JP2001353654A - Workpiece polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a workpiece polishing device capable of polishing a workpiece uniformly along the whole surface even when it is large or when it has a relatively complicated form without large-sizing a structure or requiring large power. SOLUTION: This workpiece polishing device 1 comprises an oscillation mechanism 10 comprising a rotary shaft 6 on which a workpiece is installed at one end, a rotation means 7 to rotate the rotary shaft 6 around its axial center, a moving means 8 to move the rotary shaft 6, and an oscillation means 9 to oscillate the rotary shaft 6 so that it is movable along an arc-shaped track on one end side, a tank 3, and a control part to control an oscillation mechanism. The workpiece is inserted into polishing medium in the tank 3, it is rotated around the axial center to be movable along an arc-shaped track till it is inclined to a horizontal surface by this movement, and it is moved along a straight track while keeping this inclination, so it is controlled to be polished. Moving passages of the workpiece in the polishing medium can be controlled by the control part as desired.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work polishing apparatus for polishing a metal work such as an aluminum wheel or a muffler of a car using abrasive particles.

[0002]

2. Description of the Related Art As a work polishing apparatus of this type, a work fixed at the tip of a rotating shaft rotated by a rotating means is inserted into a polishing medium containing abrasive particles and a liquid contained in a tank. It is known that the polishing medium is caused to flow by rotating a tank, and the workpiece is polished by friction between the workpiece and abrasive particles. In such an apparatus, since the tank itself must be rotated, the apparatus itself becomes large, and a large power is required. Therefore, the apparatus is not suitable for a large work that requires an active flow of the polishing medium. A technique for solving this problem and moving the work itself without rotating the tank is disclosed in JP-A-11-21666.
0. The apparatus disclosed in this publication includes a rotating shaft for inserting a workpiece mounted on the tip into a polishing medium contained in a tank, and a rotary drive for rotating the rotating shaft about its axis. Department and
The rotating shaft is constituted by a vibrating means that vibrates in a circular vibration or in a front-back, left-right direction along a plane including the axis of the rotating shaft. In this apparatus, instead of rotating the tank, the work is polished by vibrating the work in the abrasive particles via a rotating shaft. Such an apparatus has an effect that the configuration is small and the electric power is small as compared with rotating the tank.

[0003]

However, according to this conventional technique, in the case of a work in which not only the outer surface but also the inner peripheral surface must be polished, such as a wheel of a tire, the inner peripheral surface is not used. In contrast, the abrasive particles cannot contact and flow with a uniform distribution. For this reason,
In this technique, there is a difference in polishing between the outer surface and the inner surface of the work, and there is a problem that the polishing is uneven on the inner surface. Such a problem is caused, for example, in the case of a work in which a recess is formed on the outer surface, the inner surface of the recess has a difference in polishing and unevenness with respect to the outer surface. Therefore, this conventional technique is not suitable for polishing a large work or a work having a relatively complicated shape.

Accordingly, an object of the present invention is to provide a large-sized work or a work having a relatively complicated shape over the entire surface without increasing the size of the structure and requiring large power. An object of the present invention is to provide a workpiece polishing apparatus capable of performing uniform polishing.

Another object of the present invention is to provide a workpiece polishing apparatus capable of arbitrarily controlling a movement path of a workpiece in a polishing medium.

Another object of the present invention is to provide an apparatus for polishing a work which can be uniformly polished over the entire surface according to the shape of the work.

[0007]

Means for Solving the Problems In order to solve the above problems and achieve the object, a workpiece polishing apparatus of the present invention is configured as follows.

The work polishing apparatus of the present invention comprises a tank in which a polishing medium composed of a large number of abrasive particles and a liquid is accommodated, a rotating shaft on one end of which a work is mounted, and a rotating shaft for rotating the rotating shaft. Rotating means for rotating about the axis of the shaft, moving means for moving the rotating shaft along the axis, and swinging the rotating shaft such that one end of the rotating shaft can move along an arc orbit. The swinging means and the work are moved along an arc trajectory in the polishing medium while being rotated about the axis, and the movement is made to be inclined with respect to a horizontal plane. It is moved in a linear orbit while holding it, these movements are repeated,
The rotating means so as to be polished by the polishing medium,
And a control unit for driving and controlling the rotating shaft by the moving unit and the swinging unit.

[0009] With this configuration, the work polishing apparatus does not increase the size of the structure and does not require a large amount of power due to polishing by moving the work itself. Even if it is a work, it can be polished uniformly over the entire surface.

[0010] The apparatus for polishing a workpiece of the present invention further includes a swing mechanism moving means for moving the rotating shaft, the rotating means, the moving means, and the swing means in a direction intersecting the axis. The control section can control the driving of the swing mechanism moving means.

With this configuration, the degree of freedom of movement of the work in the polishing medium increases. Therefore, while the workpiece moves actively, the polishing medium can also flow actively. For this reason, this work polishing apparatus can polish uniformly over the entire surface even if the work is relatively complicated in shape,
The movement path of the work in the polishing medium can be further arbitrarily set.

A workpiece polishing apparatus according to the present invention is characterized in that a rotating shaft to which the workpiece is attached at one end side, a rotating means for rotating the rotating shaft about the axis of the rotating shaft, and the rotating shaft, Moving means for moving in a direction along the center and / or in a direction perpendicular to the axis, and rocking means for rocking the rotating shaft such that one end of the rotating shaft is movable along an arc-shaped orbit; And a control unit for controlling the driving of the oscillating mechanism, and a tank in which a polishing medium having a large number of abrasive particles is accommodated, and The part includes an operation of rotating the work about the axis, an operation of moving the work in a direction along the axis, and an operation of moving the work in a direction intersecting the axis. And the workpiece is moved forward by the swinging means. Selecting one or more actions from a group of actions having an action to be moved along an arc trajectory, and selecting the selected single action or a combination of the selected actions in the polishing media. The driving of the swing mechanism is controlled so that the work is performed and polished by the polishing medium.

[0013] With this configuration, the work polishing apparatus does not increase the size of the structure and does not require a large amount of power due to polishing by moving the work itself. Even if it is a work, it can be polished uniformly over the entire surface. Further, in this work polishing apparatus, the operation of the work by driving the swinging mechanism can be arbitrarily selected from the operation groups, so that the movement path of the work in the polishing medium is arbitrarily controlled by the control of the control unit. I can do it.

The control unit may combine the operations of the operation groups to perform an operation of rotating the work along the axis of the rotating shaft, and to move the work along an arc trajectory, The swing mechanism can be controlled so that the work performs an operation of making the work inclined with respect to, and an operation of moving the work on a linear trajectory while maintaining the inclination.

