A portable profile trimming device

Abstract

This invention provides a portable annular surface trimming device, comprising a long column, a short column, a panel milling guide beam assembly, a dual zero-point positioning component tray, a motion component, and a motion end shell. The upper surfaces of the long and short columns are respectively fixedly mounted on the two end legs of the panel milling guide beam assembly by the dual zero-point positioning component tray, with their lower surfaces in contact with the ground. The motion end shell covers the outer surface of the motion component, which is fixedly mounted on the side surface of the panel milling guide beam assembly. The product to be processed is placed below the motion component, which reciprocates on the side surface of the panel milling guide beam assembly to trim the surface. This device features a compact structure, precise positioning, good stability, convenient movement, pneumatic drive, strong applicability, and easy operation, achieving maximum lightweighting and integration.

Description

Technical Field

[0001] This application relates to the field of aircraft manufacturing technology, and in particular to a portable composite skin profile trimming device. Background Technology

[0002] In the assembly process of large aircraft structural surfaces, positioning is a critical process. The product handover status before the surface is mounted often depends on factors such as the stability of each stage and the actual assembly situation. Especially in the early stages, assembly allowances are usually left around each surface, including edge allowances and lug allowances. These surface allowances must be removed after assembly is completed.

[0003] The main problems encountered during production are as follows: most profiles can only be removed and trimmed on the assembly rack, making them highly susceptible to environmental influences. The removal of lugs and the trimming of profiles are done manually, which is inefficient, time-consuming, and lacks precision, with significant human error. Processing efficiency is low (removing a single lug takes 8 minutes), cutting accuracy is poor (to avoid damaging parts, a large cutting allowance of 0.5mm or more is required), resulting in irregular edges that necessitate trimming and grinding, leading to high labor intensity and safety hazards.

[0004] To address a series of problems encountered in the current milling process of composite skin lugs, there is an urgent need to develop a compact, easily movable, pneumatically driven device that maximizes weight reduction and integration. This device offers precise positioning and good stability, employing a three-point clamping positioning method to ensure rapid and accurate positioning. It is highly adaptable, easy to operate, and eliminates the need for frequent panel hoisting, reducing the risk of impact damage. This equipment can perform milling on and off assembly racks at various stations on different aircraft, solving the problem of excess material milling for large aircraft skins and shortening parts delivery cycles. Furthermore, by changing the cutting tools and modifying the milling process parameters, its application can be expanded to milling excess material for other materials. Summary of the Invention

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A portable annular surface trimming device includes a long column, a short column, a panel milling guide beam assembly, a double zero-point positioning component tray, a motion component, and a motion end shell. The upper surfaces of the long column and the short column are respectively fixedly mounted on the two end legs of the panel milling guide beam assembly by the double zero-point positioning component tray, and their lower surfaces are in contact with the ground. The motion end shell is wrapped around the outer surface of the motion component, which is fixedly mounted on the side surface of the panel milling guide beam assembly. The product to be processed is placed below the motion component, and the motion component reciprocates on the side surface of the panel milling guide beam assembly to trim the surface.

[0007] The panel milling guide beam assembly includes a timing belt mounting plate, an upper panel milling guide beam, two mounting rings, a timing belt, a zero-point workstation tray, two clamping strips, and two arc-shaped slides. The two ends of the lower surface of the upper panel milling guide beam are fixedly connected to the upper surfaces of the long and short columns by a double zero-point positioning assembly. The timing belt mounting plate has an "L"-shaped structure, with the large end fixedly installed in the middle of the side surface of the upper panel milling guide beam. The two mounting rings are respectively fixedly installed at both ends of the upper surface of the upper panel milling guide beam. The timing belt is fixedly installed at the small end of the timing belt mounting plate. The two clamping strips are respectively fixedly installed at both ends of the timing belt to fix and clamp it. The two arc-shaped slides are fixedly installed on the upper and lower sides of the side surface of the upper panel milling guide beam. One side of the zero-point workstation tray is fixedly installed on the upper surface of the slider of the two arc-shaped slides, and the other side is connected to the motion assembly.

[0008] The motion assembly includes a base plate, a milling assembly, and a traveling assembly. The milling assembly and the traveling assembly are fixedly mounted side by side on one side of the base plate, and the other side of the base plate is fixedly mounted on the zero-point tray of the wall panel milling guide beam assembly. The zero-point tray drives the entire motion assembly to reciprocate on the arc-shaped slide of the wall panel milling guide beam assembly to perform surface trimming.

