JPH0437667Y2 - - 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 not profitable enough to mechanize the cleaning work inside the holes using brushes. It is thought that it will fit.

[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 certain 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 the cylindrical body and supported, and the cylindrical body is connected to a motor via a pinion that meshes with a rack formed on the surface of the cylindrical body to move the brush into the hole in the workpiece. A work holding member that is pressed against the work when the brush is inserted into the hole of the work is mounted on the tip side of the cylindrical body in the axial direction of the rotating shaft. The feature is that it is attached via a spring that can be expanded and contracted.

[Effect]

According to the present invention, when the workpiece is positioned at a fixed position, the motor that drives the cylindrical body is first activated to rotate the pinion that meshes with the rack formed on the surface of the cylindrical body. A brush attached to the tip of a rotating shaft inserted and supported within the cylindrical body is inserted into a hole in the workpiece.

At this time, the work holding member attached to the tip side of the cylindrical body is pressed against the work and is strongly pressed by the elasticity of the spring, so that the work is securely fixed by the work 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 attached to the tip thereof is rotated within the hole of the workpiece to brush the inside of the hole.

When the inside of the hole has been cleaned in this way, the motor that drives the rotary shaft is stopped, and the motor that drives the cylindrical body is activated to extract the brush attached to the tip of the rotary shaft 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 main parts showing its operation.

In this example, a brush 1 is attached to the tip,
A rotary shaft 3 connected to a motor 2 at the rear end and driven to rotate is inserted into a cylindrical body 4 made of a metal pipe or the like, and is driven by bearings 5 and 6 provided at both ends of the cylindrical body 4. It is rotatably supported.

The cylindrical body 4 is a workpiece W positioned at a fixed position.
The cylindrical body 4 It is supported so as to be movable up and down by a guide shaft 9 provided in parallel with.

Further, the cylindrical body 4 is connected to a motor 12 fixedly installed on the base 7 via a pinion 11 that meshes with a rack 10 formed on the surface of the cylindrical body 4, and is driven up and down by the motor 12 to rotate. A brush 1 attached to the tip of a shaft 3 is inserted into and removed from a hole 13 of a workpiece W.

The distal end side of the cylindrical body 4 is provided with the workpiece W when the brush 1 is inserted into the hole 13 of the workpiece W.
The work holding member 14 that is pressed against the spring 15 that can be expanded and contracted in the axial direction of the rotating shaft 3
It is attached via.

The workpiece holding member 14 is formed into a cylindrical body with an open lower end surface, with the rotary shaft 3 protruding from the tip of the cylindrical body 4 passing through a lid 16 that closes the upper end surface, and the lid 16 is normally extended. The brush 1 is supported by a spring 15 at a position where it abuts against a stopper 17 provided at the tip of the rotating shaft 3, and the brush 1 is accommodated therein.

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, the motor 12 is operated to rotate the pinion 11 that meshes with the rack 10 of the cylindrical body 4 in the upward direction of the cylindrical body 4, and the rotating shaft 3 inserted and supported within the cylindrical body 4 is rotated. Lift it upward together with the motor 2 connected to the rear end of the shaft 3.

In this state, as shown in FIG. 2, the portion of the lid 16 that closes the upper end surface of the workpiece holding member 14 comes into contact with the stopper 17 provided at the tip of the rotary shaft 3, and the workpiece holding member 14 is closed. A brush 1 is housed therein.

When the work W is carried in and positioned at a fixed position, the motor 12 is operated again to rotate the pinion 11 in the downward direction of the cylindrical body 4, and the rotating shaft inserted and supported within the cylindrical body 4 is rotated. 3 is lowered, and the brush 1 attached to the tip of the rotating shaft 3 is inserted into the hole 13 of the workpiece W.

At this time, the workpiece holding member 14 attached to the tip side of the cylindrical body 4 is pressed against the workpiece W, and at the same time, the workpiece holding member 14 is pushed against the elasticity of the spring 15 from the tip side to the rear end side of the rotating shaft 3. Move relatively (as shown in Figure 1).