With this configuration, the work polishing apparatus can uniformly contact the polishing medium over the entire surface of the work, and even if the work has a relatively complicated shape,
Polishing can be uniform over the entire surface.

Further, the apparatus further comprises a swing mechanism moving means for moving the swing mechanism in a direction intersecting the axis, and the control unit can control the driving of the swing mechanism moving means.

According to this configuration, a new operation is added to the operation group because the control unit controls the driving of the swinging mechanism moving means, so that the degree of freedom in moving the work is increased.
Therefore, while the workpiece moves actively, the polishing medium can also flow actively. For this reason, this work polishing apparatus can uniformly polish the entire surface even if the work has a relatively complicated shape, and further arbitrarily controls the movement path of the work in the polishing medium. obtain.

[0018] Further, the control unit can control the swing mechanism moving means to be driven when the dimension of the work in the longitudinal direction is larger than the dimension in the direction orthogonal to the longitudinal direction.

With this configuration, the control unit controls the swing mechanism and the swing mechanism moving means in accordance with the shape of the work to be polished, and thus more arbitrarily controls the movement path of the work in the polishing medium. I can do it.

Further, the tank may have a plurality of elastic members for supporting the tank so as to vibrate, and vibrating means for vibrating the tank.

With this configuration, the polishing apparatus for a work allows the polishing medium in the tank to actively flow, and
And it becomes possible to polish a work uniformly.

Further, the tank may be configured such that the bottom is curved.

With this configuration, the polishing medium in the tank can flow more actively, and the work can be uniformly polished in a short time.

Further, the tank has an inner tank provided with a plurality of holes through which polishing chips between the polishing medium and the work pass without passing abrasive particles in the tank, and the inner tank is accommodated therein. And an outer tank provided at the bottom with a discharge port for discharging the polishing residue that has passed through the plurality of holes.

With this configuration, the work polishing apparatus can separate the polishing debris and the abrasive particles from the polishing medium in the tank after the completion of the work polishing, and discharge the polishing debris to the discharge port. The abrasive particles in the tank can be effectively separated from the polishing residue.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A work polishing apparatus according to a first embodiment of the present invention will be described below. First, the configuration of a workpiece polishing apparatus 1 according to the present embodiment will be described with reference to FIGS.
This will be described with reference to FIG. FIG. 1 is a schematic partially cutaway side view of a work polishing apparatus 1, and FIG. 2A is an enlarged cross-sectional view of a pivot portion of a rotating shaft 6 of the work polishing apparatus of FIG. 1.
FIGS. 3B, 3A, and 3B are side views showing modified examples of the rotating shaft 6. FIG. 4 is a partially exploded perspective view of the workpiece polishing apparatus 1 of FIG.

The work polishing apparatus 1 includes a tank 3 in which a polishing medium 2 having a large number of polishing particles 21 and a liquid is stored. Further, a polishing apparatus 1 for this work
A rotating shaft 6 having a work mounting portion 5 for attaching the work 4 at one end, a rotating means 7 for rotating (rotating) the rotating shaft 6 about this axis, and the rotating shaft 6
Swinging mechanism 1 having a moving means 8 for moving the rotating shaft 6 along the axis, and a swinging means 9 for swinging the rotating shaft 6 so that one end of the rotating shaft 6 can move along the circular orbit.
0 is provided. In addition, this work polishing apparatus 1
A control unit (not shown) for controlling the driving of the swing mechanism 10
Is provided.

The work polishing apparatus 1 moves the swinging mechanism 10 so that the work 4 attached to the rotating shaft 6 can be moved in and out of the tank 3.
1 is further provided.

The tank 3 has an inner tank 31 and an outer tank 32 having the same upper surface and an opening, respectively, and a water supply port 36 provided near the opening to supply liquid (water) into the tank 3. Have. In this inner tank 31,
The large number of abrasive particles 21 and the water supplied from the water supply port 36 are accommodated therein, and the polishing medium 2 is formed therein. The water preferably contains a surfactant, but is not limited to the components contained in the water.

The inner tank 31 has a plurality of holes 33 at a bottom portion thereof through which polishing residue, that is, sludge, by water contained therein and abrasion powder of the work 4 and the abrasive particles 21 generated by the polishing can be passed. . Each hole 33 is provided with the abrasive particles 21.
Are formed so as not to pass through. For example, when a conical polishing medium having a bottom surface diameter of about 7 mm is used, the hole is a circular hole having a diameter of about 5 mm. However, the size of each hole 33 is an example and is not limited.
Further, these holes 33 are preferably arranged at equal intervals on the bottom, but are not limited to this arrangement. In addition, these holes 33 may be formed in a portion other than the bottom of the inner tank 31 or over the entire surface. In the present embodiment, the bottom surface of the inner tank 31 is curved, but is not limited to this shape.

The outer tank 32 houses the inner tank 31 at a predetermined interval from the bottom surface.
At the bottom of the outer tank 32, there is provided a discharge port 34 for discharging the liquid and the polishing debris that have passed through the inner tank 31. For this purpose, the bottom surface is configured to prevent the flow of the liquid and the polishing debris to the discharge port 34. It is inclined toward the outlet 34 for better quality. The bottom of the outer tank 32 has a shower 35 for washing away liquid and abrasion powder on the side opposite to the discharge port 34, that is, on the upper part of the inclined surface.

The swing mechanism 10 will be described below with reference to FIG. First, the rotation shaft 6 of the swing mechanism 10 will be described with reference to FIGS.

The rotating shaft 6 of the swinging mechanism 10 is pivotally supported by a rotating shaft main body 61 extending in the vertical direction and a pivot 61a (FIG. 2A) provided at one end of the rotating shaft main body 61. And a work mounting portion 5 for mounting the work 4 and selectively fixing the work mounting portion 5 to a work mounting position rotated by 90 degrees with respect to the axis and a work polishing position arranged along the axis. It has a fixing means 63 and a gear 62 fixed to the other end of the rotating shaft main body 61 and to which power is transmitted from the rotating means 7.

