JP2003170343A - Tumbling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tumbling device capable of machining a surface of a workpiece in a short period of time. <P>SOLUTION: This tumbling device is furnished with a vibration barrel to charge a charge 3 in an inside 2a of it and is furnished with a support part 6 to separate the charge 3 from the vibration barrel 2A and support it in the inside 2a. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tumbling device for rolling a charge in a barrel.

[0002]

2. Description of the Related Art In aero engine parts such as wings,
Since the surface roughness of the part surface has a large effect on performance,
A tumbling process is performed as a surface finishing process for removing irregularities on the surface of a component.

Conventionally, this type of tumbling process is performed using a tumbling device 1 shown in FIG. 2, for example. This tumbling device 1 has a vibrating barrel 2B having a circular cross section.
It is possible to apply a vibration to the plurality of components (here, blades) 3 and the polishing media 4 which are mixed and charged in the vibrating barrel 2 and which are to be subjected to surface processing. The vibration causes the blade 3 and the polishing medium 4 to come into contact with each other and move relative to each other, whereby the irregularities on the surface of the blade 3 can be removed.

[0004]

However, the conventional tumbling device as described above has the following problems. In the vibrating barrel, the processed part and the polishing medium move at the same time while vibrating, so that the relative moving speed between them is hard to be large.
Therefore, there has been a problem that the work time for removing the irregularities of the machined part and ensuring the surface roughness of the part becomes long. For example, 0.7112μ for processed parts of titanium material
It takes about 3 hours to process the surface roughness of m (28 μinch) to 0.4064 μm (16 μinch).

The present invention has been made in consideration of the above points, and an object of the present invention is to provide a tumbling apparatus capable of performing surface processing in a short time.

[0006]

In order to achieve the above object, the present invention employs the following constitutions. The tumbling device according to claim 1, wherein the tumbling device is provided with a vibrating barrel into which a charged material is loaded, and a supporting portion that separates and supports the charged material from the vibrating barrel in the inside. It is characterized by being provided.

Therefore, in the tumbling device of the present invention,
When a supporting part supports a processed component as a charging material and vibration is applied in a state where the polishing media is loaded in the vibrating barrel, only the polishing media vibrates. This increases the relative speed between the machined part and the polishing media and increases the polishing force,
It is possible to reduce the surface processing time for the processed part as compared with the conventional case.

A tumbling device according to a second aspect of the present invention is the tumbling device according to the first aspect, wherein the supporting portion is a fixing jig and a masking jig for the charged material.

Therefore, in the tumbling device of the present invention,
Since the supporting portion is used as a fixing jig and a masking jig, the masking work time before tumbling can be shortened. Further, although the processing in the vibrating barrel is performed on a large number of processed parts, by using the supporting portion as a fixing jig, it is possible to make a single sink line.

A tumbling device according to a third aspect of the present invention is the tumbling device according to the first or second aspect, wherein the vibrating barrel is rotatable at least around an axis.

Therefore, in the tumbling device of the present invention,
By fixing the processed part to the polishing medium loaded in the vibrating barrel, it becomes possible to further increase the relative speed between the processed part and the polishing medium.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a tumbling device of the present invention will be described below with reference to FIG. In this figure, the same components as those of FIG. 2 shown as a conventional example are designated by the same reference numerals, and the description thereof will be omitted.

The tumbling device 1 shown in FIG. 1 has a vibrating barrel 2A having a charging space 2a and a substantially circular cross section. The vibrating barrel 2A is driven by a rotary driving device 5 having a rotary motor and the like. The polishing medium 4 is rotated around the vertical axis while vibrating. . An opening 2b is formed at the upper end of the vibrating barrel 2A, and a plurality of supporting portions 6 are suspended inside the vibrating barrel 2A via the opening 2b.

Each of the supporting portions 6 separates (in a non-contact manner) the blade 3, which is a charging material, from the vibrating barrel 2A, and fixes and supports the blade 3 in a state of being separated from each other. ,
It also serves as a masking jig for tumbling pretreatment.

The wing 3 is formed by the tumbling device having the above structure.
To perform surface treatment on the vibrating barrel 2,
The blade 3 is supported and fixed to the support portion 6 in the charging space 2a of A, and the polishing medium 4 and the compound composed of powder and a small amount of water are charged in the charging space 2a. Here, as the polishing media 4, a polishing medium made of ceramics (porcelain) and having both ends of a substantially columnar cut diagonally was used.

Next, the polishing medium 4 is vibrated via the rotary drive unit 5. At this time, the polishing medium 4 moves by being given kinetic energy by the vibration of the vibrating barrel 2A, but the blade 3 is separated from the vibrating barrel 2A and does not move. Therefore, the relative speed at the time of contact between the blade 3 and the polishing medium 4 increases, and as a result, the unevenness of the blade 3 can be removed with the polishing force improved.

For example, conventionally, the surface roughness of the blade 3 made of titanium is 0.7112 μm (28 μinch) and 0.40.
It took 3 hours to finish up to 64 μm (16 μinch), but in the present embodiment, the required value could be satisfied by processing for about 1 hour.

As described above, in the tumbling device 1 of the present embodiment, the relative speed between the blade 3 and the polishing medium 4 is increased and the polishing power is improved, so that the blade 3 with respect to the surface roughness required value is satisfied. Surface processing can be performed in a short time, and work efficiency can be significantly improved.

Further, conventionally, since a large number of blades 3 are processed at once in the vibrating barrel 2A, it takes a long time to take out and remove them, which is not suitable for so-called one-line production. In the present embodiment, since the support portion 6 is used as the fixing jig and the masking jig for the blade 3, the removal and the masking removal can be performed at one time, which contributes to the reduction of the working time and one piece. A sink line can be realized.

In the above embodiment, an example in which the surface of the blade 3 is subjected to surface processing has been described, but the invention can be applied to various parts other than the blade.

On the other hand, in the above-mentioned embodiment, while the polishing media is rotated around the vertical axis while being vibrated by the vibrating barrel, this rotation is not always necessary, and only the vibration is applied to the polishing media. May be

[0022]

As described above, in the tumbling device according to the first aspect of the present invention, the supporting portion is configured to support the charging material separately from the vibrating barrel. As a result, in this tumbling device, it is possible to perform surface processing on the charged material in a short time, and there is an effect that working efficiency is significantly improved.

In the tumbling device according to a second aspect of the present invention, the supporting portion is a fixing jig and a masking jig for the charged material. As a result, in this tumbling device, it is possible to contribute to shortening the working time and to realize the effect of realizing a single-passage line.

In the tumbling device according to the third aspect, at least the vibrating barrel is configured to be rotatable about the axis. As a result, in this tumbling device, it becomes possible to perform the surface processing on the charging material in a shorter time, and there is an effect that the working efficiency is further improved.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of the present invention, and is a schematic sectional view of a tumbling device in which a blade is supported separately from a vibrating barrel.

FIG. 2 is a schematic cross-sectional view showing an example of a tumbling device of the related art.

[Explanation of symbols]

1 tumbling device 2A vibration barrel 3 wings (charge) 6 Support (fixing jig and masking jig)

Claims (3)

[Claims] 1. A tumbling device having a vibrating barrel into which a charging material is loaded, wherein the tumbling apparatus includes a support portion that separates and supports the charging material from the vibrating barrel. Tumbling device. 2. The tumbling device according to claim 1, wherein the supporting portion is a fixing jig and a masking jig for the charging material. 3. The tumbling device according to claim 1, wherein the vibrating barrel is rotatable at least around an axis.