JP2016090559A - Inversion machine of metal and hard surface large-plate material, and inspection system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inversion machine that improves the problems of handling and safety and prevents work itself from causing the scratching or the like, in a work of applying double-side inspection or oil coating to a metal plate and hard surface material of a thin large plate.SOLUTION: The inversion machine includes a fixture capable of clamping, at the end, a metal plate or hard surface material of a thin large plate whose front surface has been inspected and coated with oil. The large plate is conveyed onto a table of the inversion machine with a vacuum lifter, and is clamped via an elastomer material such as rubber. The large plate is rotated by 180° by rotating a handle of the inversion machine, then is conveyed from a lower part of the inversion machine. Thus, the surface inspection and oil coating process of the rear surface can be started.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a reversing machine and an inspection system that facilitate reversing the front and back surfaces of a large plate of metal and hard surface material for flaw inspection and the like.

  In an aircraft composed of a wide variety of processed parts, it is important to check the quality of the parts used in order to ensure safety. Various materials such as aluminum materials, carbon fibers, and plastics are used for aircraft bodies, and they are variously processed and assembled. The body part must have strength characteristics, and aluminum materials such as duralumin and ultra-duralumin 2000 series, 7000 series, and clad materials are also used.

  Large aluminum parts used for aircraft trunks, wings, etc., are mainly machined on a hot-rolled aluminum alloy thick plate (20 mm or more) to form a thin and light frame structure member. On the other hand, even when the same aluminum material is 5 mm or less (thin plate), hole processing (weight reduction) is performed mainly by press working, and it is often used as one part of a structural member. In the former thick plate material (20 mm or more), the outer surface portion is cut by machining (such as a machining center), and the influence of surface properties (surface wrinkles, corrosion) is small.

  On the other hand, since the plate surface is used as it is for parts by pressing, surface flaws and corrosion cause performance deterioration as a product. Therefore, surface inspection of a thin plate is very important, but it is difficult to handle because it is a large plate, and if it is impossible, there is a risk of surface flaws. Especially for aircraft, certified materials are used, and there are many materials from overseas. Therefore, special attention must be paid to inspection for flaws and corrosion during transportation.

  However, there is no established inspection method for such thin plate materials. Since the quantity is particularly small, automation is rarely considered. For this reason, it is generally considered that a person inverts and inspects, and a large plate of several tens of kilograms is inverted by two persons. Of course, although it reverses using a fulcrum well, there is a risk of surface flaws at the time of reversal (stacking), and it is difficult to ensure safety against heavy objects.

  Regarding reversing machines or overturning machines, practical examples are confirmed for mass-produced lines, those frequently used, and heavy objects (5 tons or more of coils, automobile molds, etc.).

  For example, in mass production, a reversing machine is recognized in the building material production line as in Document 1.

  Examples of frequently used ones include a drum can inversion machine as described in Reference 2, and for heavy objects, there are a coil, a mold, a concrete inversion machine (References 3 and 4), and the like. However, it is not possible to find an example in which an overturning machine or an inversion machine is used from the viewpoint of investment effect for a large plate having a small production amount and a weight of less than several hundred kg.

  Among them, a reversing machine for laminating plywood as in Reference 5 was confirmed as a reversing machine for applications close to the present invention. However, this method is a system using a conveyor, which causes a surface flaw that is disliked by the present case, and is a system that cannot inspect the front and back surfaces.

  When there is no dedicated reversing machine, a crane, a chain block, etc. are used as a general method. If it is lightweight (less than 100 kg), it can be handled by a plurality of hands and jigs. In particular, if it is the same size and weight, it can be reversed relatively stably. However, when the size and weight are changed, there are many problems in terms of quality assurance and safety work in the oiling work with surface inspection and reversal.

JP 2009-83100 A JP-A-6-166436 JP 2007-166436 A Japanese Utility Model Publication No. 6-20341 JP-A-6-87102

  The thickness of the aircraft thin plate is as wide as 0.2 to 5 mm, and the rigidity (deflection) varies depending on the plate thickness as well as the weight change, which greatly affects the handling properties. For such materials, in order to inspect the front and back surfaces, prevent wrinkles during reversal, and perform safe work, it is important to use a simple reversing machine and easy work. It is an object of the present invention to obtain a method capable of performing quality assurance with a safe and secure one-person work by reversing work by a plurality of conventional workers.

  In order to solve the above-mentioned problems, the present inventors have used a mechanical clamping jig having a plate width and a plate length of 1 m or more and a large plate material with a weight of 5 to 200 kg attached to a reversing machine. We have found a reversing machine for metal and hard surface large plate materials, which can be easily performed with a rotating device with a hand-rotating mechanism and does not require a motor.

  Further, in the inspection method using a reversing machine, the metal and the hard surface large plate material, after work such as surface inspection, oiling, supply to the reversing machine with a vacuum lift, after fixing with a tightening jig, After the fixed large plate was reversed, the inspection system was found to be detached from the jig and detached from the reversing machine with the lifting platform, and used for operations such as surface inspection and oiling on the back surface.

  3. The metal and hard surface of claim 2, wherein a waiting space is provided on the entry side and the exit side of the reversing machine in order to perform the surface inspection and the back surface inspection, and the movement is performed by a lifting platform such as a vacuum lift. A board material inspection system was found.