The work mounting part 5 has a work 4
Are attached by known fixing means such as bolting. As shown in FIG. 2 (a), the work mounting portion 5 is moved by a hinge-shaped pivot portion (pivot pin) 61a at one end of the rotating shaft main body 61 with respect to the axis in a plane along the paper surface. The pivot shaft 61 is pivotally supported so that it can rotate at least 90 degrees. In addition, this mounting portion 5
A fixing means (lock cylinder) 63 slidable along the rotary shaft main body 61 is provided in a pivotal support portion 61 a between the rotary shaft main body 61 and the rotary shaft main body 61. The lock cylinder 63 can be clicked on the rotating shaft main body 61 at the lower position shown in FIG.
It can be moved upward as indicated by the arrow. As shown in FIG. 2A, when the lock cylinder 63 is moved to the lower position, the mounting portion 5 (and thus the work attached thereto) is aligned with the axis of the rotary shaft main body 61 (workpiece). (Polishing position). On the other hand, with the lock cylinder 63 moved upward, the work mounting part 5 is
After a predetermined angle, for example, 90 degrees,
By moving the lock cylinder 63 downward and bringing the lower end of the lock cylinder 63 into contact with the end of the mounting portion 5 on the pivotally supported side, the mounting member 5 is maintained at this position (work mounting position). . At this work mounting position, the mounting member extends substantially horizontally, so that the work mounting operation (and the removing operation) can be easily performed. The pivoting and fixing of the work mounting portion 5 to the rotating shaft main body 61 is performed by a pivoting pin 61a and a lock cylinder 63, but other known pivoting means and fixing means may be used. It is not limited.

In the present embodiment, the rotation shaft 6
Has only one pivotal support 61a and one fixing means 63, but it is also possible to provide a plurality of these and make the rotation axis multi-joint. For example, as shown in FIG.
The rotating shaft 6 is vertically supported by a rotating shaft main body 61, and at a lower end portion of the rotating shaft main body by a pivot support 61 a by the same means as described above.
Rotating shaft main body 6 fixed in a state of being rotated 0 degrees
1 'and a work mounting portion 5 which is pivotally supported by the pivot portion 61a at the end opposite to the pivot portion 61a of the rotating shaft main body 61' by the same means as described above, and which is vertically fixed by the lock cylinder 63. And With the above configuration, when the work 4 is mounted on the work mounting part 5, the work mounting part 5 supports the work 4 from below, so that even when the work 4 is heavy, the work mounting work can be easily performed. It can be carried out.

Next, the rotating means 7 of the swing mechanism 10 will be described.

In this embodiment, the rotating means 7 comprises a motor 71 for applying a rotating force to the rotating shaft 6 and a free end of a rotating shaft 72 of the motor, and thus a gear 62 of the rotating shaft 6. And a gear 73 connected to transmit the rotational force. Thus, the rotating means 7 includes the gear 7
The rotation force is transmitted to the gear 62 by 3 and the rotation shaft 6 is rotated about its own axis. In this embodiment, these gears 62 and 73 are constituted by other known force transmission means such as transmission of force by a belt, if the rotation of the motor 71 can be transmitted to the rotating shaft 6. It does not matter, the gears 62 and 73 are eliminated,
72 may be formed integrally. But,
To facilitate the maintenance of the device,
Preferably, 2 is separate.

In this embodiment, the rotating shaft 6 is
Although there is only one, as shown in FIG.
A plurality of gears 73 can be provided so as to be connected to the gear 73 of the rotating means 7 via a plurality of (two in this case) gears 73 ′ and a plurality of gears 62, or as shown in FIG. Work 4 attached to the work mounting part 5
A work attachment portion 5 'is further connected to the lower part of the work, and a work 4' is attached to the work attachment portion 5 '.
It is also possible to have two work mounting portions in the vertical direction of the rotating shaft 6. As described above, the rotating shaft 6 is not limited in number, shape, or number of works to be attached.

The moving means 8 and the oscillating means 9 of the oscillating mechanism 10 will be described below with reference to FIG. First, the swing mechanism 1
The rotation means 8 is a rotation means support base 81 rotatably supporting the rotating shaft 6 and also supporting a motor 71 of the rotation means 7, and a lower end is fixed to the rotation means support base 81. A substantially L-shaped moving cylinder connecting portion 82 having an upper end fixed to the tip of the piston rod 83a of the moving cylinder 83;
2 comprises a moving cylinder 83 for moving the rotating means support base 81 through the support member 2 and a guide portion 84 for guiding the rotating means support base 81.

The rotating means support base 81 has a base 81a extending in the vertical direction, and one surface (front surface) of the base 81a.
Motor support piece 81b extending in the vertical direction with respect to
And the base 81a in parallel with the motor support piece 81b.
And a rotation shaft support piece 81c extending from the rotation shaft support piece 81c.
Holes 81d and 81e are formed in the motor support piece 81b and the rotating shaft support piece 81c, respectively.

The motor 71 of the rotating means 7 is fixed on the motor support piece 81b, and the rotating shaft 72 of the motor 71 extends downward through the hole 81d.

The rotating shaft supporting piece 81c is formed by inserting the rotating shaft 6 into the hole 81.
The support provided in e is rotatable about the axis.

The motor support piece 81b and the rotary shaft support piece 8
1c is spaced apart from the gear 73c of the rotating means 7 in the space between them as described above.
And the gear 62 of the rotating shaft 6 are engaged.

The structure of the rotating means support base 81 is merely an example. If the engagement between the rotating shafts 6 and 72 is made by another known connection method capable of transmitting a force as described above. The hole 81 can be changed in accordance with the configuration, and even when the two rotating shafts 6 and 72 are formed integrally,
d and 81e are arranged concentrically, and it can correspond to the structure which does not impair the transmission of the rotational force of the rotating means 7 to the rotating shaft 6.

The other surface (back surface) of the base 81a is connected to a guide portion 84. The guide portion 84 includes a base portion 81
a sliding parts 84 fixed to the back surface
a, and a pair of rails 84b that slidably support these sliding portions 84a. In addition, the base 81a
, The lower end of the moving cylinder connecting portion 82 is fixed. The other end of the moving cylinder connecting portion 82 is fixed to a rod head 83b at the upper end of a piston rod 83a of the moving cylinder 83. The piston rod 83a and the rod head 83b form a moving cylinder 83 together with the moving cylinder main body 83c. The moving cylinder 83 is provided with the moving cylinder body 83.
c, it is fixed to the back surface of the guide support base 92.

The oscillating means 9 of the oscillating mechanism 10 includes a guide support 92 for supporting the guide portion 84 and the movable cylinder 83 of the moving means 8, and an oscillating cylinder for oscillating the guide support 92. 93 and a swing means fixing portion 94 for fixing the guide support base 92 and the swing cylinder 93.

The guide support 92 is formed by a rectangular plate extending in the vertical direction. A pair of rails 84b is provided on the surface of the guide support base 92 along the longitudinal direction of the rotary shaft 6. The moving cylinder 8 is provided on the back of the guide support base 92 at the upper part thereof.
3 is fixed, and the piston rod 9 of the swing cylinder 93 is fixed.
A second pivot 92a, which pivotally supports a first pivot 93b provided at the end of 3a, is protruded, and at the lower part, to a third pivot 94a of the swing means fixing portion 94. A fourth pivot portion 92b to be pivotally protruded is provided.

