JPS60217046A - Profiling device for automatic edge-preparing device - Google Patents

Abstract

PURPOSE:To enable to perform reliable profiling machining operation, by a method wherein a griding cutter is cynchronizingly elevated through a profiling roller depending on the flatness of a material to be machined. CONSTITUTION:A spindle 7, provided at its lower end with a grinding cutter 6 for machining a beveling part for edge preparation, is elevatably attached to a machining device body 3, and is provided at the upper end of the spindle 7 with a holding tool 8, which rotatably holds the level position of the spindle 7. Meanwhile, a profiling shaft 12, provided at its lower part with a profiling roller 9, is located in parallel to the spindle 7, and energization is effected so that the profiling shaft 12 is pressed against the upper surface of a material 2 to be machined by means of an air cylinder 13, located in the middle of the profiling shaft, with the aid of the machining device body 3. This enables to perform edge-preparing operation depending upon flatness of the material 2 to be machined, and pressing of the material 2 to be machined enables prevention of production of vibration during machining.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying device for an automatic beveling machine used mainly for welding beveling of workpiece materials such as aluminum plates.

Spherical LNG tanks for LNG tankers, which have been widely used in recent years, are formed by welding spherical shells made of aluminum plates, and when welding grooves are processed using such aluminum plates as work materials, Conventional beveling machines on the market are not equipped with a copying device that can follow the bending, or flatness, of the plate material.

On the other hand, the spindle of a conventional beveling machine rotates while holding the cutting tool at its lower end and feeds the bevel to cut the bevel, but the cutter's lifting device is manually fed. Although it is inexpensive, it requires human intervention and is not automatic.

On the other hand, in those equipped with an electric servo type copying device, a copying roller equipped with a sensor measures the flatness of the workpiece material, and feeds back to the spindle's lifting/lowering drive device to perform the cutting process. In addition to being expensive, since it is electronically controlled, countermeasures against noise caused by aluminum dust etc. are troublesome, and there are problems in that it is affected by the quality of the scanning response.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned conventional problems and provide a copying device for an automatic beveling machine that is simple in structure, has reliable copying performance, and is relatively inexpensive. be.

That is, the copying device of the automatic beveling machine of the present invention has a cutting blade attached to the lower end, and a height of the spindle that is provided on the upper part of the spindle that can be raised and lowered with respect to the main body of the processing machine. At the same time, a holder is installed to hold the workpiece position, and a copying shaft that is pressed against the top surface of the workpiece from the processing machine body and comes into contact with the top surface of the workpiece via the copying roller is attached. It is characterized by being connected to a holder.

The present invention will be described in detail below with reference to the drawings, in which FIG. 1 is a schematic side view, partially in section, of the copying device of the automatic beveling machine of the present invention, and FIG. FIG.

First, the beveling machine shown in FIG.
This processing machine main body 3 moves along the groove of the workpiece material 2 via rollers 5 on a traveling rail 4 supported on a pedestal 1. It is arranged like this.

Next, a spindle 7, which has a cutting tool 6 attached to its lower end for beveling the groove, is provided so as to be able to move up and down with respect to the main body 3 of the processing machine, and is rotated by a power (not shown). Furthermore, a holder 8 is provided at the upper end of the spindle 7 to rotatably hold the spindle 7 at its height.

On the other hand, parallel to this spindle 7, there is a roller 9 at the bottom.
A copying shaft 12 is provided on which the copying shaft 12 is attached, and the upper end of the copying shaft 12 is connected to the holder 8 with a screw, and its height position can be adjusted using a spindle vertical adjustment handle 10. Furthermore, the position can be fixed by a lock handle 11.

In addition, an air cylinder 13 is located in the middle of this copying shaft 12.
is provided, and this air cylinder 16 allows the copying shaft 12 to be moved from the processing machine main body 3 to the upper surface of the workpiece material 2.
While being urged so as to be pressed, it is constantly in contact with the upper surface of the workpiece material 2 via the copying roller 9. At this point, the position of the copying shaft 12 can be fixed by a locking rod 14. is provided.

As shown in FIG. 2, this air cylinder 13 can be operated both upward in the direction of the arrow and downward in the direction of the arrow via the manual pulp 15.
It is operated and regulated through the

In an automatic beveling machine having a copying device configured as described above, if the copying shaft 12 is raised and lowered via the copying roller 9 according to the flatness of the workpiece material 2, the spindle 7 and the cutting blade 6
The workpieces are raised and lowered synchronously via the holder 8, making it possible to perform beveling that follows the flatness of the workpiece material 2, and the workpiece material 2 is always transported from the processing machine main body 3 to the air cylinder 16. Since it is pressed by the action of , it has the effect of preventing vibration during machining.

In addition, in the above embodiment, the workpiece material 2 is transferred from the processing machine main body 6.
While being urged to press by the air cylinder 16, the copying shaft 12 moves the workpiece material 2 through the copying roller 9.
Although it is designed to contact the upper surface, this pressing force may be applied by means other than an air cylinder, such as a hydraulic cylinder, a spring material, or other means. For example, a coil spring may be used instead of the air cylinder 13 in FIG. It has been confirmed using an actual machine that almost the same effect as in the above embodiment can be obtained even if

Therefore, an automatic beveling machine to which the copying device of the present invention is applied is less expensive than one having a conventional electric servo type copying device, and especially when aluminum plate material is used as the workpiece material, Since the cutting force is smaller than that of steel materials, the pressing force only needs to be small, and the pressure can be easily finely adjusted using a pressure reducing valve or the like.

In addition, if the air cylinder is used as a means of pressing force, chips,
It has the advantage of being relatively unaffected by dust, etc., and capable of exhibiting reliable copying performance without being affected by the quality of copying response unlike electric servos.

Furthermore, since the copying device of the present invention presses the material to be processed, it is also effective in preventing vibrations during processing operations.

[Brief explanation of drawings]

FIG. 1 is a schematic side view, partially in section, of a copying device of an automatic beveling machine of the present invention, and FIG. 2 is an air circuit diagram of FIG. 1. 2... Workpiece interest, 6... Processing machine body, 6... Cutting blade, 7... Spindle, 8... Holder, 9...
・Usakai Roller, 13...Air cylinder. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita

Claims (1)

[Claims] A cutting blade is attached to the lower end of the spindle, and a holder is attached to the upper part of the spindle, which is movable up and down with respect to the processing machine body, and which holds the height position of the spindle in a rotatable manner. Automatic bevel processing characterized in that a tracing shaft is connected to the holder and is urged to press against the upper surface of the workpiece through a roller that contacts the upper surface of the workpiece. Machine copying device.