JP2579430Y2 - Work removal equipment for surface grinder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work attaching / detaching apparatus for a surface grinder provided with a table having an electromagnetic chuck for attaching / detaching a work.

[0002]

2. Description of the Related Art Generally, when an attempt is made to remove a work after completion of a grinding operation with a surface grinder of this kind, cutting oil that has entered between the table and the work even when the electromagnetic chuck for attaching and detaching the work of the table is demagnetized. work has become difficult to remove Te <br/> have paste to the table for, and forcibly removed, there is a problem such as that may scratch occurs in the contact surface between the workpiece and the table.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for attaching and detaching a work of a surface grinding machine, which eliminates the inconvenience of the conventional work and prevents damage occurring at the contact surface between the work and the table. It is intended for.

[0004]

That is, the work attaching / detaching apparatus of the surface grinding machine according to the present invention includes a table having an electromagnetic chuck for attaching / detaching the work, and the table has an air discharge port for removing the work. The table is fed from an air supply source side to a pipe communicating with the air discharge port.
First solenoid valve that shuts off air supply in conjunction with operation ,
A second electromagnetic valve, a manual opening / closing cock, and a cock that can be minutely adjusted are sequentially arranged in accordance with the feeding operation of the table .

[0005]

Therefore, the work attachment / detachment device for the surface grinder according to the present invention has a plurality of air discharge ports for removing the work on the table, so that the work for cutting oil entering between the table and the work is provided. Can be prevented from becoming difficult to remove from the table, and the first solenoid valve, the second solenoid valve, the manual opening and closing cock, and the minute adjustment can be made from the air supply source side to the pipeline communicating with the air discharge port Workpieces can be safely attached to and detached from the table because the various cocks are sequentially arranged. That is, even if the grinding operation is completed by the surface grinder, the rotation of the grindstone is usually not stopped immediately to shake off the grinding fluid contained in the grindstone by centrifugal force, but is usually rotated for about 15 to 20 minutes. The work is removed from the table while rotating. At this time, when the fully opened air off cock unnecessary attention, but the work will hit the grindstone lifted largely from the table, it is possible to prevent a trace amount adjustable cock, and a plurality of the traces adjustable cock, By dividing the air discharge ports into several groups, only the necessary discharge ports are opened according to the size and shape of the work, so that unnecessary grinding fluid mist can be prevented from being generated from the table. Furthermore, even if dust or the like is clogged in the open / close cock and air leaks or the cock is forgotten, the air supply to the table can be prevented during operation by linking the solenoid valve with the feed switch of the table. Furthermore, the first electromagnetic valve is formed by passing through the first electromagnetic valve in conjunction with turning off of the table feed switch and being shut off by the first electromagnetic valve in conjunction with turning on of the table feed switch. If the air pocket up to the discharge port is removed by opening the second solenoid valve in conjunction with the turning on of the table feed switch, air that causes the work to float on the table side may be sent out when the table feed is activated. This prevents problems associated with unexpected lifting of the workpiece.

[0006]

DETAILED DESCRIPTION FIG. 1 shows a workpiece attachment apparatus portion of the surface grinding machine according to the present invention, on the table 1 having an electromagnetic chuck a work detachment, not shown grindstone is rotated by the rotary drive unit. The table 1 has twelve air discharge ports 3 formed on the upper surface in the illustrated example, and these air discharge ports 3 are divided into three pipes 4, 5, and 6, respectively, to form three groups. And the first conduit 4 is
Two passages 7 formed at the left end in the table 1,
8, these passages 7, 8 extend parallel to each other and each have two air outlets 3. Similarly, the second conduit 6 communicates with two passages 9 and 10 formed at the right end of the table 1, and these passages 9 and 10 extend in parallel with each other and each have two passages 9 and 10. It has an air discharge port 3. The middle conduit 5 communicates with three passages 11, 12, and 13 formed in the table 1, and these passages 11, 12, and 13 extend in parallel with each other to form the middle passage 12. Has one air outlet 3, and the passages 11 and 13 on both sides have two air outlets 3 respectively.

