JP3687234B2 - Deburring device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a deburring device that continuously removes burrs from a large number of workpieces that are loose parts.
[0002]
[Prior art]
Conventionally, as a deburring device that removes burrs from a large number of workpieces that are loose parts, a container is swung or rotated while a large number of workpieces are put together with abrasive grains in the container. Proposals have been made to remove burrs from an object to be processed by rubbing the object with abrasive grains. This type of deburring apparatus is a batch process in which, after the deburring of the object to be processed put in the container is finished, the object to be processed is taken out from the container and the next object to be processed is put into the container together with the abrasive grains. ing.
[0003]
[Problems to be solved by the invention]
As described above, since the conventional deburring apparatus is a batch process, the work must be interrupted every time a batch of workpieces is deburred, and the efficiency of the deburring work is reduced. Have the problem of being bad. In addition, since abrasive grains are used, it is necessary to select abrasive grains according to the hardness of the object to be processed, and to remove the abrasive grains mixed in the object to be processed. .
[0004]
The present invention has been made in view of the above-mentioned reasons, and its object is to improve the efficiency of the deburring operation by allowing the deburring operation to be performed continuously, and to avoid using abrasive grains. Thus, an object of the present invention is to provide a deburring device that eliminates the need for removing abrasive grains.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, a cylindrical processing tank arranged with the center line as the vertical direction, and a workpiece to be processed which is a fixed part of the processing tank and is inclined along the peripheral wall of the processing tank and is a rose part. A conveying path, a vibration device that applies vertical and circumferential vibrations to the processing tank so that the objects to be processed move along the conveying path while rubbing each other, and an object to be conveyed on the conveying path A liquid supply device that applies liquid to the liquid and a drainage device that discharges foreign matter generated by rubbing of the processing object together with the liquid from the processing tank , and a part of the processing object is provided in at least one place of the conveyance path. A branch path with a drop portion formed at the tip in the conveying direction of the workpiece is provided, and the workpiece that has passed through the branch path falls from the drop portion and joins the workpiece that does not pass through the branch path. When both sides in the direction of travel change Those that by crossing the branch path so that. According to this configuration, the object to be processed can be moved along the conveying path by vibrating the processing tank in the vertical direction and the circumferential direction, and the object to be processed can be continuously conveyed. Since the objects to be processed rub against each other while the objects to be processed are conveyed in this way, the burrs of the objects to be processed are removed by this rubbing. Thus, continuous processing is possible without using abrasive grains, and the problems of the conventional apparatus are solved. Moreover, since the liquid is applied to the object to be processed, the fine powder generated by rubbing the object to be processed is removed by the liquid, and a beautiful finish can be expected. The fine powder can be recovered together with the liquid and easily removed. Furthermore, the workpieces are once diverted and then merged, and at the time of merging, the left and right relations of the two are interchanged. The effect of deburring by greatly increasing and rubbing the objects to be processed can be further promoted.
[0006]
According to a second aspect of the present invention, in the first aspect of the present invention, a through hole for discharging the liquid supplied from the liquid supply device from the conveying path is formed in a part of the conveying path. According to this configuration, since the liquid is discharged through the through hole provided in the conveyance path, the liquid containing fine powder does not flow down the conveyance path and the fine powder does not adhere to another object to be processed. According to a third aspect of the present invention, in the first or second aspect of the present invention, at least one portion of the transport path has a top and bottom step, and a drop portion is formed on which a workpiece to be transported along the transport path falls. It is what. According to this configuration, since the object to be processed rolls when the object to be processed falls at the head part, the objects to be processed are not transported while being overlapped, and almost the entire surfaces of the objects to be processed are rubbed against each other. It becomes possible.
[0008]
According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the liquid contains a rust inhibitor. According to this configuration, it is possible to perform rust prevention treatment simultaneously with deburring, and work efficiency is further improved.
According to a fifth aspect of the present invention, in the first to third aspects of the invention, the liquid is a foamable substance. Here, the foaming substance means that foaming easily occurs, and for example, soapy water can be used. When such a foaming substance is used, the fine powder adheres to the foam and floats up from the object to be treated, so that the fine powder can be easily removed, and the foam acts as a cushion to alleviate the collision between the objects to be treated. It is possible to prevent the processed material from being damaged.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, the deburring device vibrates a cylindrical processing tank 1 with a vibration device 2, and an inclined surface forming a part of a spiral is connected to the inside of the processing tank 1. A ring-shaped transport path 3 that makes one turn around the processing tank 1 is formed. The conveyance path 3 is formed in a substantially U-shaped or bowl-shaped cross section. The vibration device 2 uses a vibration motor 21, and the vibration motor 21 is fixed to a vibration table 22 that is integrally coupled to the lower surface of the processing tank 1. The vibration table 22 is placed on the installation table 24 via a vibration isolation spring 23 so that the vibration of the vibration table 22 is attenuated by the vibration isolation spring 23 and hardly transmitted to the installation table 24. That is, the vibration transmitted to the floor on which the mounting table 24 is placed is reduced. In this way, the vibration exciter 2 is configured by the vibration exciter 22, the anti-vibration spring 23, the mounting base 24, and the vibration motor 21.