The oscillating cylinder 93 includes the piston rod 9
3a is moved along its own axis. The cylinder body 93c of the oscillating cylinder 93 is attached to the oscillating means fixing portion 9
It is pivotally supported by a fifth pivot 93d fixed to 4.

The rocking means fixing portion 94 includes a pair of columns 94b.
And are supported vertically separated from each other between the columns,
It is formed in a ladder shape by three horizontally extending horizontal plates 94c, 94d and 94e. The third pivot 94a protrudes from the surface of the lower horizontal plate 94c, and the fifth pivot 93d of the swing cylinder 93 is fixed to the upper surface of the central horizontal plate 94d. . On both side surfaces of the swinging means fixing portion 94, an in-and-out mechanism 1 described in detail below, respectively.
A roller 94f that engages with one of the rails 111b is provided.

Here, referring again to FIG.
1 will be described. The input / output mechanism 11 includes a guide section 111 for guiding the swing mechanism 10 and an input / output cylinder 112 for vertically moving the swing mechanism 10 along the guide section 111.
And an input / output mechanism support portion 113 that supports the guide portion 111 and the input / output cylinder 112 above.

The guide portions 111 are fixed to the input / output mechanism support portions 113 provided outside the tank 3, respectively, and have a pair of vertically extending columns 111a. These columns 111a each have rails 111b provided on the surfaces facing each other along the longitudinal direction. Each rail 11
Reference numeral 1b denotes the opposite surface (side surface on the tank 3 side), which is engaged with each pair of rollers 94f of the rocking means fixing portion 94. As a result, the swing means fixing portion 94 is
1b guides it to be movable in the vertical direction.

The lower end of the input / output cylinder 112 is fixed to the input / output mechanism support portion 113, and extends vertically upward. And the input / output cylinder 112
The piston rod 112b of the
Are fixed to the other ends of a pair of upper and lower swinging mechanism support plates 112a, each having one end fixed and extending horizontally. Specifically, the upper swing mechanism support plate 11
One end of each of 2a and the lower swing mechanism support plate 112a 'is fixed to the upper horizontal plate 94e and the center horizontal plate 94d of the swing means fixing portion 94, respectively. As a result, the swinging mechanism 10 is guided by the guide 111
Along the vertical direction by the input / output cylinder 112.

The oscillating mechanism support plates 112a and 112a 'are provided on the piston rod 112b. The oscillating mechanism 10 is moved along the guide portion 111 with the piston movement of the input / output cylinder 112. If possible, only the swing mechanism support plate 112a may be used, and the number is not limited. Further, the swing mechanism support plate 112a may be formed integrally with the piston rod 112b. That is, the swing mechanism support plate 112
“a” is not limited in shape, size, and connection position with the swing mechanism 10 as long as the swing mechanism 10 can be moved along the guide portion 111.

The entrance / exit mechanism support portion 113 is provided in a U-shape along the outer periphery at the lower portion of the tank 3, and the lower end of each support 111 a of the guide portion 111 is fixed on the side of the tank. The lower end of the input / output cylinder 112 is fixed at the center on the back side of the tank. If the input / output mechanism support portion 113 can fix the guide portion 111 and the input / output cylinder 112, it can also fix the guide portion 111 and the portion other than the ends of the input / output cylinder 112, and is formed integrally with the tank 3, The guide portion 111 and the input / output cylinder 112 can be fixed, and the fixing position and shape are not limited.

The control section controls the rotating means 7, the moving means 8 and the oscillating means 9 of the oscillating mechanism 10 so that desired driving is performed. This control may use any known means such as an electronic circuit or a computer. The control of the swing mechanism 10 by the control unit will be described in detail below.

Here, the operation of the work polishing apparatus will be described.

FIG. 5 is a schematic partially cutaway side view showing a state before the polishing of the workpiece polishing apparatus is started. FIG.
FIG. 4 is a schematic partially cutaway side view showing a state during the polishing operation of the workpiece polishing apparatus.

As shown in FIG. 5, in the work polishing apparatus 1 before the start of polishing, the swing mechanism 10 includes the input / output mechanism 11
Is arranged in an initial setting arrangement above the tank.
At this time, the tank 3 is filled with a large number of abrasive particles 21 and water is injected from the water supply port 36 at the opening.
A polishing medium 2 is made. This polishing medium 2 has an inner tank 3
Although it is inserted up to about 80% of the height from the bottom surface of 1, the amount is not limited as long as desired polishing can be performed.

In the above-mentioned initial arrangement, the piston rod 112b is extended to the uppermost position by the input / output cylinder 112, and accordingly, the rocking means fixing portion is moved through the rocking mechanism support plates 112a and 112a '. 94 is also at the top. At this time, the oscillating cylinder 93 of the oscillating mechanism 10 is in a state where the piston rod 93a is retracted, the guide support base 92 is positioned vertically, and thus the rotating means support base 81 and the rotating shaft 6 are also It is located vertically.

In this state, the work 4 to be polished is mounted on the piston mounting portion 5 which is rotated to the work mounting position (indicated by a broken line in FIG. 5). Next, the work mounting portion 5 is rotated to the work polishing position and locked (indicated by a solid line).

After the mounting of the work 4 is completed as described above, the rotation shaft 6 is vertically moved downward through the swing mechanism 10 by operating the loading / unloading cylinder 112 of the loading / unloading mechanism 11. As a result, the work 4 is moved to a polishing start position inserted into the polishing medium 2. Before, during, and after the start of the movement to the polishing start position, the rotation unit 7 starts operating under the control of the control unit, and the work 4 is rotated by the rotation shaft 6. The polishing start position is indicated by a two-dot chain line in FIG. The rotation of the work 4 by the rotating means 7 is continued until the polishing operation is completed.

Next, the moving cylinder 83 and the oscillating cylinder 93 of the oscillating mechanism 10 are controlled by the control unit.
Is operated, the work 4 attached to the end of the rotating shaft 6 is moved, and a polishing operation is performed. In this polishing operation, the control unit controls the swing mechanism 10 so that one or more predetermined operations are performed on the work. In other words, the control unit controls the work in the polishing medium to move along one or more predetermined paths. In the present embodiment, control is performed such that the work 4 performs the first, second, and third operations. For this reason, in order to cause the workpiece 4 to perform the first, second, and third operations, the control unit performs one operation from an operation group, which is a group indicating the operable operations of the swing mechanism 10. One or a combination of a plurality of operations is selected, and the swing mechanism 10 is driven so as to perform the selected operation. In the present embodiment, the operation group includes a rotation operation of the work by the rotation unit 7, a movement operation of the work 4 in a direction along the axis of the movement unit by the movement unit, and a movement operation of the rotation shaft 6 by the swing unit 9. The work 4 attached to one end has a swinging motion of the work that moves along an arc trajectory.