[0009] The milling assembly includes an assembly block, a sliding integrated block, a handwheel mounting base, a measuring gauge mounting plate, a baffle, an integrated connecting plate, an adapter plate, an extension column, a dust collection assembly, a lifting assembly, two handles, two slide rail assemblies, two guide rail locks, an eccentric handwheel, a tension spring, a pneumatic motor, and a milling cutter. The assembly block has a "door" shaped structure. The two slide rail assemblies are fixedly installed on both sides of the internal structure of the assembly block, and the two guide rail locks are fixedly installed on the front ends of the two slide rail assemblies. The sliding integrated block has a "U" shaped structure, with its two sides fixed to the upper ends of the sliders on the two slide rail assemblies. The pneumatic motor is embedded in the middle of the sliding integrated block, and the milling cutter is fixedly connected to the lower part of the pneumatic motor. The product to be processed is placed below the milling cutter according to the position to be trimmed, and the sliding integrated block drives the milling. The cutting tool reciprocates to trim the product surface. The handwheel mounting base is fixedly installed on the outer surface of one side of the assembly block. The upper end of the handwheel mounting base is fixedly connected to the front end of the tension spring, and the lower end is fixedly connected to the front end of the eccentric handwheel. The end of the tension spring and the end of the eccentric handwheel are connected to the adapter plate. The adapter plate passes through the opening gap of the assembly block and connects to the side surface of the integrated connecting plate. The lower surface of the integrated connecting plate is connected to the upper surface of the sliding integrated block. The other side surface of the integrated connecting plate is connected to the measuring instrument mounting plate. The extension column is fixedly installed on the upper end of the milling assembly on the base plate and interacts with the measuring instrument mounting plate. The dust collection assembly is connected to the lower surface of the assembly block to perform dust collection during the entire milling process. The lifting assembly is fixedly installed on the upper end of one side of the base plate and plays an important role in the movement of the entire trimming equipment.

[0010] The vacuuming assembly includes an extension cover, a curved tube, a nesting body, a vacuum hood, four armatures, four magnets, and a brush. The extension cover is a square shell unit, with its upper surface connected to the lower surface of the assembly block. The four armatures are fixedly installed at the four corners of the lower end of the extension cover. The nesting body is the same size as the extension cover, and the four magnets are fixedly installed on the upper surface of the nesting body. The extension cover and the nesting body are connected by magnetic attraction between the armatures and the magnets. The vacuum hood is fixedly installed on the lower surface of the nesting body, and the brush is attached around the vacuum hood, providing a wrapping and protective function for the entire vacuuming assembly.

[0011] The walking assembly includes a synchronous pulley, a motor connecting plate, a pneumatic motor, an adapter plate, and a cylinder. The synchronous pulley meshes with the synchronous belt in the wall panel milling guide beam assembly. The pneumatic motor is fixedly mounted on the rear end of the synchronous pulley by the motor connecting plate, driving the entire moving assembly to move along the synchronous belt. The lower surface of the pneumatic motor connecting plate is fixedly mounted on the upper surface of the adapter plate, and the lower surface of the adapter plate is connected to the cylinder. When the entire moving assembly moves to the required fixed position, the cylinder starts to act, causing the entire walking assembly to adhere and fix.

[0012] The advantages of this application lie in solving the problems of current methods, which are heavily influenced by environmental factors, rely on manual grinding for trimming, resulting in low efficiency, time-consuming processes, and inconsistent precision, and are significantly affected by human factors. This equipment features a compact structure, precise positioning, good stability, easy mobility, pneumatic drive, strong applicability, and convenient operation, maximizing the weight reduction and integration of the entire device. Frequent hoisting of wall panels is eliminated, reducing the risk of impact damage. Furthermore, by changing the cutting tools and modifying the milling process parameters, its application can be expanded to milling allowances for other materials.

