JP2002292554A - Barrel finishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove medium remained on a finished workpiece easily. SOLUTION: A passage 30 through which the finished workpiece 50 taken out from a barrel body 20 is fed together with the medium 60, is provided with a plurality of holes which prevents the finished workpiece 50 from passing through and permits the medium to pass through, and turning means which turns over the posture of the finished workpiece vertically on the way of the passage 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a barrel polishing apparatus.

[0002]

2. Description of the Related Art Sintered machine parts are used for various machine parts because accurate parts can be mass-produced efficiently in a short time at low cost. Sintered machine parts are generally manufactured by sintering a molded article formed by a mold and then performing post-processing such as machining, heat treatment, and surface treatment.

[0003] As post-processing for obtaining an accurate product, there is sizing and coining for recompressing a sintered part with a mold. In the case of performing post-processing by recompression such as sizing and coining, burrs generated at joints and sliding portions of a mold at the time of molding a part are removed in advance. Also, prior to sizing and coining, a part after sintering may be chamfered.

[0004] In order to remove burrs on parts before recompression,
Alternatively, barrel finishing performed for chamfering is polishing performed by rotating an object to be polished in a rotating container (barrel) together with a granular or powdery polishing medium (media) and colliding with the medium or friction. Various types of apparatuses are used, such as a rotary barrel polishing apparatus and a vibration barrel polishing apparatus.

In such a barrel polishing apparatus, as shown in FIG. 4, the article to be polished 100 after barrel polishing moves on a passage 120 together with a medium 110. Passage 1
20 has a plurality of holes 121 that pass through the medium 110 and block the passage of the article to be polished 100. The medium 110 falls from the hole 121 and is collected.
The article to be polished 100 is collected as a component at the end of the passage 120.

[0006]

If the article to be polished 100 has a simple shape such as a spur gear, the passage 12
Media 110 is removed while traveling on
At the 20 end, a component in which the medium 110 does not remain can be obtained. However, in the article to be polished 100 having a shape as shown in FIG. 5, the medium 110 tends to remain inside, and the medium 110 may not be removed even at the end of the passage 120. If the sizing of the part where the medium 110 remains inside as it is will damage the sizing mold, the medium 110 must be reliably removed from the part.

In order to remove the media 110 from the article to be polished 100, as shown in FIG. 4, the articles to be polished 100 discharged from the barrel in a stacked state are first arranged flat, and then the components are removed one by one. Since the manual operation is performed in two steps of removing the medium 110 while checking, the work time and the operation cost are increased.
In addition, there is a problem that the work time is further increased in order to confirm again whether or not the medium 110 remains in the component before recompression.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is possible to extremely easily remove a medium remaining in a barrel polished product, to reduce work time and work cost, and to improve workability. An object of the present invention is to provide a barrel polishing apparatus.

[0009]

According to a first aspect of the present invention, there is provided a barrel polishing apparatus having a passage through which an article to be polished taken out of a barrel is fed together with a medium. Is characterized by having a plurality of holes for blocking the passage of the article to be polished and allowing the medium to pass therethrough, and a turning means for turning the posture of the article to be polished up and down is provided in the middle of the passage. In the barrel polishing apparatus according to the present invention, the medium remaining on the polished article can be removed very easily by turning the posture of the polished article in the vertical direction.

According to a second aspect of the present invention, in the barrel polishing apparatus of the first aspect, the turning means includes a slope portion provided on the upper surface of the passage and separated upward from the upper surface of the passage in the traveling direction of the article to be polished. It is characterized by having. In the barrel polishing apparatus according to the present invention, the object to be polished can be rotated by configuring the object to be polished over the slope portion.

The invention according to claim 3 is the invention according to claim 1 or 2
Is characterized in that the turning means is detachable from the passage. In the barrel polishing apparatus according to the present invention, since the turning means is detachable,
When polishing an article to be polished that does not require turning in the middle of the passage, the turning means can be removed, and the conveyance of the article to be polished can be facilitated.

According to a fourth aspect of the present invention, in the barrel polishing apparatus according to any one of the first to third aspects, a plurality of turning means are provided. Since the barrel polishing apparatus according to the present invention includes a plurality of turning means and turns the article to be polished many times, media remaining on the article to be polished can be effectively removed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing a barrel polishing apparatus 10 according to the present invention. The barrel polishing apparatus 10 is of a vibration type, and the barrel main body 20 for polishing the workpiece 50 is provided with the workpiece 50 after barrel polishing.
A passage 30 for recovering the water is connected.

The barrel main body 20 is formed in a helical tubular shape, and vibrates the article to be polished 50, which is continuously loaded from a loading port (not shown) provided upstream, together with the medium 60. The article to be polished 50 is polished while proceeding in the spiral tube by vibration, and is polished together with the medium 60 in the barrel main body 2.
0 is discharged from a discharge port 21 provided on the downstream side.

The passage 30 is provided at the outlet 21 of the barrel body 20.
And is formed on an inclined surface that gradually descends toward the downstream. As shown in FIG. 2, a plurality of holes 31 are formed in the passage 30 so as to prevent passage of the workpiece 50 and allow the medium 60 to pass through. This hole 31
Is formed in a mesh shape in the present embodiment, but may be, for example, a slit or a punched hole. In addition, passage 3
In the middle of 0, a plurality of turning members 40 that are substantially perpendicular to the traveling direction of the polished article 50 are provided as turning means for turning the posture of the polished article 50 in the vertical direction.

