JPH0215945A - Machine tool - Google Patents

Abstract

PURPOSE:To eliminate a work for removing a cutting debris like a chip and ensure efficient cutting work by applying the constitution wherein a table is put into a half-turn motion after setting a workpiece for opposing a position above a cutting blade and then the cutting work is carried out. CONSTITUTION:After set on a table a2, a pushbutton and the like are operated to turn half a frame body 4, a workpiece B displaced together with the table a2, is so positioned as to oppose a position above a drill 1 fitted to the main spindle 9 of a spindle head a1. Then, an electric motor 10 for the spindle head a1 is operated for transferring a rotary power to the drill 1, and this drill 1 is lifted via the operation of a handle 11, thereby carrying out boring work. According to the aforesaid processes, it is possible to kept the hole (b) of the workpiece B free from a cutting debris 12 like a chip and ensure efficient boring work.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a machine tool for performing various cutting operations such as hole numbering, reaming, and screw tapping. (Prior art) This kind of cutting work using a machine tool, for example, drilling, involves placing a workpiece on a table with a cutting tool ( This is generally done by transmitting rotational power to a so-called drill.

However, as a practical problem, the cutting material of the cutter, which should be removed from the hole of the workpiece during work, is not completely removed from the hole and accumulates in the hole, slowing down the rotational force of the cutting blade. The current situation is that this is a major cause of such problems. Therefore, when cuttings such as chips accumulate in the hole of the workpiece, the operator must interrupt the drilling process midway through and remove the cuttings manually using a tool11. First, the removal work was time-consuming, and the drill was not able to perform the work efficiently.

<Problems to be Solved by the Invention> The problems to be solved by the present invention are to provide a machine that enables efficient cutting work by eliminating the need for the operator to remove cut objects such as chips by himself/herself. The machine is on offer.

Means for Solving the Problems> The technical means taken by the present invention to solve the above problems is to set the workpiece on a table, then move the table half a rotation to position it above the cutting tool. In addition, the cutting tool and the workpiece are faced to each other to perform the cutting operation.

<Example> An example of the present invention will be described based on the drawings.
> indicates a machine tool, and the machine tool (A) is equipped with a spindle head (al) that transmits rotational power to a cutting tool, such as a drill (1), on the top of a machine frame (commonly called a column) (2), It is a so-called upright drilling machine that is equipped with a table (al) for setting the workpiece (B) below the spindle head (, a+),
The working part (3) including the spindle head (a+) and the table (al) is mounted and supported on the machine frame (A+) so as to be semi-rotatable or rotatable.

The first working part (3) is integrally provided with a spindle head (al) in the upper part of the frame (4), and can be fixed or raised/lowered to the lower part of the frame (4) facing the spindle head (al). on the table (al
), and the machine frame (
2) Mount and support.

The rotation support mechanism (5) includes a rotation support shaft (6) having one end fixed to the frame (4) and the other end rotatably pivoted to the machine frame (2), and this support shaft ( 6) The other end of the machine is connected to the machine frame (2) through a plurality of gears (7) and is fixed to the machine frame (2).

The electric motor (8) is actuated by operating a push button or the like to displace the vertical positional relationship between the table (al) on which the workpiece (B) is set and the spindle head (a+). 4) is electrically controlled so as to rotate the frame body (4) halfway and to stop and hold the frame body (4) in the half-rotated state (FIG. 2).

Therefore, in the example of refusing, the workpiece (B) is placed on the table (al).
The table is placed above the drill (1) attached to the spindle (9) of the spindle head (al) by turning the frame (4) in half by operating the push button, etc. (al)
The workpiece (B), which has been displaced together with the workpiece (B), is positioned facing each other.

After that, the electric motor (10) of the spindle head (al) is operated to transmit rotational power to the drill (1), and the drill (1) is raised by operating the handle (11) to perform drilling work. The hole (b) of the workpiece (8) is designed to prevent cuttings (12) such as chips from accumulating in the hole (b) so that efficient drilling can be carried out (Figure 2). .

Note that machine tools <A) are not limited to the upright drilling machine described in the above embodiments, but include machine tools used for various cutting operations such as drilling, reaming, and tapping. For example, numbers! , 1Jtll machine tools, etc., which automatically control some operating operations using numerical information, it goes without saying that the present invention is applicable to them as well.

<Effects of the Invention> As described above, in the machine tool of the present invention, after setting a workpiece on the table, the table is moved by half a rotation to position it above the cutting tool, and the cutting tool and the workpiece are faced to each other. Since the cutting work is carried out by cutting the workpiece, cutting objects such as chips will not accumulate in the hole of the workpiece. Therefore, there is no need for the operator to remove cutting objects such as chips accumulated in the hole of the workpiece, which is a time-consuming process, as in the past, which improves cutting workability and improves efficiency.
The operator's fatigue can be reduced by eliminating the need for manual work to remove cut objects such as chips.

Therefore, the intended purpose can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of the machine tool of the present invention, and FIG. 1 is a partially cutaway front view, FIG. 2 is a front view showing the state of cutting work, and FIG. 3 is a partially enlarged view. FIG. In addition, in the figure (A>2I machine tool <82): Table (1) Nitrile (cutting tool) (B): Processed product patent applicant Masa Hayakawa, agent of Fuso Light Alloy Co., Ltd.

Claims (1)

[Claims] A machine tool characterized in that, after a workpiece is set on a table, the table is moved half a rotation to be positioned above a cutting blade, and the cutting blade and workpiece face each other to perform cutting work. .