JPH0437668Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic cleaning device that automatically brushes and cleans the insides of pipes and perforations formed in various blocks.

[Prior art and its problems]

In various metal pipes and in perforations formed in bulk metal materials such as cylinder blocks and differential blocks used in automobile parts, burrs may remain from thread cutting during manufacturing, or cast burrs may occur. To prevent this, the inside of the hole is cleaned using a wire brush, a brush containing abrasive grains, etc.

However, the reality is that this cleaning work relies exclusively on manual labor, which poses the problem of extremely low productivity.

The reason why cleaning inside pipes and holes in cylinder blocks etc. is not mechanized is because pipe diameters and hole diameters vary depending on the type, and some pipes in particular have unusual curved shapes such as bends. This is because there are also tubes.

For this reason, although the work of spraying high-pressure showers to clean the insides of pipes and the perforations of various blocks has been automated, the work of brushing and cleaning the insides of the holes has not yet been automated.

However, for items that are mass-produced based on certain standards, such as pipe members and cylinder blocks used as part of automobile parts, it is sufficiently profitable to mechanize the cleaning work inside the holes using brushes. is considered to be suitable.

[Means for solving problems]

Therefore, an object of the present invention is to provide an automatic cleaning device that can automatically brush and clean the inside of a pipe or the inside of a perforation of a block that is mass-produced based on a predetermined standard using a simple mechanism.

To achieve this objective, the present invention is an automatic cleaning device that inserts a brush into a hole in a workpiece positioned at a fixed position and rotates it.The brush is attached to the tip and a motor is connected to the rear end to drive the brush. A rotating shaft is rotatably inserted into and supported by a cylindrical rod that serves as a piston rod of a double-acting cylinder, and is driven to insert and remove the brush into the hole of the workpiece, and the tip of the cylindrical rod A workpiece holding member that is pressed against the workpiece when the brush is inserted into the hole of the workpiece is attached to the side via a spring that can be expanded and contracted in the axial direction of the rotating shaft. .

[Effect]

According to the present invention, when the workpiece is positioned at a fixed position, the double-acting cylinder is driven to move the brush at the tip of the rotary shaft inserted and supported within the cylindrical rod that serves as the piston rod to the workpiece. insert it into the hole.

At this time, the workpiece holding member attached to the tip side of the cylindrical rod is pressed against the workpiece and is strongly pressed by the elasticity of the spring, and the workpiece is pressed against the workpiece.
It is securely fixed by the holding member.

In this state, the motor connected to the rear end of the rotary shaft is operated to rotate the rotary shaft, and the brush at the tip of the rotary shaft is rotated within the hole of the workpiece to move the inside of the hole. Blushing.

When the inside of the hole has been cleaned in this manner, the motor is stopped, the double-acting cylinder is driven again, and the brush attached to the tip of the rotating shaft is extracted from the inside of the hole of the workpiece.

At the same time, the workpiece holding member that had been pressed against the workpiece separates from the workpiece and its holding is automatically released.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described based on the drawings.

FIG. 1 is a front view showing an example of an automatic cleaning device according to the present invention, and FIG. 2 is an enlarged view of essential parts showing its operation.

In this example, a brush 1 is attached to the tip,
A rotary shaft 3 connected to the rear end of the rotary shaft 3 is rotatably driven by a motor 2, which is inserted into a cylindrical rod 5 which serves as a piston rod of a double-acting cylinder 4, and is provided at both ends of the cylindrical rod 5. It is rotatably supported by bearings 6 and 7.

The double-acting cylinder 4 has a cylindrical rod 5 attached to a piston 8 with both ends facing upward and downward.
A cylindrical rod 5 is installed on a base 9 provided directly above the workpiece W to be positioned at a fixed position, and has a rotary shaft 3 with a brush 1 attached thereto, and from which the tip protrudes.
The brush 1 is arranged such that one end thereof passes through the base 9, and is attached to the tip of the rotating shaft 3 by alternately supplying gas or liquid from both sides of the piston 8 to move the cylindrical rod 5 up and down. The word
It is adapted to be inserted into and removed from the hole 10 of the holder W.

