JP2506463Y2 - Swivel table protector - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turning table protection device, and more particularly, it can be used for a machine tool having a turning table provided on a table base so as to be turnable via a sliding surface.

[0002]

BACKGROUND ART Some machine tools such as a horizontal boring machine and a machining center have a turning table. As a device for protecting instruments such as sensors provided on the sliding surface of such a turntable and in the vicinity thereof, those shown in FIGS. 4 and 5 are generally used. That is, according to FIG. 4, the support member 14 is provided on the table base 11 side,
A protective cover 15 made of a rubber material supported by the support member 14.
Is a groove formed on the lower surface of the support member 14 and the table 12.
It is provided over 16 to protect the sliding surfaces 13 of the table 12 and the table base 11 and the measuring instruments 5 such as sensors.

Further, according to FIG. 5, the table base 11
A projection 17 is formed on the bottom of the table 12, and the projection 17 is inserted into a recess 18 formed on the lower surface of the table 12. And this protrusion
A protective cover 20 made of a rubber material attached to the support member 19 is provided in the gap between the recess 17 and the recess 18. The support member 19 is attached to the table 12 with bolts 21. With such a protective cover 20, the table 12
The sliding surface 13 of the table base 11 and the measuring instruments 5 such as sensors are protected.

[0004]

[Problems to be Solved by the Invention] However, since the conventional protective covers 15 and 20 are made of a rubber material,
There is a gap between the protective covers 15 and 20 and the table 12 due to deterioration of the rubber due to long-term use, corrosion of the rubber due to chemical change with the cutting agent, wear of the rubber due to rotation of the table 12, etc. There will be gaps between the seams of 15,20. Then, foreign matter, especially from the gap,
There is a problem that fine chips and the like when air is blown in and further intrudes into the instruments such as the sensor 5 and the sliding surface 13, resulting in poor dust resistance. As a result, troubles are likely to occur because the instruments 5 such as sensors do not work normally, and the sensors 5 may need to be replaced. In addition, if the pressing force of the protective cover is increased to improve the dustproof property, the frictional resistance increases, which imposes a burden on the drive motor, which deteriorates the stopping accuracy and causes the motor to easily fail.

Here, an object of the present invention is a dustproof effect for protecting a sliding surface of a turning table and instruments such as sensors attached in the vicinity thereof in a machine tool having a turning table from intrusion of foreign matter such as fine chips. To provide a high turntable protection device.

[0006]

A solution for the present invention, in a machine tool is turntable on Te Burubesu provided pivotably via a sliding surface, met protector of swivel table that protects the sliding surface On the table base
An attachment part is formed in an annular shape on the outside of the slip surface,
Position on the lower surface of the turning table and corresponding to the mounting part
An entire circumferential groove is formed in a ring on the mounting portion and the entire circumferential groove.
Between the lower end is fixed to the mounting portion and the upper end.
Is a cover member of a strip-shaped metal plate inserted in the entire circumferential groove
It is installed and outside of this cover member
The upper surface of the table base has an inclined surface.
And are characterized.

[0007]

SUMMARY OF] In such present invention, the cover member has its upper end portion is inserted into the entire circumference in a groove formed on the lower surface of the turntable, and the outer lower end than table-based sliding surface
It is fixed to the mounting part formed on the side, and because it is made of metal, it has little wear and does not corrode due to chemical change with cutting oil, so it maintains high dust resistance for a long time.
be able to. As a result, it is possible to obtain a turning table protection device having a high dustproof effect . Also, from the cover member
Also, the upper surface of the outer table base is formed as an inclined surface.
Therefore, the chips and coolant generated by cutting
Runs down the slope without accumulating on the bull base
Therefore, ensure that these enter the inside of the cover member.
Can be prevented. Therefore, from this point as well, high dust resistance
Can be maintained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are a plan view and a general view of the vicinity of a table of a machine tool to which a turning table protection device 30 of the present invention is applied. To explain the overall outline in these figures, a table 12 is provided on a table base 11 of a machine tool, and the table 12 is rotatable along a sliding surface 13 by a worm mechanism or a spur gear mechanism (not shown). ing. Work W is this table 12
It is attached to and is subjected to predetermined processing.

As shown in detail in FIG. 3, the lower surface of the table 12 is provided with a rear circumferential groove 12A having a predetermined width and depth.
It is formed in an annular shape corresponding to the mounting portion 11E described below .

Further, the base table 11, the upper surface of its is formed on the inclined surface 11B, further the inclined surface 11B
A mounting portion 11E is formed in an annular shape outside the sliding surface 13 . This mounting portion 11E includes a groove portion 11A and a mounting surface 11
The groove 11A is formed only on the half side of the inclined surface 11B, that is, on the left side of the center 3 in FIG. That is,
The groove 11A is formed by the center 3 of the table base 11 and the inclined surface.
From the intersection with 11B, the inclined surface 11B is formed horizontally across the inclined surface 11B, and is therefore lower than this horizontal plane.
That is, the groove portion 11A is not formed on the upper surface on the right side of the table base 11 in FIG. However, horizontal protruding surface
11D is formed, and a mounting surface 11C for mounting the cover member 1 is further formed from the horizontal protruding surface 11D.
The mounting surface 11C is a ring that is continuous with the inner peripheral surface of the groove 11A.
Is formed on the peripheral surface, and thus the mounting portion 11E is configured.
ing.

