JPH018250Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an apparatus for peeling off cladding material from clad steel, and more specifically to an apparatus for efficiently and automatically forming grooves in a flat plate.

Starting with petrochemical equipment, which has made remarkable progress in recent years, the trend toward larger equipment has become particularly noticeable, such as in water production equipment for the Middle East.

A common feature of these large devices is that material costs account for a large proportion of the total manufacturing cost, and each manufacturer is reducing costs in terms of both labor and material costs by using clad steel as a corrosion-resistant material. There is a growing tendency to measure

This is especially true in terms of shorter construction times, fewer welding defects, and lower construction costs due to the increased reliability of the quality of clad steel and the fact that the number of welds is significantly reduced compared to conventional lining methods. This is because, in addition to the recognition of its advantages, the production technology has been established based on a wealth of experience and achievements.

Clad steel is made by applying a bevel to the end face of the material for welding, and by joining multiple flat plates by welding, it can be made into any size (for example, 16 m wide x
60m) flat plate is being manufactured. When welding other flat plates (partition plates, reinforcing materials, etc.) to any part of the flat plate depending on the location and purpose of use, the flat plate manufactured in this way can be attached thinly to the surface of the clad material. After peeling off the corrosion-resistant material and welding the base metals together, the surface is covered with the corrosion-resistant material by overlay welding or lining.

By the way, the above-mentioned cladding material removal work has conventionally been carried out using gouges and a grinder, but stainless steel cladding in particular has a strong adhesive force and is not easy to remove even if it is removed by gouging. In addition, there were various problems such as the process cutting into the base material, gouging and grinding being done manually, making it difficult to work continuously for a long time, and poor processing accuracy.

This idea was devised by focusing on the conventional problems, and its purpose is to efficiently peel off the cladding material without damaging the base material and form it in any desired shape at any desired location. An object of the present invention is to provide a clad steel stripping device capable of machining straight or curved grooves.

In order to achieve the above object, this invention includes a pedestal on which a flat plate composed of a base material and a cladding material is placed, and a groove machining standard that is placed on the flat plate on the pedestal and marked on the top surface of the flat plate. a base plate having a guide rail arranged along a line; a floating movement means for floating the base plate relative to the flat plate; a drive roller engaging the guide rail; and a copying roller rolling on the flat plate. The present invention is characterized by comprising a processing machine equipped with a rotary processing tool that is interlocked with the copying roller.

Embodiments of this invention will be described below based on the accompanying drawings.

A flat plate 1 with a grooved end face and a base material G and a cladding material K joined to an arbitrary size by welding is placed on a pedestal 2 placed on the floor at appropriate intervals. A base plate 4 is placed on this flat plate 1 via a rubber sheet 3. A guide rail 6 is laid on the base plate 4 via a support member 5 along a groove machining reference line Machine 7 is installed.

The processing machine 7 is held via a stopper pin 8, and can be easily removed by pulling out the stopper pin 8.

Further, a cutter 11 (processing tool) is attached to the processing machine 7, which is connected via a drive shaft 10 connected to a drive motor 9 and an interlocking mechanism (not shown), and the drive shaft 10 is interlocked in parallel with the cutter 11. A copying roller 12 is provided vertically.

Further, the processing machine 7 is provided with a pair of drive rollers 20, 20 that are interlocked with the drive motor 9 so as to sandwich the guide rail 6 from both sides. ,20
is urged in a direction to strongly pinch the guide rail 6.

The cutter 11 attached to the processing machine 7 has a shape that can be machined into an arbitrarily determined groove shape by the rotation of the drive shaft 10, and is of a chip type that is convenient for replacing the cutter 11 when it wears out. However, when the amount of processing is small, an integrated milling cutter is used.

Furthermore, the drive shaft 10 to which the cutter 11 is attached is linked to the copying roller 12 so that grooves of a constant depth can be machined in response to the distortion of the flat plate 1, and the load on the processing machine 7 can be varied. I did it,
It is also extremely effective in preventing vibration and maintaining a uniform finish.

Further, on the lower surface of the base plate 4, air bearings 13, which are referred to as floating means, are arranged at appropriate intervals according to the weight and balance of the device.
is installed, and this air bearing 13
By blowing factory air supplied by the air hose 14 onto the flat plate 1, the entire apparatus is slightly floated away from the flat plate 1.