Hereinafter, the first, second, and third operations of the work performed by the swing mechanism 10 will be described with reference to FIG. At this polishing start position, the swing mechanism 1
The moving cylinder 83 of 0 is a state in which the piston rod 83a is extended to the maximum, and the swing cylinder 93 is
This is a state where the piston rod 93a is retracted, which is the same as the state shown in FIG.

The first operation is an operation (moving path) of the work 4 which is started from the polishing start position, continues to rotate, and swings along an elliptical arc-shaped orbit. For this reason, the control unit selects the rotation operation and the combination of the movement operation and the swing operation from the operation group, and controls the swing mechanism 10 so as to perform the above operation.
Control.

In order to perform the first operation, the control unit comprises:
By continuing the rotation operation by the rotation means 7, the work 4 is caused to perform the rotation operation. And the control unit includes:
In order to perform the operation of swinging the work 4 along the elliptical arc-shaped orbit, the piston rod 83a of the moving cylinder 83 is driven to contract along its own axis.
By this driving, the motor support piece 81b is guided along the rail 84b of the guide portion 84 and is moved along the axis of the moving cylinder 83, and thus the rotary shaft 6 is moved along its own axis. . At the same time, the control unit drives the swing cylinder 93 to extend the piston rod 93a. As a result, the guide support base 92 pivotally supported by the swinging means fixing portion 94 rotates with the rotating means 7 counterclockwise around the axes of the third and fourth pivoting portions 92b and 94a. Is done. Therefore, the control unit:
One end of the rotating shaft 6, that is, the work 4, is swung along an arc-shaped orbit about the axes of the third and fourth pivot portions 92b and 94a. That is, while the work 4 is being rotated by the rotating means, the work cylinder 83 and the swing cylinder 93 are driven to move along the axis of the rotating shaft and swing along the circular orbit to form an elliptical arc. Rocking along the orbit of. Thus, the first operation is performed.
In other words, the first operation is such that the workpiece 4 gradually inclines the axes of the third and fourth pivot portions 92b and 94a counterclockwise about the center with respect to the horizontal plane. This is a movement that is moved downward. The trajectory of the workpiece 4 is schematically shown in FIG. 6 by an arrow denoted by reference numeral 120a. By moving the work 4 as described above, the polishing medium 2 actively flows, and the abrasive particles entering the concave portion of the work 4 during polishing of the abrasive particles are prevented from staying in the concave portion, and are uniformly distributed over the entire work. Polishing can be performed.

In the first operation, the workpiece 4 is moved by moving the moving cylinder 83 to the lowest position,
3 is performed until it is moved to the maximum extended arc movement end point position (indicated by a solid line). At this arc movement end point position, the work 4 is in a state of being inclined to the maximum with respect to the horizontal plane due to the movement. When the workpiece 4 moves to the arc end point, the second operation is started.

The second operation is an operation of a work in which the rotation operation is continued and the work is moved in a linear trajectory while maintaining the inclination with respect to the horizontal plane. For this reason, the control unit selects the rotation operation and the movement operation from the operation groups, and controls the swing mechanism 10 to perform the above operation.
Control.

For performing the second operation, the control unit comprises:
By continuing the rotation operation by the rotation means 7, the work 4 is caused to perform the rotation operation. And the control unit includes:
The piston rod 83a of the moving cylinder 83 is driven so as to extend along its own axis in order to move the work in a linear trajectory while maintaining the inclination with respect to the horizontal plane. For this reason, the motor support piece 81b is moved along the rail 84b of the guide portion 84 to the side opposite to that during the first operation. Thus, the rotating shaft 6 is moved upward along its own axis. Thus, the second operation drives only the moving cylinder. Accordingly, a second operation is performed in which the work 4 is linearly moved upward along the rail 84b while maintaining a state of being inclined with respect to the horizontal plane at the arc movement end point position. The trajectory of the workpiece 4 is schematically shown in FIG. 6 by an arrow denoted by reference numeral 120b. By moving the work 4 as described above, the polishing medium 2 flows more actively, and the abrasive particles that have entered the concave portion of the work 4 during polishing of the abrasive particles are prevented from remaining in the concave portion. Uniform polishing can be performed.

This second operation is performed until the movable cylinder 83 drives the piston rod 83a to the highest position. As described above, when the piston rod 83a is driven to the uppermost position, the operation of the moving cylinder 83 stops, and then the third operation is performed.

The third operation is an operation of the work 4 returned to the arrangement at the polishing start position. For this reason, the control unit selects the swing operation from the operation group, and controls the swing mechanism 10 to perform the above operation.

To perform the third operation, the control unit
The swing cylinder 93 is driven so that the piston rod 93a of the swing cylinder 93 is contracted. Therefore,
The guide support base 92 pivotally supported by the swing means fixing portion 94 is rotated clockwise about the axis of the third and fourth pivot portions 92b and 94a with the rotating means 7, and thus, The work 4 is rotated by the rotation shaft 6. Thus, the third operation is performed, and the work 4 is returned to the polishing start position. The trajectory of the work 4 is schematically indicated by an arrow denoted by reference numeral 120c in FIG.

The first, second, and third operations are repeated until a predetermined polishing of the work is achieved.

As described above, the work 4 is moved by the swing mechanism 10.
By repeating a series of operations of the first, second, and third operations, a predetermined uniform polishing is performed even on a large work or a work having a complicated shape, and the corrosion resistance of the work is improved. And the surface hardness can be increased.

In the present embodiment, the movement of the work 4 in the first operation is in an elliptical arc trajectory, and this movement is caused by the driving pattern of the moving cylinder 83 and the oscillating cylinder 93. , It is possible to take a meandering trajectory, and it is also possible to move the workpiece 4 partially in an arc trajectory in the second operation. That is, the present invention is not limited as long as at least a part of the trajectory of the work 4 can be moved linearly in a state in which at least one part is inclined with respect to a horizontal plane while passing through an arc trajectory. Further, the first, second, and third operations by the rocking mechanism 10 are repeated so as to take the same trajectory each time, but if the desired polishing can be performed, a different trajectory is used each time. It is also possible. Although the rotating means 7 keeps rotating the rotating shaft 6 in the same direction, the rotating direction can be changed during polishing, and the rotating direction and the rotating speed are not limited. . In other words, the workpiece polishing apparatus 1 of the present embodiment can freely select the movement path of the work under the control of the control unit if the operation of the work can be realized by a combination of the operations of the operation group.

Next, when the above-mentioned polishing operation is completed, the swing mechanism 10 is moved from the polishing start position to the initial setting position by driving the loading / unloading cylinder 112, and the same operation as when the work is mounted is performed. The work mounting part 5 is operated by the method, and the work 4 is removed.