  The present invention enables reversing work (surface inspection, oiling work, etc.) conventionally performed by two persons to be carried out by one simpler reversing machine (saving labor). Prevents surface flaws caused by reversing work and enables reversing work with excellent quality and productivity. In addition, this reversing machine can be laterally developed for various uses.

Shows a photograph of an example of the present invention. The front view is shown about the reversing machine of this invention. The top view is shown about the reversing machine of this invention. The reversing part is made of a welded structure of an aluminum extrusion mold. The side view is shown about the reversing machine of this invention. The photograph of a clamp part is shown about the reversing machine of this invention. Fig. 5 shows a handle portion for rotating a large plate in the reversing machine of the present invention.

  A single-side inspected and oiled aluminum plate (length: 3.5 m, plate width: 1 m, thickness: 5 mm) such as an aircraft member 7000 series material is placed on the table of the reversing machine shown in FIG. Secure with the clamp shown in. As shown in the figure, a rubber cover is wound around the clamp so that the metal part does not contact the aluminum directly. After confirming that it is fixed at eight places, the aluminum plate and the reversing machine base shown in FIGS. 2, 3 and 4 are rotated 180 degrees by operating the handle shown in FIG. Thereafter, the aluminum plate is brought into contact with the elevator using rubber or the like. After the contact, the aluminum plate is removed from the clamp, the elevator is lowered with the aluminum plate placed, and the reversing machine is moved to the backside inspection and oiling operation of the next process.

  The main body of the reversing machine is reduced in weight by an aluminum extrusion mold material (welding joint), and mechanical clamping jigs are attached to both surfaces of the rotating part. In order to fix a large plate having a thickness of 0.5 to 5 mm without bending, the interval between the fastening jigs is set to 1 m or less. Covering the plate contact parts of the reversing machine main body and the tightening jig with soft and elastic material, including wrinkle prevention at the time of detachment and wearing, avoids wrinkles. The reversing machine is a method of rotating the handle by hand, and a stop position is displayed on the handle portion so that the release can be performed smoothly.

  That is, the present invention is applied to a large plate material having a width of 1 m or more and a weight of 5 to 200 kg. If the size is less than 1 m and within 5 kg, it is possible to somehow ensure the quality by reversing work by two people, and it is not necessary to use mechanical equipment. However, when the size is 1 m or more and the weight exceeds 5 kg, it is difficult to ensure the surface quality of the plate even if two people can perform the reversing work. Further, even if the weight is less than 5 kg, it is difficult to ensure the surface quality (wrinkle prevention) due to the bending of the plate when the size is 1 m or more. When the weight exceeds 200 kg, the mechanical clamping jig is displaced or detached at the time of reversal, and it is also difficult to ensure the surface quality. Accordingly, the present invention enables the work of front and back inspection, oiling, etc. for each sheet in a large plate material having a width of 1 m or more and a weight of 5 to 200 kg, and also stacking work. It is a reversing machine for metal and hard surface plank materials characterized in that it can be easily done. Even when the weight exceeds 200 kg, a maximum weight of 1000 kg can be accommodated by increasing the contact area of the mechanical clamping jig and reducing the interval between the mounting jigs.

  Furthermore, the separation and attachment of the plate material greatly affects the workability, and the workability is significantly reduced when the entire outer periphery is fixed. Therefore, in this invention, it carries out with the mechanical fastening jig | tool arrange | positioned at the reversing machine. Although it is desirable to automatically reverse the plate, the equipment cost is high, so a rotating device with a hand-rotating mechanism is installed on one side of the reversing machine, making it an energy saving reversing machine that does not require a motor.

  The work for this purpose involves surface inspection, oiling, etc. one side at a time, so reversal work is in the middle. In the present invention, in the series of operations, the reversing machine is placed at an intermediate position between the entry side and the exit side, the large plate is fixed and reversed, and is carried to the exit-side mobile lifting device.

  The large plate is moved to a fixed position on the exit side by a movable lifting device, and operations such as surface inspection and oiling on the back surface are performed again. The present invention relates to an aircraft thin plate, but can be applied to other applications, and is a metal and hard surface large plate material reversing machine and its working method.

  The reversing machine of the present invention may be made of any material as long as it is a thin large plate. In particular, it is used for inspection of products where surface quality such as duralumin for aircraft affects the quality and safety of the final product, inspection of large glass that dislikes flaws on both sides, such as building materials, and large displays It can be used for double-sided inspection of various materials such as double-sided inspection of transparent materials.

1. Fixing jig (clamp)
2. Inversion table3. Inversion device (handle)
4). Fixed base 5. Rubber for cushioning

Claims (3)

  With a plate width and length of 1 m or more, a large plate material with a weight of 5 to 200 kg is removed and attached with a mechanical clamping jig attached to the reversing machine, and the plate is turned with a rotating device of a hand-turning mechanism. A reversing machine for metal and hard surface large plate materials that is easy to use and features no motors.   The inspection method using the reversing machine according to claim 1, wherein the metal and the hard surface large plate material are supplied to the reversing machine with a vacuum lift after work such as surface inspection and oiling, and fixed with a fastening jig. Then, after the fixed large plate is reversed, the inspection system is detached from the jig and detached from the reversing machine with the lifting platform, and is used for operations such as surface inspection and oiling on the back surface.   3. The metal and hard surface of claim 2, wherein a waiting space is provided on the entry side and the exit side of the reversing machine in order to perform the surface inspection and the back surface inspection, and the movement is performed by a lifting platform such as a vacuum lift. Board material inspection system.