JP2500237B2 - Disappearance model processing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus for producing a vanishing model such as a press die, and more particularly to an apparatus for improving the working environment and saving space.

[0002]

2. Description of the Related Art Conventionally, when manufacturing a die such as a press die, a vanishing model having the same shape as the die shape is made of a vanishing foam block, and the vanishing model is solidified with sand such as resin sand. After that, there is a method in which a molten metal is poured into the model portion so that the model disappears and a mold having the same shape is cast. In order to manufacture such a vanishing model, it is necessary to cut and form the foam block, and a vertical open type processing device is known as a cutting machine for such cutting. In this type of cutting machine, the upper surface of the work is shaped by feeding the cutter head, which is usually arranged above the work, based on NC data.
On the other hand, in open type cutting machines, there are problems such as the deterioration of the work environment and the deterioration of environmental hygiene due to the accumulation of chips and the like generated by machining around the work or scattering around the work. Therefore, for example, Japanese Patent Laid-Open No. 2-10
There is also known an apparatus, such as No. 9663, which encloses a processed portion with a box to prevent scattering of chips and the like.

[0003]

However, in the case of the conventional vertical type cutting machine, since the cutter head needs to be exposed above the work, a rigid pedestal is required and the size of the apparatus tends to increase. Moreover, since the chips are machined from above, chips are accumulated around the processed part on the upper surface of the work, and the chips cannot be completely removed.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a cutter head having at least three axial degrees of freedom in a recessed space formed by hollowing out a floor surface and discharging chips in the recessed space. A payout means was provided. Further, a work mounting table is provided in the recessed space so as to be reversible, and a work block for fixing the foam block to the work mounting table.
A fixing means is provided. Then, the work space or the foam block can seal the concave space.

[0005]

After the foam block is fixed on the work mounting table, the work mounting table is reversed and the lower cutter head is used for processing from below. At this time, since the cutter head can be directly installed on the floor surface, it is possible to reduce the size of the apparatus without requiring a rigid stand having high rigidity as in the conventional case. Moreover, the chips generated during processing do not accumulate around the work and all fall downward. Then, the dropped chips are removed by the chip discharging means. or,
By sealing the recessed space, the scattered chips do not deteriorate the working environment and are effective in terms of environmental hygiene.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a processing apparatus of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall configuration diagram of a processing apparatus of the present invention, FIG. 2 is an enlarged view of a recess space, and FIG. 3 is a perspective view of a work placing table and a cutting unit. As shown in FIG. 1, the processing apparatus of the present invention has a recess space 2 formed by hollowing out a floor surface 1, a cutting unit 3 provided in the recess space 2, and chips accumulated below the recess space 2. It is provided with a chip discharging means 4 for discharging the scraps and a work mounting table 5 provided on the recessed space 2. The work mounting table 5 is provided with work fixing means as will be described later and is arranged in a direction perpendicular to the paper surface. It is reversible around the rotary shaft 6. The ends of the carry-in conveyor 8 and the carry-out conveyor 9 face the front and rear of the recessed space 2 to form a carry path. Then, the foam block W in the stock place 10 is transferred to the carry-in conveyor 8, and when it is conveyed to the work mounting table 5, it is fixed and reversed by the fixing means, and when the processing is finished, the work mounting table 5 is reversed again. Then, it is delivered to the carry-out conveyor 9. The carry-in conveyor 8 and the carry-out conveyor 9 include belt-type, roller-type, or other type conveyors.

First, the structure of the cutting unit 3 will be described with reference to FIGS. 2 and 3. The cutting unit 3 includes a pair of guide rails 11 provided on the bottom floor surface in the recess space 2.
And the X-axis moving body 12 that engages with this guide rail 11.
And an X-axis motor 13 for driving the X-axis moving body 12 in the X-axis direction of FIG.
The rack constitutes a moving mechanism. Further, a Y-axis moving body 14 is engaged with the front surface of the X-axis moving body 12, and a Y-axis motor for driving the Y-axis moving body 14 in the Y-axis direction.
Is provided. Furthermore, this Y-axis moving body 14 has a Z
A cutter head 17 which can be moved up and down is provided by the shaft motor 16, and the cutter head 17 is X, Y,
It will be movable in three directions orthogonal to the Z axis.
Below the cutter head 17, a drive motor for processing drive is installed.
18 is provided.