[0013] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 Portable ring-shaped surface trimming equipment structural diagram

[0015] Figure 2 Enlarged view of the left side of the motion component

[0016] Figure 3 Enlarged view of the right side of the motion component

[0017] Figure 4 Front sectional view of milling equipment

[0018] Numbering in the diagram: 1. Long column; 2. Short column; 3. Panel milling guide beam assembly; 4. Double zero-point positioning assembly tray; 5. Motion assembly; 6. Motion end housing; 7. Synchronous belt mounting plate; 8. Upper panel milling guide beam; 9. Mounting ring; 10. Synchronous belt; 11. Station zero-point tray; 12. Pressure strip; 13. Arc-shaped slide; 14. Base plate; 15. Milling assembly; 16. Traveling assembly; 17. Assembly block; 18. Sliding integrated block; 19. Handwheel mounting base; 20. Measuring gauge mounting plate; 21. 21. Baffle; 22. Integrated connecting plate; 23. Adapter plate; 24. Extension column; 25. Dust collection assembly; 26. Lifting assembly; 27. Handle; 28. Slide rail assembly; 29. ​​Guide rail lock; 30. Eccentric handwheel; 31. Tension spring; 32. Pneumatic motor; 33. Milling cutter; 34. Extension cover; 35. Bend; 36. Nested body; 37. Dust collection hood; 38. Armature; 39. Magnet; 40. Brush; 41. Synchronous pulley; 42. Motor connecting plate; 43. Pneumatic motor; 44. Motor adapter plate; 45. Cylinder. Detailed Implementation

[0019] See Figure 1-4 A portable annular surface trimming device includes a long column 1, a short column 2, a panel milling guide beam assembly 3, a double zero-point positioning component tray 4, a motion component 5, and a motion end shell 6. The upper surfaces of the long column 1 and the short column 2 are respectively fixedly mounted on the two end legs of the panel milling guide beam assembly 3 by the double zero-point positioning component tray 4, and their lower surfaces are in contact with the ground. The motion end shell 6 is wrapped around the outer surface of the motion component 5. The motion component 5 is fixedly mounted on the side surface of the panel milling guide beam assembly 3. The product to be processed is placed below the motion component 5, and the motion component 5 reciprocates on the side surface of the panel milling guide beam assembly 3 to trim the surface.

[0020] The wall panel milling guide beam assembly 3 includes a timing belt mounting plate 7, an upper wall panel milling guide beam 8, two mounting rings 9, a timing belt 10, a station zero point tray 11, two clamping strips 12, and two arc-shaped slides 13. The two ends of the lower surface of the upper wall panel milling guide beam 8 are fixedly connected to the upper surfaces of the long column 1 and the short column 2 by the double zero point positioning assembly tray 4. The timing belt mounting plate 7 has an "L" shaped structure, with the large end fixedly installed in the middle position of the side surface of the upper wall panel milling guide beam 8. The two mounting rings 9 are respectively fixedly installed at both ends of the upper surface of the upper wall panel milling guide beam 8. The timing belt 10 is fixedly installed at the small end of the timing belt mounting plate 7. The two clamping strips 12 are respectively fixedly installed at both ends of the timing belt 10, which serves to fix and clamp the timing belt 10. The two arc-shaped slides 13 are fixedly installed on the upper and lower sides of the side surface of the upper wall panel milling guide beam 8. One side of the station zero point tray 11 is fixedly installed on the upper surface of the slider of the two arc-shaped slides 13, and the other side is connected to the motion assembly 5.

[0021] The motion assembly 5 includes a base plate 14, a milling assembly 15, and a traveling assembly 16. The milling assembly 15 and the traveling assembly 16 are fixedly mounted side by side on one side surface of the base plate 14. The other side surface of the base plate 14 is fixedly mounted on the zero point tray 11 of the wall panel milling guide beam assembly 3. The zero point tray 11 drives the entire motion assembly 5 to reciprocate on the arc-shaped slide 13 of the wall panel milling guide beam assembly 3 to perform surface trimming.