The turning member 40 is formed in a substantially triangular prism shape, and is provided on the upper surface of the passage 30 so that one side surface of the turning member 40 becomes a slope 40a that goes uphill from the upper surface of the passage 30. On the bottom surface of the turning member 40, which is in contact with the upper surface of the passage 30, a rod-shaped support portion 40b that can be inserted into the hole 31 of the passage 30 is provided. The turning member 40 can be attached to and detached from the passage 30 by inserting and removing the support portion 40 c into and from the hole 31. The support portion 40c connects the turning member 40 to the passage 3
Although the structure may be fixed to zero, the structure may be such that the turning member 40 is supported so as to be able to move up and down with the vibration of the passage 30. In addition, the turning member 40 is provided on the slope 40a on the upstream side.
Is formed gently to facilitate passage of the article 50 to be polished, and by making the downstream slope portion 40b a steep shape, the posture of the article 50 to be polished can be easily turned.

The article 50 to be polished is, for example, an internal gear (internal gear) having a step inside as shown in FIG. 5, and has a shape in which the medium 60 is likely to remain at the step portion or between the teeth. I have.

The barrel polishing apparatus 1 constructed as described above
At 0, the article to be polished 50 continuously loaded into the barrel main body 20 is polished by the vibration of the barrel main body 20. The article 50 to be polished after barrel polishing is continuously discharged from the discharge port 21 onto the passage 30 together with the medium 60. Passage 3
0 is the vibration of the barrel body 20 being transmitted and vibrating,
Due to the vibration and the inclination of the passage 30, the workpiece 50 and the medium 60 on the passage 30 gradually move to the downstream of the passage 30.

As shown in FIG. 3, the article 50 to be polished moving on the passage 30 is turned upside down when it gets over the turning member 40. When the turning member 40 turns the posture of the article 50 to be polished, the medium 60 remaining inside the article 50 to be polished drops off onto the passage 30 and drops from the hole 31. A plurality of turning members 40 are provided in the middle of the passage 30, and the workpiece 50 is
Since the medium passes above, if the posture can be turned at least once, the medium 60 remaining inside the article 50 to be polished can be dropped. In addition, the turning member 40
The polishing object 50, which could not be passed over once, passes over the rotating member 40 and eventually passes through the passage 3 while dropping the media 60 further while riding on the member 40 several times.
0 is moved downstream.

As described above, the object to be polished 50 is moved on the passage 30 having the hole 31 while the posture thereof is rotated a plurality of times in the vertical direction by the turning member 40. Can be removed.

It should be noted that the shapes, combinations, and the like of the components shown in the above-described embodiment are merely examples, and various changes can be made based on design requirements without departing from the spirit of the present invention. In the illustrated example, since the vibration type barrel polishing apparatus 10 is used, the polishing target 50 is moved by using the vibration of the barrel main body 20. For example, the polishing target 50 such as a conveyor is forcibly moved. The configuration may be such that the object to be polished 50 is moved by a device that moves the object to be polished.

In the above-described embodiment, the turning member 40 is provided substantially perpendicular to the traveling direction of the workpiece 50.
It may be provided so as to obliquely cross the traveling direction.

[0023]

As described above, in the barrel polishing apparatus according to the first aspect, the posture of the article to be polished moving on the passage having the hole for passing the medium and preventing the article from being polished is turned. By turning it up and down by means, media remaining on the article to be polished can be removed very easily, and a barrel polishing apparatus with good workability can be realized which can reduce work time and work cost.

Further, since the medium can be easily removed without manual operation, the operation cost is reduced.
Breakage of the mold for recompression can be prevented.

In the barrel polishing apparatus according to the second aspect, the object to be polished can be turned by a very simple structure in which the object to be polished is turned by forming the object to be polished on the slope portion. In addition, a barrel polishing apparatus capable of easily obtaining a part having no residual media can be realized at low cost.

In the barrel polishing apparatus according to the third aspect, since the turning means is detachable with respect to the passage, the polishing means is removed by removing the turning means when polishing an object to be polished which does not require turning in the middle of the passage. Since the transfer of articles can be made smooth and a turning means is additionally provided as necessary, a barrel polishing apparatus with good workability is realized.

In the barrel polishing apparatus according to the fourth aspect, by providing a plurality of turning means, the object to be polished is turned many times, so that the medium remaining on the object to be polished can be effectively removed. A barrel polishing apparatus capable of obtaining a polished article free of any residue is realized.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a barrel polishing apparatus according to the present invention.

FIG. 2 is a perspective view showing an embodiment of a passage and turning means.

FIG. 3 is a side view showing a state in which the object to be polished is turned by the turning means.

FIG. 4 is a side view showing a media removing operation in the conventional barrel polishing apparatus.

FIG. 5 is a cross-sectional view illustrating a shape of a polished product from which a medium is not easily removed.

[Explanation of symbols]

 Reference Signs List 10 barrel polishing apparatus 20 barrel main body 30 passage 31 hole 40 turning member (turning means) 40a slope section 50 object to be polished 60 media

Continued on the front page F term (reference) 3C058 AA01 AA09 AB03 AC01 CB03 CB05

Claims (4)

[Claims] 1. A barrel polishing apparatus provided with a passage through which an article to be polished taken out of a barrel main body is moved together with a medium, wherein the path blocks a passage of the article to be polished and allows the medium to pass therethrough. A barrel polishing apparatus, characterized in that a turning means for turning the position of the article to be polished up and down is provided in the middle of the passage. 2. The method according to claim 1, wherein the turning means has a slope provided on the upper surface of the passage and separated upward from the upper surface of the passage in the direction of travel of the article to be polished. Barrel polishing equipment. 3. The barrel polishing apparatus according to claim 1, wherein said turning means is detachable from said passage. 4. The barrel polishing apparatus according to claim 1, further comprising a plurality of turning means.