[0010]
The vibration motor 21 is mounted with the weight eccentrically attached to the rotation shaft of the motor, and the motor and the weight are housed in a motor housing. Therefore, the motor housing vibrates in a plane substantially orthogonal to the rotation axis of the motor as the motor rotates. By attaching such a vibration motor 21 to the vibration table 22 so that the rotation axis is inclined with respect to the vertical direction, the treatment tank 1 can be vibrated in the vertical direction and the circumferential direction in accordance with the operation of the vibration motor 21. It becomes possible. That is, by adjusting the inclination of the vibration motor 21, the smaller the inclination of the rotation axis of the vibration motor 21 with respect to the vertical direction, the greater the vibration component in the circumferential direction of the treatment tank 1, and the greater the inclination of the rotation axis of the vibration motor 21. The more the vibration component in the vertical direction of the treatment tank 1 is increased. Therefore, if the inclination of the vibration motor 21 with respect to the vibration table 22 is adjusted, the vibration component of the processing tank 1 can be set appropriately.
[0011]
As described above, when the processing tank 1 is vibrated in the vertical direction and the circumferential direction by the vibration motor 21, the object to be processed placed on the transport path 3 moves along the transport path 3. Whether the object to be processed moves clockwise or counterclockwise when viewed from above the conveyance path 3 depends on whether the rotation shaft of the vibration motor 21 is tilted to the left or right with respect to the vertical direction. Further, if the tilt angle is adjusted, the moving speed of the object to be processed can be adjusted.
[0012]
A funnel-shaped charging cylinder 4 is disposed above a proper position of the transport path 3 so that an object to be processed can be input onto the transport path 3. Further, a drop portion 5 is formed at an appropriate position on the floor of the conveyance path 3. The drop portion 5 is formed so that the workpiece is dropped in the moving direction of the workpiece. Further, as shown in FIG. 3, the conveying path 3 is formed with a bowl-shaped branch path 6 extending from the drop part 5, and the workpiece is divided by the branch path 6, and a part of the workpiece is processed. Falls on the head part 5, the remaining objects to be processed pass through the branch path 6, fall from the dropping part 7, which is the tip of the branch path 6, to the conveyance path 3, and the objects to be processed divided in the branch path 6 join again. Will do. Here, the branch path 6 obliquely crosses the transport path 3, and depending on the positional relationship between the transport path 3 and the branch path 6, the left and right of the object to be processed that falls at the drop portion 5 and the object to be processed that has passed through the branch path 6. The positional relationship of is switched. In the illustrated example, as indicated by an arrow, the workpiece that has passed through the left side of the transport path 3 when introduced into the branch path 6 passes through the right side of the transport path 3. Thus, by forming a part of the conveyance path 3 in a three-dimensional intersection, the objects to be processed can be mixed well, the objects to be processed can be rubbed together, and the deburring effect can be enhanced. is there.
[0013]
A liquid supply device 11 that applies liquid in a shower-like manner to the object to be processed is disposed above an appropriate place in the conveyance path 3. The liquid applied to the object to be processed is mainly composed of water, and a liquid containing a rust preventive agent for performing an antirust process on the object to be processed or a foaming substance such as soapy water is used. If a rust inhibitor is used, rust prevention treatment can be performed simultaneously with deburring, and the working time can be shortened. In addition, when a foamable substance is used, bubbles are interposed between the objects to be processed, and it is possible to suppress the objects to be processed from being damaged due to collision between the objects to be processed.
[0014]
A through hole 12 is formed in the wall of the above-described drop portion 5, and the liquid supplied from the liquid supply device 11 and flowing through the transport path 3 is discharged to the bottom surface of the processing tank 1 through the through hole 12. A discharge pipe 13 as a drainage device is connected to the bottom wall of the processing tank 1, and the liquid discharged through the discharge pipe 13 is returned to a management tank (not shown), and foreign matter such as fine powder is removed and cleaned in the management tank. Then, the liquid supply device 11 discharges the liquid again. In this way, since the liquid is circulated, the amount of liquid discharged outside the system is reduced, and the influence on the environment is reduced. The through holes 12 may be provided not only in the head part 5 but also at appropriate locations on the floor of the conveyance path 3, and in this case, the objects to be processed easily rub against each other when some of the objects to be processed are caught in the through holes 12. At the same time, the burrs are rubbed against the through-holes 12 to assist deburring.
[0015]
It is desirable to form relatively small irregularities on the floor of the conveyance path 3. For example, a so-called diamond rubber plate 14 (see FIG. 3B) provided with a large number of pyramidal protrusions on a rubber plate is attached to the floor surface of the conveyance path 3, or a large number of hemispherical protrusions are provided instead of the pyramid type. By using a thing etc., the slip of a to-be-processed object is suppressed and the conveyance efficiency of a to-be-processed object becomes high.