[0022] The milling assembly 15 includes an assembly block 17, a sliding integrated block 18, a handwheel mounting base 19, a measuring gauge mounting plate 20, a baffle 21, an integrated connecting plate 22, an adapter plate 23, an extension column 24, a dust collection assembly 25, a lifting assembly 26, two handles 27, two slide rail assemblies 28, two guide rail locks 29, an eccentric handwheel 30, a tension spring 31, a pneumatic motor 32, and a milling cutter 33. The assembly block 17 has a "door" shaped structure. The two slide rail assemblies 28 are fixedly installed on both sides of the internal structure of the assembly block 17. The two guide rail locks 29 are fixedly installed on the front ends of the two slide rail assemblies 28. The sliding integrated block 18 has a "U" shaped structure. Its two sides are respectively fixed to the upper ends of the sliders on the two slide rail assemblies 28. The pneumatic motor 32 is embedded in the middle of the sliding integrated block 18. The milling cutter 33 is fixedly connected to the lower part of the pneumatic motor 32. The product to be processed is placed below the milling cutter 33 according to the position to be trimmed. The assembly 18 drives the milling cutter 33 to reciprocate and trim the product surface. The handwheel mounting base 19 is fixedly installed on the outer surface of one side of the assembly 17. The upper end of the handwheel mounting base 19 is fixedly connected to the front end of the tension spring 31, and the lower end is fixedly connected to the front end of the eccentric handwheel 30. The end of the tension spring 31 and the end of the eccentric handwheel 30 are connected to the adapter plate. The adapter plate 23 passes through the opening gap of the assembly 17 and is connected to the side surface of the integrated connecting plate 22. The lower surface of the integrated connecting plate 22 is connected to the upper surface of the sliding integrated block 18. The other side surface of the integrated connecting plate 22 is connected to the measuring instrument mounting plate 20. The extension column 24 is fixedly installed on the upper end of the milling assembly 15 on the base plate 14 and interacts with the measuring instrument mounting plate 20. The dust collection assembly 25 is connected to the lower surface of the assembly 17 and performs dust collection treatment for the entire milling process. The lifting assembly 26 is fixedly installed on the upper side of one side of the base plate 14 and plays an important role in the movement of the entire trimming equipment.

[0023] The vacuuming assembly 25 includes an extension cover 34, a curved tube 35, a nesting body 36, a vacuum hood 37, four armatures 38, four magnets 39, and a brush 40. The extension cover 34 is a square shell unit, the upper surface of which is connected to the lower surface of the assembly block 17. The four armatures 38 are respectively fixedly installed at the four corners of the lower end of the extension cover 34. The nesting body 36 is the same size as the extension cover 34. The four magnets 39 are respectively fixedly installed on the upper surface of the nesting body 36. The extension cover 34 and the nesting body 36 are connected by magnetic attraction between the armatures 38 and the magnets 39. The vacuum hood 37 is fixedly installed on the lower surface of the nesting body 36. The brush 40 is pasted around the vacuum hood 37, which plays a role in wrapping and protecting the entire vacuuming assembly 25.

[0024] The walking assembly 16 includes a synchronous pulley 41, a motor connecting plate 42, a pneumatic motor 43, an adapter plate 44, and a cylinder 45. The synchronous pulley 41 meshes with the synchronous belt 10 in the wall panel milling guide beam assembly 3. The pneumatic motor 43 is fixedly installed at the rear end of the synchronous pulley 41 by the motor connecting plate 42, driving the entire moving assembly 5 to move along the synchronous belt 10. The lower surface of the pneumatic motor connecting plate 42 is fixedly installed on the upper surface of the adapter plate 44. The lower surface of the adapter plate 44 is connected to the cylinder 45. When the entire moving assembly 5 moves to the required fixed position, the cylinder 45 starts to act, causing the entire walking assembly 16 to be attracted and fixed.