When the above-mentioned polishing operation is repeated and the polishing medium 2 is contaminated by the abrasion powder of the workpiece and the abrasive particles, water and abrasion powder are discharged, the abrasion particles of the abrasion powder are collected, and the tank is cleaned. Maintenance work is performed.
In this maintenance work, first, water and abrasion powder, that is, polishing debris are discharged. In this step, sewage and abrasion powder are removed by the holes 33 of the inner tank 31.
Then, the sewage and the abrasion powder flow through the bottom of the outer tank 32 to the discharge port 34 due to the inclination of the bottom of the outer tank 32. During discharge of the above-mentioned sewage and abrasion powder, the shower 35 starts jetting of water, and flows the sewage and the abrasion powder toward an outlet. As a result, the polishing scum, which is the sludge composed of the sewage and the abrasion powder, is smoothly discharged from the tank without accumulating at the bottom of the outer tank 32, and the abrasion scum is completely discharged. By this process,
The polishing medium 2 separates the polishing particles from the polishing particles 21 and discharges the polishing particles to an outlet. This allows the abrasive particles 21 to be efficiently separated into the inner tank without performing a manual operation for separating the abrasive particles 21 from the polishing residue, that is, without performing a complicated separation operation. Next, a step of recovering the abrasive particles 21 in the inner tank 31 is performed, and then a step of cleaning the tank 3 is performed. After the completion of this step, the outlet 34 is closed, Maintenance work is completed.

As described above, the maintenance work includes:
It can be done easily and in a short time.

Referring now to FIG. 7, a description will be given of a workpiece polishing apparatus 1 'according to a second embodiment of the present invention. Note that the same components as those of the workpiece polishing apparatus 1 according to the first embodiment of the present invention described above are indicated using the same reference numerals as those of the workpiece polishing apparatus 1, and details thereof are described. Detailed description is omitted.

The workpiece polishing apparatus 1 'according to the second embodiment is constituted by a flat base having both sides of the input / output mechanism support portion 113' projecting from the tank 3. I have. A plurality of elastic members 200 are provided between the entrance / exit mechanism support portion 113 'and the bottom of the tank 3 so as to have a predetermined interval and to support the tank 3 so as to be able to vibrate. A vibrating means 210, such as a vibrating motor, for vibrating the tank 3 in a desired direction (in this embodiment, in a vertical direction as indicated by an arrow) is provided on a side of the tank 3.

The elastic member 200 supports the bottom of the tank 3 and is formed of a spring capable of performing a desired elastic deformation, for example, a coil spring. The elastic member 200 is arranged at equal intervals on the input / output mechanism support portion 113 '. Is preferred. However, the elastic member 200 is not limited to the above arrangement, and may be another known spring such as a single leaf spring or the like, and may be another known spring such as rubber. It may be an elastic member.

The vibrating means 210 performs vibration during polishing of the work. This vibration is preferably performed in the moving direction of the work by the moving means 8, that is, in the vertical direction in FIG. 7, but is not limited. This allows
The polishing medium 2 in the tank 3 is actively flowed, and the work 4 can be uniformly polished in a short time.
The vibrating means 210 is provided on the side of the tank 3 in this embodiment, but the arrangement can be freely selected.

Referring to FIG. 8, a workpiece polishing apparatus 1 according to a third embodiment of the present invention will be described below. FIG.
FIG. 9 is a schematic partially cutaway side view of a workpiece polishing apparatus according to a third embodiment. The same components as those of the work polishing apparatus 1 according to the first and second embodiments of the present invention described above are indicated by using the same reference numerals as those of the work polishing apparatus 1. However, detailed description is omitted.

The work polishing apparatus 1 ″ further includes a swing mechanism moving means 12 for moving the swing mechanism 10, and the configuration of the tank 3 ″ conforms to the first and second embodiments. It is different from the work polishing apparatuses 1, 1 '. Accordingly, the input / output mechanism support portion 11 of the present embodiment
3 ″ is also different from that of the second embodiment. The entrance / exit mechanism support portion 113 ″ of the present embodiment projects from the bottom surface of the tank 3 in a direction orthogonal to the longitudinal direction of the bottom surface of the tank 3 and in the longitudinal direction. It is composed of a flat base. The entrance / exit mechanism support unit 113 ″ supports a swing mechanism moving unit 12, which will be described below, and supports the entrance / exit mechanism 11 ″ via the swing mechanism moving unit 12. Further, since the work polishing apparatus 1 "of the present embodiment is intended to polish the work 4" by dry polishing, the water supply port 36 is omitted. The work polishing apparatus 1 ″ according to the present embodiment may be configured so that a water supply port 36 is provided so that wet polishing can be performed.

The swing mechanism 10 of the work polishing apparatus 1 ″
It has the same configuration as that of the first and second embodiments, and is supported by an input / output mechanism 11 ″.
1 "is a guide portion 111" for guiding the swing mechanism 10, an input / output cylinder 112 "for vertically moving the swing mechanism 10 along the guide portion 111", and a guide portion 111 "and an input / output cylinder 112". Supporting input / output mechanism support unit 11
3 ". The entrance / exit mechanism 11" of the present embodiment.
Are supported by the swing mechanism moving means 12.

The oscillating mechanism moving means 12 fixes the oscillating mechanism 10 and supports the first moving section 121 for moving the oscillating mechanism 10 in a first direction indicated by an arrow X, and supports the first moving section 121. And a second moving unit 122 for moving the swing mechanism 10 via the first moving unit in a second direction orthogonal to the first direction.

The first moving section 121 will be described with reference to FIGS. 8 and 9A. FIG. 9A is a schematic top view of the first moving unit 121. FIG.

The first moving section 121 includes a base 121a for fixing the swing mechanism 10, a base guide section 121b for guiding the base so as to be movable along the first direction, and a first base. First directional cylinder 1 for providing a driving force to move in a direction
21c, and a first moving portion main body 121d that supports the base guide portion 121b and the first direction cylinder 121c.

The guide portion 111 "of the entry / exit mechanism 11" and the lower end of the entry / exit cylinder 112 "are fixed to the base 121a. In the present embodiment, the base 121a and
The guide portion 111 "and the input / output cylinder 112" are integrally formed, but may be formed by being manufactured separately and then combined.

The base guide section 121b has a pair of base guide rails 121b1 and a pair of base rollers 121b2, which cooperate to move the base 121a in the first direction. I will guide you along. A pair of base guide rails 121b
1 is a first moving unit main body 121d along the first direction.
It is arranged on the upper surface of. A pair of base rollers 121b2
Are engaged with a pair of base guide rails 121b1, and the upper surface is connected to the bottom of the base 121a.