[0016]
Since the object to be processed circulates in the conveyance path 3 with the above-described configuration, after performing the above-described processing for a required time, the shutter 8 (see FIG. 2) provided at the main point of the conveyance path 3 is opened to convey the object to be processed. It is dropped from the path 3 to the discharge path 9 and discharged from the processing tank 1 through the discharge path 9 to the outside.
[0017]
【The invention's effect】
According to the first aspect of the present invention, a cylindrical processing tank disposed with the center line as the vertical direction, and a workpiece to be processed, which is fixed to the processing tank and is inclined along the peripheral wall of the processing tank, is a rose part. A conveying path, a vibration device that applies vertical and circumferential vibrations to the processing tank so that the objects to be processed move along the conveying path while rubbing each other, and an object to be conveyed on the conveying path to a liquid supply device for applying a liquid, e Bei a drainage device for discharging from the processing tank foreign matter caused by rubbing of the article to be treated together with the liquid, a portion of the object in at least one position of the conveying path A branch path with a drop portion formed at the tip in the conveying direction of the workpiece is provided, and the workpiece that has passed through the branch path falls from the drop portion and joins the workpiece that does not pass through the branch path. When the left and right in the direction of travel are swapped Are those that are allowed to three-dimensionally cross the branch passage so, there as it can be moved along the transport path of the object to be processed by vibrating the processing tank in the vertical direction and the circumferential direction, continuous processing object Can be transported in an automated manner. Since the workpieces rub against each other while the workpieces are transported in this way, the burrs of the workpieces are removed by this rubbing, and continuous processing can be performed without using abrasive grains, There is an advantage that the problems of the conventional apparatus are solved. Moreover, since the liquid is applied to the object to be processed, the fine powder generated by rubbing the object to be processed is removed by the liquid, and a beautiful finish can be expected, and the fine powder can be recovered together with the liquid and easily removed. Have advantages. Furthermore, the workpieces are once diverted and then merged, and at the time of merging, the left and right relations of the two are interchanged. There is an advantage that the effect of deburring by greatly increasing and rubbing the objects to be processed can be further promoted.
[0018]
According to the second aspect of the present invention, in the case where a part of the transport path is formed with a through hole for discharging the liquid supplied from the liquid supply device from the transport path, the liquid passes through the through hole provided in the transport path. Since it is discharged, there is an advantage that the liquid containing the fine powder does not flow down the conveyance path and the fine powder does not adhere to another object to be processed.
As in the third aspect of the present invention, in the case where a drop part is formed in which at least one part of the conveyance path has an upper and lower step and the object to be conveyed conveyed on the conveyance path falls, the object to be treated falls. Since the object to be processed rolls by dropping at the part, there is an advantage that the objects to be processed are not transported while being overlapped, and almost the entire surfaces of the objects to be processed can be rubbed together.
[0020]
When the liquid contains a rust preventive agent as in the fourth aspect of the invention, there is an advantage that rust prevention treatment can be performed simultaneously with deburring and work efficiency is further improved.
As in the invention of claim 5 , when the liquid is a foamable substance, the fine powder adheres to the foam and floats up from the object to be processed, so that the removal of the fine powder is facilitated, and the foam becomes a cushion and becomes covered. There is an advantage that the collision between the processed objects is alleviated and the processed object can be prevented from being damaged.
[Brief description of the drawings]
FIG. 1 is a partially broken front view showing an embodiment of the present invention.
FIG. 2 is a partially broken plan view of the above.
FIGS. 3A and 3B show a main part of the same, in which FIG. 3A is a perspective view and FIG. 3B is a cross-sectional view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Processing tank 2 Excitation apparatus 3 Conveyance path 5 Drop part 6 Branch path 7 Drop part 11 Liquid supply apparatus 12 Through-hole 13 Discharge pipe

Claims (5)

A cylindrical processing tank arranged with the center line as a vertical direction, a conveyance path fixed to the processing tank and inclined along the peripheral wall of the processing tank, and a workpiece to be processed as a loose part is placed thereon, and the processing object An excitation device that applies vibrations in the vertical direction and circumferential direction to the processing tank so as to move along the conveyance path while rubbing each other, and a liquid supply device that applies liquid to the object to be processed conveyed along the conveyance path And a drainage device that discharges foreign matter generated by rubbing of the processing object together with the liquid from the processing tank , and a part of the processing object is diverted to at least one place of the conveyance path and the processing object A branch path with a drop part is provided at the tip in the transport direction, and when the workpiece that has passed through the branch path falls from the drop part and joins with the workpiece that does not pass through the branch path, Branch the road so that the left and right are interchanged Deburring device, characterized in that it is a body crossed.   2. The deburring device according to claim 1, wherein a through hole for discharging the liquid supplied from the liquid supply device from the conveyance path is formed in a part of the conveyance path.   The deburring device according to claim 1 or 2, wherein a drop part having an upper and lower step is formed in at least one part of the transport path, and a workpiece to be transported along the transport path falls. The deburring apparatus according to claim 1, wherein the liquid contains a rust preventive agent . Deburring equipment according to any one of claims 1 to 3, wherein the liquid is a foaming material.

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