar. The slider is a rectangular block that slides on the slide bar. The motor II is fixed to the upper surface of the slider, and a gear II is fixed on the shaft of the motor II, meshing with the rack on the top surface of the slide bar. The three-head milling tool includes a base and a rotating shaft. The base is a flat cylinder that is rotatably fixed to the right side of the slider. Three rotating shafts are fixed at right angles to the radial direction of the base. A flat milling cutter, a tapered milling cutter, and a pin milling cutter are respectively mounted on the three rotating shafts. The bending mechanism includes a pressing mechanism. The mechanism includes a pressing mechanism and a roller pressing mechanism; the pressing mechanism includes a pressing rod, a fixed seat, and a connecting rod; the pressing rod is a rectangular rigid long rod, with both ends connected to the fixed seat through the connecting rod, and the fixed seat is fixedly installed at both ends on the left side of the slide rod; the roller pressing mechanism includes a bending head, a pressure roller, and a support plate; the support plate is a rectangular plate, with its upper end fixed to the left side of the slide rod; the bending head is a rigid twisted plate, with its rear end fixed to the front side of the support plate; the pressure roller is a rigid column, and there are two of them, which are fixed side by side to the lower end of the support plate; wherein, the twisting angle of the bending head is 90 degrees, the horizontal plane of the front end of the bending head is more than n mm lower than the bottom surface of the pressing rod, and the vertical plane of the rear end of the bending head is on the same plane as the cylindrical surface of the pressure roller and is n mm away from the left side of the pressing rod; wherein, n is the thickness of the upper panel of the aluminum honeycomb plate to be bent.

2. The aluminum honeycomb panel right-angle bending device according to claim 1, characterized in that, A buffer spring is fitted on the outside of the connecting rod between the pressure rod and the fixed seat, and the connecting rod and the fixed seat are slidably connected.

3. The aluminum honeycomb panel right-angle bending device according to claim 1, characterized in that, The aluminum honeycomb panel right-angle bending device is also equipped with an adhesive application mechanism; the adhesive application mechanism is installed on the left front side of the roller pressing mechanism support plate and includes an adhesive bucket, an adhesive roller and a Z-shaped support rod; the adhesive bucket is installed on the left front side of the roller pressing mechanism support plate, the Z-shaped support rod is a hollow support rod, one end of which is rotatably installed on the bottom surface of the adhesive bucket; the adhesive roller is a cylindrical foam structure and is rotatably installed on the other end of the Z-shaped support rod.

4. A method for right-angle bending of an aluminum honeycomb panel, characterized in that, The aluminum honeycomb panel is bent at a right angle using the aluminum honeycomb panel right-angle bending device according to any one of claims 1 to 3, comprising the following steps: S01. Place the aluminum honeycomb panel to be bent on the surface of the fixed plate and the flipping plate, and adjust the bending line of the aluminum honeycomb panel to be in the same vertical plane as the hinge axis of the fixed plate and the flipping plate; wherein, the bending line refers to the outer apex angle line of the right angle formed after the aluminum honeycomb panel is bent at a right angle; S02. Activate cylinder I. The piston of cylinder I pushes the pressure plate forward. The pressure plate clamps the aluminum honeycomb panel to be bent on the surface of the fixed plate and the flipping plate. S03. Rotate the base of the three-head milling machine so that the face milling cutter is vertically downward; wherein, the diameter of the face milling cutter is... S04. Activate cylinder II. Cylinder II pushes the slide column to a position where the axis of the end mill is offset to the left by 1 mm relative to the bend line. S05. Activate cylinder III. Cylinder III pushes the slide bar down to a position where the lower end face of the milling cutter is flush with the lower surface of the upper panel of the aluminum honeycomb panel to be bent. S06. Turn on the spindle of the end mill; at the same time, turn on motor II. Motor II pushes the slider to move, and the end mill begins to perform milling, machining a strip-shaped notch on the upper panel of the aluminum honeycomb panel to be bent; after the machining is completed, the slide bar and slider return to the starting position. S07. Rotate the base of the three-head milling machine so that the tapered end mill is vertically downward; wherein the lower apex angle of the tapered end mill is 90 degrees, and the height of the tapered end mill is h. 2 +(0.1-0.3)mm, the width of the cone is S08. Activate cylinder II. Cylinder II pushes the slide column to a position where the axis of the tapered milling cutter and the bend line are in the same vertical plane. S09. Activate cylinder III. Cylinder III pushes the slide bar down to a position where the upper end face of the cone of the tapered milling cutter is flush with the lower surface of the upper panel of the aluminum honeycomb panel to be bent. S10. Open the spindle of the tapered milling cutter; at the same time, turn on motor II, motor II pushes the slider to move, and the tapered milling cutter begins milling to process a V-shaped notch in the filling core of the aluminum honeycomb panel to be bent; at the same time, process a groove with a depth of 0.1-0.3mm on the upper surface of the lower plate of the aluminum honeycomb panel to be bent, namely bending groove I; after processing, the slide bar and slider return to the starting position; S11. Rotate the base of the three-head milling machine so that the needle end mill is vertically downward; S12. Activate cylinder II. Cylinder II pushes the slide column to move the axis of the needle end mill to the right relative to the bend line. Location; S13. Activate cylinder III. Cylinder III pushes the slide bar down to a position where the tip of the needle milling cutter is 0.1-0.3mm below the upper surface of the panel of the aluminum honeycomb plate to be bent. S14. Turn on the spindle of the needle milling cutter; at the same time, turn on motor II. Motor II pushes the slider to move, and the needle milling cutter begins to perform milling, machining a groove with a depth of 0.1-0.3mm on the upper surface of the aluminum honeycomb panel to be bent, namely bending groove II; after the machining is completed, the slide bar and slider return to the starting position. S15. Rotate the base of the three-head milling machine so that the side of the base without the rotating shaft is vertically downward. S16. Activate cylinder II. Cylinder II pushes the slide column to a position where the left side of the pressure rod of the pressing mechanism is in the same vertical plane as the bending line. S17. Activate cylinder III. Cylinder III pushes the slide bar down to the position where the bottom surface of the pressure bar just contacts the upper surface of the upper panel of the aluminum honeycomb panel to be bent. At this time, the front horizontal plane of the bending head of the roller pressing mechanism is just below the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent. S17. Start motor II. Motor II pushes the slider to move, and the bending head of the roller pressing mechanism begins to perform bending processing. That is, the horizontal and twisted surfaces at the front end of the bending head of the roller pressing mechanism bend the upper panel on the right side of the V-shaped notch of the aluminum honeycomb panel to be bent upwards by 90 degrees along the bending groove II, and then roll it through the pressure roller to form an L-shaped flange. After the processing is completed, the slide bar and slider return to the starting position. S18. Turn on motor I. Motor I pushes the flipping plate to rotate 90 degrees to one side of the fixed plate through the sector gear, so that the left part of the V-shaped notch of the aluminum honeycomb panel to be bent bends 90 degrees along the bending groove I, thus completing the right-angle bending of the aluminum honeycomb panel. S19. Reverse start motor I, motor I pushes the flip plate back to the horizontal position through the sector gear; S20. Reverse opening cylinder I, cylinder I piston moves backward, pressure plate releases the aluminum honeycomb panel to be bent; remove the bent aluminum honeycomb panel, bending process is complete. Among them, h 1 h represents the thickness of the aluminum honeycomb panel to be bent. 2 The thickness of the filling core for the aluminum honeycomb panel to be bent is 1-3mm.

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