The first direction cylinder 121c has a base connecting portion 121c2 connected to the base 121a at the tip of its own piston rod 121c1. The first direction cylinder 121c is arranged in a groove 121d1 provided on the upper surface of the first moving unit main body 121d. The first direction cylinder in the groove 121d1 is connected only to the base connecting portion 121c2 so that it can be connected to the base 121a.
1d1 extends to the bottom surface of the base 121a.

The second moving section 122 will be described with reference to FIGS. 8 and 9B. FIG. 9B is a schematic top view of the second moving unit 122.

The second moving part 122 is connected to the first moving part 121 and guides the first moving part 121 so as to be able to move in the second direction.
a, a second direction cylinder 122b for providing a driving force for moving the first moving section in the second direction, and a second moving section main body 122c for supporting the first moving section guide section 122a and the first direction cylinder 122b. And

The first moving section guide section 122a includes a pair of first
It has a moving part guide rail 122a1 and a pair of first moving part rollers 122a2, which cooperate to guide the first moving part 121 in the second direction. The pair of first moving unit guide rails 122a1 is disposed on the upper surface of the second moving unit main body 122c along the second direction. The pair of first moving unit rollers 122a2 is embedded in the bottom of the first moving unit main body 121d, and is configured to be able to engage with the pair of first moving unit guide rails 122a1.

The second direction cylinder 122b is provided at the tip of its own piston rod 122b1 with the first moving unit main body 12b.
A first moving unit connecting portion 122b2 connected to 1d is provided. The second direction cylinder 122b is disposed in a groove 122d1 provided on the upper surface of the second moving section main body 122c. Second direction cylinder 1 in groove 122d1
22b, only the first moving portion connecting portion 122c2 extends from the groove 122d1 to the bottom surface of the first moving portion main body 121d so that it can be connected to the first moving portion main body 121d.

The second moving section main body 121d is supported from below by a column 113a extending from the upper surface of the input / output mechanism supporting section 113 ″.

Since the work polishing apparatus 1 ″ has the swing mechanism moving means 12 as described above, the control section further includes the first operation group of the control section of the first embodiment.
The work 4 ″ is moved by the moving unit 121 via the swing mechanism 10.
In a first direction for moving the first direction, and a second moving unit 1
22 for moving the work 4 ″ in the second direction via the swing mechanism 10.

As in the second embodiment, the tank 3 ″ is provided between the bottom of itself and the entrance / exit mechanism support section 113 ″.
It has a predetermined interval and is supported by a plurality of elastic members 200 so as to be able to vibrate. At the bottom of the tank 3 ″, a vibration unit 210 such as a vibration motor that vibrates the tank 3 ″ is provided. Further, at the bottom of the tank 3 ", there are provided a hole 33" for discharging abrasive chips, which are dry abrasion powder, out of the tank and a discharge port 34 "for discharging the polishing chips passing through the hole 33". ing.
A dust collecting box 37 for collecting polishing chips is disposed at the discharge port 34 ". When the polishing chips accumulate in this dust collecting box, it can be pulled out of the tank 3" and the polishing chips can be easily discarded. It is configured as follows.

The elastic member 200 supports the bottom of the tank 3 ", and is formed of a spring capable of performing a desired elastic deformation, for example, a coil spring. The elastic member 200 is disposed at equal intervals on the input / output mechanism supporting portion 113". It is preferable, but not limited to this arrangement, and it may be another known spring such as one leaf spring or the like, and may be another known elastic material such as rubber or the like. It may be a member.

The vibrating means 210 vibrates the tank 3 ″ while polishing the work 4 ″. This vibration is preferably performed in the moving direction of the work by the moving means 8, that is, in the vertical direction in FIG. Thus, the polishing medium 2 in the tank 3 "is actively flowed, and the work 4" can be polished uniformly in a short time. In this embodiment, the vibration means 210
The arrangement is freely selectable. In this embodiment, the direction of the vibration by the vibrating means 210 is the vertical direction. However, the direction of the vibration is not limited as long as the flow of the polishing medium 2 can be activated. Further, the amplitude of the vibration by the vibration means 210 can be arbitrarily selected as long as the flow of the polishing medium 2 can be activated.

The bottom of the tank 3 ″ is curved. With this configuration, the abrasive particles actively flow due to the movement of the work by polishing the work and / or the vibration by the vibration means 210. Further, as in the configuration of the tank 3 "of the present embodiment, the opening of the tank 3" is narrowed, thereby preventing the actively flowed abrasive particles 21 from spilling out of the tank 3 ". Further, it is preferable that the inner wall of the tank 3 ″ is configured to have a curved surface because the abrasive particles 21 further promote active flow.

The operation of the workpiece polishing apparatus 1 ″ will be described below.

The work polishing apparatus 1 ″ has a first embodiment in which the work to be polished has substantially the same longitudinal dimension as a wheel of a car and the dimension in a direction perpendicular to the longitudinal direction. Similarly to the embodiment, the work 4 ″ mounted on one end side of the rotating shaft 6 is inserted into the polishing medium, and is arranged at the polishing start position. Then, the work polishing apparatus 1 ″ moves the work 4 ″ along an arc trajectory while rotating the work 4 ″ about the axis of the rotating shaft 6, and makes the work 4 ″ inclined with respect to the horizontal plane, and this inclination is maintained. The swinging mechanism 10 is controlled by the control unit so that the workpiece 4 ″ is polished by moving the workpiece 4 in a linear orbit while repeating this movement.

Further, when the longitudinal dimension of the workpiece polishing apparatus 1 ″ such as the workpiece 4 ″ shown in FIG. 8 is larger than the direction orthogonal to the longitudinal direction, the swing mechanism 10 Control other than (control of the control unit shown in the first embodiment) is performed by the control unit. The above control is
This will be described with reference to FIG. FIG. 10 is a diagram showing a movement route of the work 4 ″ in the tank 3 ″. The work 4 ″ shown by a solid line in FIG. 10 indicates the work 4 ″ arranged at the polishing start position.

In the above another control, the control section of the work polishing apparatus 1 ″ selects a rotation operation from the operation group, and the work 4 ″ arranged at the polishing start position is rotated by the rotation means 7 to remove the work 4 ″. Rotate about longitudinal centerline.
This rotation is continued until the polishing of the work 4 ″ is completed.