Further, the three pipes 4, 5, and 6 are provided with three micro-adjustable screw cocks 1 attached to an air distribution housing 21 integrally provided at the lower left end of the table 1.
4, 15, and 16, respectively, and are connected to one air supply pipe 17 via the screw cocks 14, 15, 16 and the air distribution casing 21. The one air supply pipe line 17 is made of a flexible hose corresponding to the reciprocating feed operation of the table 1 and has a manual opening / closing cock 18 for supplying air from an air supply source (not shown) to the first. It is led to the manual opening / closing cock 18 via the electromagnetic valve 19 and the second electromagnetic valve 20. The first electromagnetic valve 1
9 and the second electromagnetic valve 20 are linked to an ON-OFF switch (not shown) for the feed operation of the table 1, and when the feed of the table 1 is turned ON, the first electromagnetic valve 1 is turned ON.
9 is shut off, the second electromagnetic valve 20 is opened to the outside air, and the air accumulated between the first electromagnetic valve 19 and the air discharge port 3 of the table 1 is removed.

Next, a case where a work is mounted on the table 1 and removed will be described. When attaching a work to table 1,
First, the manual opening / closing cock 18 is closed, and the three micro-adjustable screw cocks 14, 15, 16 are all closed, and the air supply to the table 1 is completely cut off. Then, the work is placed on the table 1, and the work attaching / detaching electromagnetic chuck of the table 1 is operated to fix the work. When removing the work from the table 1, the electromagnetic chuck for attaching and detaching the work of the table 1 is demagnetized, the manual opening / closing cock 18 is opened, and the size and the size of the work among the three minutely adjustable screw cocks 14, 15, and 16 are determined. Open the appropriate screw cock gradually according to the shape.
When these screw cocks are opened, they are blown out from the air discharge port 3 of the table 1 with an appropriate strength according to the air work.
The work floats from the table 1 to a predetermined height. The lifted work is pulled to the side and removed from the table 1.

During the work attachment / detachment operation, the table feed switch is OFF, so that the first electromagnetic valve 19 is opened to supply air to the second electromagnetic valve 20, and the second electromagnetic valve 20 is manually operated. Air is supplied to the open / close cock side.

As is apparent from the above description, according to the structure of the present invention, an air discharge port for removing a work is formed on a table, and a pipe communicating with the air discharge port is connected to a first line from an air supply source. Since the solenoid valve, second solenoid valve, manual open / close cock, and cock that can be finely adjusted are arranged sequentially, work removal work can be easily and reliably performed, and damage to the table and work can be prevented.
It can prevent the work from hitting the grindstone while the grindstone is rotating to remove the grinding fluid contained in the grindstone by centrifugal force. As a result, air can be supplied only to the necessary parts, and it is also possible to prevent unnecessary grinding liquid mist from being generated from the table. Also, even if you forget to close the cock, the solenoid valve is linked with the table's feed switch to prevent accidental supply of air to the table during work and unexpected lifting of the work due to air accumulation etc. be able to.

[0010]

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a work attachment / detachment device for a surface grinding machine according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Table 3 Air discharge port 4 Pipeline 5 Pipeline 6 Pipeline 14 Screw cock 15 Screw cock 16 Screw cock 18 Manual open / close cock 19 First electromagnetic valve 20 Second electromagnetic valve

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuo Minagawa 1-7-2 Suehirocho, Ome-shi, Tokyo Inside the joint-stock company (72) Inventor Noboru Matsumoto 1-7-2 Suehirocho, Ome-shi, Tokyo 2 shares (56) References JP-A-57-173461 (JP, A) JP-A-62-157751 (JP, A) JP-A-59-192432 (JP, A) Jpn. , U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B24B 41/02 B23Q 3/154 B24B 7/02

Claims (1)

(57) [Scope of request for utility model registration] A table (1) having an electromagnetic chuck for attaching and detaching a work, an air discharge port (3) for removing the work formed on the table, and a pipe (4, 5) communicating with the air discharge port. , 6) from the air supply source side ,
First electromagnetic valve (19) that shuts off the air supply in conjunction with the feed operation of the table, interlocks with the feed operation of the table
The second electromagnetic valve (20), which is opened to the outside air , the manual opening / closing cock (18), and the micro-adjustable cock (1)
4, 15 and 16) are sequentially arranged.