Next, the construction of the work table 5 will be described. As described above, the work mounting table 5 is reversible around the rotary shaft 6, and a large number of air suction holes 20 ... Are provided on the upper and lower surfaces for sucking and fixing the foam block W. .
That is, as shown in FIG. 2, two hollow chambers 21 and 22 that are vertically independent are provided inside the work placing table 5, and the foam block W on the upper surface side and the foam block W on the lower surface side are adsorbed separately. As shown in FIG. 3, a pair of vacuum / pressurization switching circuits 23, 23 are connected to the hollow chambers 21, 22 through the left and right rotary shafts 6, respectively. In the case of a lightweight work such as a foam block, it is possible to use a double-sided adhesive tape for the work fixing means as described above. The provided needle may be stuck into the foam block W. Further, when the work mounting table 5 becomes parallel to the floor surface 1, it covers the upper opening of the recess space 2 from above, and the recess space 2
Is to be sealed. That is, in order to prevent chips generated during processing in the recess space 2 from leaking to the external space,
It is effective in terms of beautifying the working environment and hygiene of workers. Incidentally, this sealing may be made by utilizing the foam block W itself, and in this case, the work mounting table 5 can be constituted by a frame body or the like. In addition, the above
The mounting table may be a cantilever hinge type mounting table 24 as shown in FIG. 4, and may be configured to be inverted around the hinge 25.

Next, the chip discharging means will be described. As shown in FIG. 1, the chip discharging means is composed of a chip conveying conveyor 26 provided below and a chip collecting conveyor 27 connected to the conveying conveyor 26, and collects and collects chips generated during processing on the conveying conveyor 26. Collected by the conveyor 27.

In the processing apparatus configured as described above,
As described above, the foam block W conveyed from the carry-in conveyor 8 onto the work placement table 5 is fixed by air suction, then inverted, and processed by the cutting unit 3.
At this time, the chips fall down as they are, have no effect on the work part, and the scattered chips do not escape from the recess space 2 to the outside, but fall on the cutting conveyor 26 and are collected. . Further, during processing, the processed work is discharged and the next foam block W is received and fixed on the upper surface side of the work mounting table 5. When the processing of the lower foam block W is completed, the cutter head 17 is retracted to a position where it does not interfere, and then the work mounting table 5 is inverted. Then, while the lower processing is being performed, the upper processed block is delivered and a new foam block is received, and this is sequentially repeated.

[0011]

As described above, according to the processing apparatus of the present invention, what is conventionally processed from the upper side of the work is processed from the lower side, and moreover, the chips are kept out of the recessed space under the floor. As a result, the working environment does not deteriorate and it is effective in terms of improving the hygiene of employees. Moreover, since the cutter head is close to the floor, the frame for supporting the cutter head can be simply configured, and the device can be downsized. Further work
By making the work mount table reversible, it is possible to set up and set the next work on the upper surface side in parallel with the work of the work, and it is possible to perform the work smoothly.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a processing apparatus of the present invention

FIG. 2 is an enlarged view of the recess space.

FIG. 3 is a perspective view of a work table and a cutting unit.

FIG. 4 is an explanatory view showing another embodiment of the work table.

[Explanation of symbols]

 (1) Floor surface (2) Recessed space (3) Cutting unit (4) Chip discharging means (5) Work placement table (17) Cutter head (20) Air suction hole (24) Work placement table

Claims (1)

(57) [Claims] 1. A processing device for processing a foam block to form a vanishing model, the device comprising a cutter head provided in a recessed space formed by hollowing out a floor surface and having at least three axial degrees of freedom, and this recessed space. A chip discharging means for discharging the internal chips, a work mounting table that is reversible in the recessed space, and a work for fixing the foam block on the work mounting table.
An apparatus for processing a disappearing model, comprising a work fixing means, wherein the recess space can be sealed by the work mounting table or a foam block on the work mounting table.