The cover member 1 is provided between the table base 11 and the table 12 as described above. That is,
The cover member 1 is made of a strip-shaped metal plate, particularly a thin strip steel plate made of stainless steel in the embodiment. The upper end of the cover member 1 is inserted into the entire circumferential groove 12A of the table 12. The lower half of the cover member 1 is inserted into the groove portion 11A of the table base 11, and the other half is attached to the attachment surface 11C. At this time, the cover member 1 is attached to the attachment surface 11C with the bolt 2. Therefore, rather than the cover member 1.
The upper surface of the outer table base 11 is formed into an inclined surface.
ing. Here, these cover member 1 and the entire circumferential groove 12
A, a mounting portion 11E, etc. constitute a protective cover 30 for the turning table.

The space between the table base 11 and the table 12, which are constructed by mounting the cover member 1, is an instrument housing section 4, and the instrument housing section 4 has a sensor for measuring the rotation angle of the table 12 and the like. Instruments 5 are provided.

Next, the operation of this embodiment will be described. Table base to which instruments such as sensors 5 are attached
When the table 12 is rotatably provided on the table 11, first, the cover member 1 is provided, and the upper end portion of the table 12 is the entire circumferential groove 12A on the table 12 side.
Then, the lower end portion is inserted into the mounting portion 11E on the table base 11 side. At this time, the cover member 1 is the member 1
1 is inserted into the groove portion 11A and the entire circumferential groove 12A to be wound around the left side portion of FIG. 1, that is, the groove portion 11A on the side of the table base 11, so the other half is wound around the mounting surface 11C and fixed by the bolt 2.

As described above, since the cover member 1 completely seals the vicinity of the sliding surface 13 between the table 12 and the table base 11, the measuring instruments 5 such as the sensors mounted on the sliding surface 13 and in the vicinity thereof are finely sealed. Protected from foreign matter such as chips.

According to this embodiment as described above, the following effects can be obtained. That is, the cover member 1 of the protection device 30
Since it is made of stainless steel, it does not deteriorate even after long-term use. Further, the cover member 1 is not affected by the cutting agent, the wear of the cover member 1 due to the rotation of the table 12 is small, and therefore the dustproof effect is extremely enhanced and the turning table protection device 30 has a long life. as a result,
Since foreign matter such as fine chips is less likely to enter the sliding surface 13 between the sensor 5 and the table 12 and the table 12 and the table base 11, there is no trouble caused by the foreign matter entering the sensor 5 and the slip. There is no motor failure due to foreign matter entering surface 13. Further, the sliding resistance of the cover member 1 can be reduced because the surface-treated metals are in contact with each other.

Further, the cover member 1 is made of a thin plate made of stainless steel, and such a cover member 1 is provided with a mounting portion 11E consisting of an entire circumferential groove 12A, a groove portion 11A and a mounting surface 11C.
I just need to fix it with the bolt 2, which is easy to manufacture and easy to put on and take off.

Further, since the upper surface of the table base 11 of this embodiment is the inclined surface 11B, chips and coolant generated by cutting are easily discharged.

The turning table protection device of the present embodiment
As a result of testing dust resistance with a machine tool equipped with 30, even after 2 years or more, troubles such as troubles and motors due to foreign matter such as fine chips entering the slip surface 13 and sensors 5, etc. There is no case, and it has been proved that it is a turning table protection device 30 having an extremely high dustproof effect.

The present invention is not limited to the above-mentioned embodiment, but includes the following modifications and the like. That is, although the cover member 1 of the protection device 30 is one in the above embodiment, the present invention is not limited to this, and may be a plurality of divided members such as two divided members. In this case, The mounting surface 11C on the table base 11 side may be appropriately bolted together with the divided portion. in short,
It suffices if the sliding surface 13 and the instrument housing 4 are sealed.

Further, although the cover member 1 is made of thin stainless steel in the above-mentioned embodiment, the present invention is not limited to this, and may be a strip-shaped metal plate such as a brass plate having abrasion resistance and corrosion resistance.

Further, in the above embodiment, the table base 11
Although the groove portion 11A is formed horizontally, it may not necessarily be horizontal and may be an inclined groove along the inclined surface 11B or with another inclination. According to this, the cutting chips and the coolant etc. that have entered into the groove portion 11A can be easily discharged.

[0022]

In addition, the specific structure and shape for carrying out the present invention may be other structures and the like as long as the object of the present invention can be achieved.

[0024]

As described above, according to the turning table protection device of the present invention, in a machine tool having a turning table, measuring instruments such as sensors mounted on the sliding surface of the turning table and in the vicinity thereof are provided. It is possible to protect from intrusion of foreign matter such as fine chips.

[Brief description of drawings]

FIG. 1 is an overall view of the vicinity of a turning table equipped with a turning table protection device according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a detailed view of a main part near a turning table.

FIG. 4 is an example view showing a conventional turning table protection device.

FIG. 5 is an example view showing another form of a conventional turning table protection device.

[Explanation of symbols]

 1 Cover member 2 Bolts 5 Sensors and other instruments 11 Table base 11A Groove portion 11B Sloping surface 11C Mounting surface 11E Mounting portion 12 Table 12A Full circumference groove 13 Sliding surface 30 Swivel table protection device

Claims (1)

(57) [Scope of utility model registration request] 1. A machine tool is turntable on Te Burubesu provided pivotably via a sliding surface,
Met protector of swivel table that protects the sliding surface
Te, mounted on the outer side than the sliding surface on the table base
The ring portion is formed in an annular shape , and is located on the lower surface of the turntable and at a position corresponding to the mounting portion.
A circular groove is formed on the mounting surface , and the lower end is between the mounting portion and the peripheral groove.
Band fixed to the groove and having the upper end inserted into the groove.
A cover member of a metal plate is interposed, and the upper surface of the table base outside the cover member
Is a turning table protection device, which is formed on an inclined surface .