Furthermore, due to the bearing effect of the air ejected from the gap with the flat plate 1 caused by levitation, the entire device can be easily moved by a slight external force, thereby preventing the effects of external forces such as distortion of the device. be able to.

Note that 15 is a hanging fitting attached to the base plate 4 via a reinforcing member 16, and 17 is an eye bolt that is attached and used when transporting this device to a location other than on the flat plate 1.

Next, the effect will be explained.

Peel off the cladding material K glued to the base material G and cut a straight or curved groove S in an arbitrary shape at an arbitrary location.
(In this embodiment, the width W and both end face angles θ) are to be processed, first the base plate 4 is installed at a desired position on the flat plate 1. During this installation, the air in the air bearing 13 is released, so that the base plate 4 is installed on the flat plate 1 via the rubber sheet 3 due to its own weight. At this time, it goes without saying that the guide rail 6 on the base plate 4 should be set parallel to the groove machining reference line XX.

Next, the processing machine 7 is mounted on the guide rail 6,
Drive the drive motor 9 installed in the processing machine 7,
The drive roller 20 and the blade 11 are rotated.

Then, operate the lever 21 to
0 from both sides of the guide rail 6, the processing machine 7 travels on the guide rail 6 and performs groove machining along the groove machining reference line X marked on the flat plate 1. At this time, the cutter 11 is linked with the copying roller 12 so as to follow the curve (flatness) of the flat plate 1 and maintain it at a constant depth, thereby preventing load fluctuations on the processing machine 7 and achieving a uniform finished surface and finished depth. to be maintained.

In the above-described machining, since the cutting tool 11 performs rotational cutting around an axis, almost no reaction force in the vertical direction is generated. Therefore, for example, there is no risk that a processing machine weighing about 200 kg will be lifted off the guide rail 6 due to cutting reaction force.

When the processing machine is to be moved together with the base plate, factory air is injected into the air bearing 13, the processing machine is slightly floated together with the base plate, and with the help of a small number of people it slides on the flat plate 1 and easily moves to the next predetermined position. You can move up to

As mentioned above, this idea involves placing a flat plate made of base material and cladding material on a stand, and laying a guide rail on this flat plate along the groove machining reference line marked on the top surface of the flat plate. A floating base plate is mounted on the base plate, and a floating movement means for floating the flat plate is connected to the base plate, and a processing machine including a copying roller and a processing tool interlocked with the copying roller is movable on the guide rail. Because it was placed,
It has the following excellent effects.

In addition, this device can also be applied to flat processing of welded excess metal as shown in FIG.

(1) Since the base material is not damaged due to uniform depth (generally, the maximum cutting allowance on the base metal side is 0.5 mm), the calculated plate thickness at the time of design can be secured.

(2) Because of its good straightness, it can be used as a measurement standard for correcting distortion of mating partition plates, reinforcing materials, etc., and is effective in assembling.

(3) Since it becomes possible to perform continuous work and at the same time allows one person to take charge of multiple machines and tasks, it has the effect of not only increasing the work efficiency of machines but also significantly reducing labor costs.

(4) Compared to arc air gowns, there is less dirt on the material, making subsequent cleaning operations extremely easy.

(5) It is economical as it consumes less energy.

(6) Furthermore, since the structure is simple, it can be manufactured at low cost and maintenance is easy.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view showing how the device is used, Fig. 2 is a cross-sectional view of the cladding material after it has been peeled off from a flat plate, and Fig. 3 is a side view of the cladding material peeling device implementing this invention. FIG. 4 shows another embodiment. 1... Flat plate, 2... Frame, 4... Base plate, 6
...Guide rail, 7. Processing machine, 11. Processing tool (cutting tool), 12. Copying roller, 13.. Lifting movement means, G.. Base material, K.. Clad material, X.. Groove machining reference line.

Claims (1)

[Scope of utility model registration request] A pedestal on which a flat plate composed of a base material and a cladding material is placed, and a guide rail placed on the flat plate on the pedestal and arranged along a groove machining reference line marked on the top surface of the flat plate. a base plate having a base plate, a floating movement means for floating the base plate with respect to the flat plate, a drive roller that engages with the guide rail, a copying roller that rolls on the flat plate, and a rotary processing tool that is interlocked with the copying roller. A cladding material peeling device for cladding steel, which consists of a processing machine equipped with .