On the tip side of the cylindrical rod 5, there is a work holding member 11 which is pressed against the work W when the brush 1 is inserted into the hole 10 of the work W. It is attached via an extensible spring 12.

The work holding member 11 is formed into a cylindrical body with an open lower end surface, with the rotary shaft 3 protruding from the tip of the cylindrical rod 5 passing through a lid 13 that closes the upper end surface, and the lid 13 is normally extended. The brush 1 is supported by the spring 12 in a position where it abuts against a stopper 14 provided at the tip of the rotary shaft 3, and the brush 1 is accommodated therein.

In the figure, reference numeral 15 denotes a box-shaped bracket for fixing the motor 2 connected to the rear end of the rotating shaft 3 to the cylindrical rod 5.

The above is an example of the configuration of the automatic cleaning device according to the present invention, and the operation thereof will be explained next.

First, gas is supplied into the double-acting cylinder 4 from the lower side of the piston 8 to drive the cylindrical rod 5 upward, and the rotary shaft 3 inserted and supported within the cylindrical rod 5 is rotated. Lift it upward together with the motor 2 connected to the rear end.

In this state, as shown in FIG. 2, the portion of the lid 13 that closes the upper end surface of the workpiece holding member 11 comes into contact with the stopper 14 provided at the tip of the rotating shaft 3, and the workpiece holding member 11 is moved inside. A brush 1 is housed therein.

When the workpiece W is carried in and positioned at a fixed position, gas is supplied into the double-acting cylinder 4 from above the piston 8 to drive the cylindrical rod 5 downward. The rotary shaft 3 inserted and supported therein is lowered, and the brush 1 attached to the tip of the rotary shaft 3 is inserted into the hole 10 of the workpiece W.

At this time, the workpiece holding member 11 attached to the tip side of the cylindrical rod 5 is pressed against the workpiece W, and at the same time, it is pushed against the elasticity of the spring 12 from the tip of the rotating shaft 3 toward the rear end. Move relatively (as shown in Figure 1).

Thereby, the workpiece W is pressed against the workpiece holding member 11, which is strongly pressed by the elasticity of the spring 12, and is securely fixed.

In this state, the motor 2 is operated to rotate the rotary shaft 3, and the brush 1 at the tip of the rotary shaft 3 is rotated within the hole 10 of the work W to brush the inside of the hole 10.

During brushing, when gas is alternately supplied into the double-acting cylinder 4 from the upper and lower sides of the piston 8 and the cylindrical rod 5 is moved up and down with a predetermined stroke, the brush 1 moves inside the hole 10 of the workpiece W. The inside of the hole 10 is thoroughly cleaned by moving up and down.

When the cleaning inside the hole 10 is completed in this way, first the motor 2 is stopped, and then gas is supplied into the double-acting cylinder 4 from the lower side of the piston 8 to drive the cylindrical rod 5 upward. The rotary shaft 3 inserted and supported within the cylindrical rod 5 is lifted upward, and the brush 1 attached to the tip of the rotary shaft 3 is extracted from the hole 10 of the workpiece W.

At this time, the work holding member 11 moves toward the tip of the rotary shaft 3 due to the repulsive force of the spring 12 and returns to the position where it contacts the stopper 14.
The brush 1 extracted from the hole 10 of the workpiece W is housed inside the brush 1 (as shown in FIG. 2), and the workpiece holding member 1 is held together with the brush 1.
1 is completely separated from the workpiece W, and the holding of the workpiece W is automatically released.