Thereby, the workpiece W is securely fixed by the workpiece holding member 14 that is strongly pressed against it by the elasticity of the spring 15.

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 13 of the work W to brush the inside of the hole 13.

Note that when the motor 12 is rotated in forward and reverse directions at a constant rotation angle or rotation speed during brushing, the brush 1 moves up and down inside the hole 13 of the workpiece W.
The inside is thoroughly cleaned.

When the cleaning inside the hole 13 is completed in this way, the motor 2 that rotationally drives the rotary shaft 3
is stopped, the motor 12 that drives the cylindrical body 4 is activated to raise the cylindrical body 4, and the rotary shaft 3 inserted and supported within the cylindrical body 4 is lifted upward.
Brush 1 attached to the tip of the rotating shaft 3
is extracted from the hole 13 of the workpiece W.

At this time, the work holding member 14 moves toward the tip of the rotary shaft 3 due to the repulsive force of the spring 15 and returns to the position where it contacts the stopper 17.
The brush 1 extracted from the hole 13 of the workpiece W is housed inside the brush 1 (as shown in FIG. 2), and the workpiece holding member 14 is completely separated from the workpiece W together with the brush 1 to hold the workpiece W. will be automatically canceled.

As described above, according to this embodiment, the cylindrical body 4, through which the rotating shaft 3, which is rotated by the motor 2, is inserted and supported, is driven up and down by the motor 12 which rotates the pinion 11 which meshes with the rack 10 formed on the surface of the cylindrical body 4. This extremely simple mechanism makes it possible to insert and remove the brush 1 attached to the tip of the rotating shaft 3 into and from the hole 13 of the workpiece W positioned in a fixed position, thereby automatically cleaning the inside of the hole 13.

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 or an abrasive brush containing alundum or corundum; 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 cross-sectional view of a main part showing another embodiment of the present invention, in which the whole or a part of the rotating shaft 3 which is rotationally driven by the motor 2 is formed into a hollow tube. A shower nozzle 20 that communicates with the inside of the hollow tube and serves as a brush 1 is attached.

A rotary connector C consisting of a sealed bearing 22 is used as a bearing 5 that rotatably supports the rotary shaft 3 inserted into the cylindrical body 4. A cleaning liquid supply pipe 23 is connected.

In this case, the burrs etc. remaining in the hole 13 of the work 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.
If the part is formed of a flexible tube such as a metal bellows, even if the hole 13 of the workpiece W is curved, the brush 1 can be smoothly inserted into the hole 13 and cleaned reliably.

[Effect of idea]

As described above, according to the present invention, a cylindrical body that supports a rotating shaft that is connected to a motor and driven to rotate is driven by a motor that rotates a pinion that meshes with a rack formed on the surface of the cylindrical body, and the brush attached to the tip of the rotating shaft is inserted and removed from the hole in the workpiece, and at the same time, the workpiece pressing member attached to the contact end of the cylindrical body is also engaged and disengaged from the workpiece, thereby automatically cleaning the inside of the hole in the workpiece. Therefore, this device is sufficiently profitable as a device for cleaning the inside of holes in pipe parts and block materials that are mass-produced to a certain 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 ... Cylindrical body, 10 ... Rack, 11 ... Pinion, 12 ...
...Motor, 13...Work hole, 14...Work holding member, 15...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. A rotary shaft is rotatably inserted and supported within the cylindrical body, and the cylindrical body is connected to a motor via a pinion that meshes with a rack formed on the surface of the cylindrical body, and the brush is inserted into the hole of the workpiece. A workpiece holding member is driven to be inserted into and removed from the workpiece, and on the tip side of the cylindrical body, the workpiece holding member is pressed against the workpiece when the brush is inserted into the hole of the workpiece.
An automatic cleaning device characterized in that the automatic cleaning device 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.