[0025] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A portable annular surface trimming device, characterized in that... The system includes a long column, a short column, a panel milling guide beam assembly, a double zero-point positioning component tray, a motion component, and a motion end shell. The upper surfaces of the long and short columns are fixedly mounted on the two end legs of the panel milling guide beam assembly by the double zero-point positioning component tray, with their lower surfaces in contact with the ground. The motion end shell covers the outer surface of the motion component, which is fixedly mounted on the side surface of the panel milling guide beam assembly. The product to be processed is placed below the motion component, which reciprocates on the side surface of the panel milling guide beam assembly to trim the surface. The panel milling guide beam assembly includes a timing belt mounting plate, an upper panel milling guide beam, two mounting rings, a timing belt, a zero-point workstation tray, two clamping strips, and two arc-shaped slides. The two ends of the lower surface of the upper panel milling guide beam are fixedly connected to the upper surfaces of the long and short columns by the double zero-point positioning component. The timing belt mounting plate is... The structure is L-shaped, with the large end fixedly mounted in the middle of the side surface of the upper panel milling guide beam. Two mounting rings are fixedly mounted at both ends of the upper surface of the upper panel milling guide beam. The timing belt is fixedly mounted at the small end of the timing belt mounting plate. Two clamping strips are fixedly mounted at both ends of the timing belt to fix and clamp it. Two arc-shaped slides are fixedly mounted on the upper and lower sides of the side surface of the upper panel milling guide beam. One side of the zero-point tray is fixedly mounted on the upper surface of the sliders of the two arc-shaped slides, and the other side is connected to the motion assembly. The motion assembly includes a base plate, a milling assembly, and a traveling assembly. The milling assembly and the traveling assembly are fixedly mounted side by side on one side of the base plate. The other side of the base plate is fixedly mounted on the zero-point tray of the panel milling guide beam assembly. The zero-point tray drives the entire motion assembly to reciprocate on the arc-shaped slides of the panel milling guide beam assembly to perform profile trimming.The milling assembly includes an assembly block, a sliding integrated block, a handwheel mounting base, a measuring gauge mounting plate, a baffle, an integrated connecting plate, an adapter plate, an extension column, a dust collection assembly, a lifting assembly, two handles, two slide rail assemblies, two guide rail locks, an eccentric handwheel, a tension spring, a pneumatic motor, and a milling cutter. The assembly block has a "door" shaped structure. The two slide rail assemblies are fixedly installed on both sides of the internal structure of the assembly block, and the two guide rail locks are fixedly installed on the front ends of the two slide rail assemblies. The sliding integrated block has a "U" shaped structure, with its two sides fixed to the upper ends of the sliders on the two slide rail assemblies. The pneumatic motor is embedded in the middle of the sliding integrated block, and the milling cutter is fixedly connected to the lower part of the pneumatic motor. The product to be processed is placed below the milling cutter according to the position to be trimmed. The sliding integrated block drives the milling cutter... The cutting tool reciprocates to trim the product surface. A handwheel mounting base is fixedly installed on the outer surface of one side of the assembly block. The upper end of the handwheel mounting base is fixedly connected to the front end of a tension spring, and the lower end is fixedly connected to the front end of an eccentric handwheel. The end of the tension spring and the end of the eccentric handwheel are connected to an adapter plate. The adapter plate passes through the opening gap of the assembly block and connects to the side surface of the integrated connecting plate. The lower surface of the integrated connecting plate connects to the upper surface of the sliding integrated block. The other side surface of the integrated connecting plate connects to the measuring gauge mounting plate. An extension column is fixedly installed on the upper end of the milling assembly on the base plate, interacting with the measuring gauge mounting plate. A dust extraction assembly is connected to the lower surface of the assembly block to perform dust extraction during the entire milling process. A lifting assembly is fixedly installed on the upper side of one side of the base plate, playing a crucial role in the movement of the entire trimming equipment.

2. The portable annular surface trimming device according to claim 1, characterized in that... The vacuuming assembly includes an extension cover, a curved tube, a nested body, a vacuum hood, four armatures, four magnets, and a brush. The extension cover is a square shell unit, with its upper surface connected to the lower surface of the assembly block. The four armatures are fixedly installed at the four corners of the lower end of the extension cover. The nested body is the same size as the extension cover, and the four magnets are fixedly installed on the upper surface of the nested body. The extension cover and the nested body are connected by magnetic attraction between the armatures and the magnets. The vacuum hood is fixedly installed on the lower surface of the nested body, and the brush is pasted around the vacuum hood, providing a wrapping and protective function for the entire vacuuming assembly.

3. The portable annular surface trimming device according to claim 1, characterized in that... The walking assembly includes a synchronous pulley, a motor connecting plate, a pneumatic motor, an adapter plate, and a cylinder. The synchronous pulley meshes with the synchronous belt in the wall panel milling guide beam assembly. The pneumatic motor is fixedly mounted on the rear end of the synchronous pulley by the motor connecting plate, driving the entire moving assembly to move along the synchronous belt. The lower surface of the pneumatic motor connecting plate is fixedly mounted on the upper surface of the adapter plate, and the lower surface of the adapter plate is connected to the cylinder. When the entire moving assembly moves to the required fixed position, the cylinder starts to act, causing the entire walking assembly to adhere and fix.

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