As described above, according to this example, the rotating shaft 3 rotationally driven by the motor 2 is connected to the double-acting cylinder 4.
The brush 1 attached to the tip of the rotary shaft 3 is inserted into the hole 10 of the workpiece W positioned at a fixed position by an extremely simple mechanism that is simply inserted and supported within the cylindrical rod 5 that serves as the piston rod. When the hole 10 is removed, the inside of the hole 10 can be automatically cleaned.

Therefore, it is fully profitable as an automatic cleaning device for metal pipes and bulk metal materials having perforations that are mass-produced to some extent based on certain standards, and productivity can be improved.

The brush 1 is not limited to a normal wire brush, an abrasive brush containing alundum or corundum, and, for example, as shown in FIG. 3, a wire 21 is implanted on the surface of a shower nozzle 20 that sprays cleaning liquid. A cleaning brush etc. can be used.

That is, FIG. 3 is a sectional view of a main part showing another embodiment of the present invention, in which a rotary shaft 3 rotated by a motor 2 is formed of a hollow tube and communicates with the inside of the hollow tube. A shower nozzle 20 serving as a brush 1 is attached.

The rear end side of the rotary shaft 3 made of a hollow tube is connected to a cleaning liquid supply pipe 23 via a rotary connector C made of a sealed bearing 22 disposed within a box-shaped bracket 15.

In this case, the burrs, etc. remaining in the hole 10 of the workpiece W can be removed by brushing with the wire 21 of the rotating brush 1, and at the same time, the removed burrs, etc. can be washed away with the cleaning liquid sprayed from the shower nozzle 20. As a result, the cleaning effect is very good.

Note that the shower nozzle 20 is the shaft of the brush 1.
By forming the part with a flexible tube such as a metal bellows, even if the hole 10 of the workpiece W is curved, the brush 1 can be smoothly inserted into the hole 10 to ensure cleaning.

[Effect of idea]

As described above, according to the present invention, a rotary shaft that is connected to a motor and driven to rotate is inserted and supported within a cylindrical rod that serves as a piston rod of a double-acting cylinder using an extremely simple mechanism. ,
At the same time that the brush attached to the tip of the rotating shaft is inserted into and removed from the hole in the workpiece, the workpiece holding member attached to the tip side of the cylindrical rod is also disengaged from the workpiece, and the brush is inserted into and removed from the hole in the workpiece. It has the excellent effect of being able to automatically clean the area. Therefore, the present invention is sufficiently profitable as a device for cleaning the inside of holes in pipe parts and block materials that can be mass-produced to some extent, such as automobile parts, and can automate the cleaning work and contribute to improving productivity.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of an automatic cleaning device according to the present invention, Fig. 2 is an enlarged view of main parts showing its operation, and Fig. 3 is a sectional view of main parts showing another embodiment of the present invention. be. Explanation of symbols, W...Work, 1...Brush, 2
... Motor, 3 ... Rotating shaft, 4 ... Double acting cylinder, 5 ... Cylindrical rod, 8 ... Piston,
DESCRIPTION OF SYMBOLS 10... Hole of a workpiece, 11... Work holding member, 12... Spring, 20... Shower nozzle, 21... Wire.

Claims (1)

[Claims for Utility Model Registration] (1) In an automatic cleaning device that inserts a brush into a hole in a workpiece positioned at a fixed position and rotates it, the brush is attached to the tip and a motor is connected to the rear end to drive the brush. The rotating shaft is
The brush is rotatably inserted and supported in a cylindrical rod that serves as a piston rod of a double-acting cylinder, and is driven to insert and remove the brush into the hole of the workpiece. An automatic cleaning device characterized in that a workpiece holding member that is pressed against the workpiece when the workpiece is inserted into a hole in the workpiece is attached via a spring that can be expanded and contracted in the axial direction of the rotating shaft. (2) The automatic cleaning device according to claim 1, wherein the brush comprises a wire embedded on the surface of a shower nozzle that sprays cleaning liquid. (3) The automatic cleaning device according to claim 1, wherein the workpiece is a metal pipe or a bulk metal material having perforations.