Subsequently, the control unit selects the first direction operation from the operation group, controls the swinging mechanism moving means 12, and moves the swinging mechanism 10, and thus the work 4 ″, to the side opposite to the arrow X. This movement is performed by the swing mechanism moving means 12.
Is performed by driving the first moving unit 121. When the work 4 ″ moves by a predetermined distance, the control unit ends the driving of the first moving unit 121, selects a second direction operation from the operation group, drives the second moving unit 122, and 4 "is moved in a direction orthogonal to the arrow X. Subsequently, the control unit stops driving the second moving unit,
The first operation is selected again, the driving of the first moving unit 121 is started, and the work 4 ″ is moved in the direction along the arrow X.
Subsequently, when the work 4 ″ moves a predetermined distance, the control unit terminates the driving of the first moving unit 121, selects the second operation, drives the second moving unit 122, and moves the work 4 ″ with the arrow X. And then return to the polishing start position again. The above control is continued until the polishing of the work 4 ″ is completed.

By controlling the oscillating mechanism 10 and the oscillating mechanism moving means 12 as described above, the work 4 ″ is polished without changing the angle of its own longitudinal center line. In other words, the work 4 ″ is polished. 4 ″ is polished by repeating parallel movement. Accordingly, the work 4 "does not move such that the multi-end draws an arc around its one end or a portion between the multi-end. Therefore, the work 4" has a longitudinal dimension orthogonal to the longitudinal direction. Even if it is larger than the direction, there is no difference in the moving distance and the speed between the one end and the multi-end, as in the case of moving in an arc, so that the entire surface can be polished uniformly.

In this embodiment, the work 4 ″
Is performed by driving the first moving unit 121 and the second moving unit 122 to move the first moving unit 121 and the second moving unit 122 in the direction along the arrow X and in the direction perpendicular to the arrow X. However, if desired polishing is achieved, It is also possible to perform polishing by driving only one of them. The polishing by the parallel movement of the work 4 ″ has been performed by moving the swing mechanism 10 in parallel by the swing mechanism moving means 12, but the moving means 8 is moved in a direction orthogonal to its own axis. As described above, the work polishing apparatus 1 ″ of the present embodiment can arbitrarily move the movement path of the work 4 ″ in the polishing medium under the control of the control unit. You can control.

The work polishing apparatus 1 according to the present invention
As described above, 1 ′ and 1 ″ can be arbitrarily controlled by the control unit. For example, the control unit is rotating or rotating the work about the axis of the rotation shaft 6. 11A, the swing mechanism 10 can be controlled so that the workpiece repeats the movement along the axis of the rotating shaft as shown in FIG. 11A, and as shown in FIG. 11B. In this way, the swing mechanism 10 can be controlled so that the work repeats the movement along the arc by the swing means, and as shown in FIG. It is also possible to control the swing mechanism 10 so that the movement along the heart and the movement along the arc are performed simultaneously and the movement is repeated.

For example, when the control section controls the swing mechanism 10 and the swing mechanism moving means 12 to be driven together, the work is moved to the rotating shaft 6 as shown in FIG. It is also possible to control so that the workpiece is repeatedly rotated in a direction orthogonal to the axis of the rotating shaft, with the workpiece being rotated about the axis. In addition, the work is rotated or not rotated about the axis of the rotating shaft 6, and as shown in FIG. 11E, the work is tilted with respect to the horizontal plane by the swinging means. It is also possible to control so that the movement is repeated in the direction orthogonal to the axis of the rotating shaft. Further, the work is rotated or not rotated about the axis of the rotation shaft 6, and the work is moved in the direction along the axis of the rotation shaft as shown in FIG. It is also possible to control so as to repeat the movement in the direction orthogonal to the axis of the rotating shaft while repeating, and as shown in FIG. 11 (g), the work is inclined with respect to the horizontal plane by the rocking means. It is also possible to control so that the workpiece is repeatedly moved in the direction along the axis of the rotation axis while maintaining the state, and is repeatedly moved in the direction perpendicular to the axis of the rotation axis. Further, the work is rotated about the axis of the rotary shaft 6 or is not rotated, and the work is repeatedly moved along the arc trajectory by the rocking means as shown in FIG. However, it is also possible to control so as to repeat the movement in the direction orthogonal to the axis of the rotation axis, and as shown in FIG. 11 (i), the work moves in the direction along the axis of the rotation axis. It is also possible to control so as to repeat the movement in the direction orthogonal to the axis of the rotating shaft while simultaneously performing the movement along the arc trajectory. Each of the above-mentioned movements can be performed continuously or intermittently.

Although some embodiments have been described in detail with reference to the drawings, the present invention is not limited to the above-described embodiments, and may be carried out without departing from the scope of the invention. Including all implementations.

Therefore, the following can be said about the workpiece polishing apparatus of the present invention.

(1) A tank in which a large number of abrasive particles and a liquid are contained in a tank, a rotating shaft on which a work is attached to one end, and the rotating shaft are centered on the rotating shaft. Rotating means for rotating as, moving means for moving the rotation axis along the axis, the rotation axis,
A swinging means for swinging one end of the workpiece so as to be movable along an arc trajectory; and
While being rotated about the axis, it is moved along an arc trajectory, is made to be inclined with respect to a horizontal plane by this movement, is moved in a linear trajectory while maintaining this inclination, and these movements are repeated, An apparatus for polishing a workpiece, comprising: a control unit configured to drive and control the rotating shaft by the rotating unit, the moving unit, and the swing unit so that the workpiece is polished by the polishing medium.

(2) The apparatus further comprises a rocking mechanism moving means for moving the rotating shaft, the rotating means, the moving means, and the rocking means in a direction intersecting with the axis. The work polishing apparatus according to (1), wherein the driving of the moving mechanism moving means is controlled.

(3) A rotating shaft to which a work is attached on one end side, a rotating means for rotating the rotating shaft about the axis of the rotating shaft, and a rotating shaft in a direction along the axis. And / or a rocking mechanism having a moving means for moving in a direction orthogonal to the axis, and a rocking means for rocking the rotating shaft such that one end of the rotating shaft can move along a circular orbit. And a control unit for controlling the driving of the swing mechanism and a tank in which a polishing medium having a large number of polishing particles is stored, and the control unit includes An operation of rotating the work about the axis, an operation of moving the work in a direction along the axis, an operation of moving the work in a direction intersecting the axis, and Moving along the arc path by moving means Selecting one or more operations from an operation group having an operation to be performed, and performing the selected single operation or a combination of the selected operations by the workpiece in the polishing medium. A polishing apparatus for polishing a workpiece, wherein the driving of the swing mechanism is controlled so that the workpiece is polished.

(4) The control unit combines the operations of the operation groups to rotate the work along the axis of the rotation axis and to move the work along an arc trajectory, and Operation to be tilted,
The workpiece polishing apparatus according to (3), wherein the swing mechanism is controlled so that the workpiece performs an operation of moving the workpiece along a linear trajectory while maintaining the inclination.

(5) A swing mechanism moving means for moving the swing mechanism in a direction intersecting with the axis is further provided, and the control unit controls the driving of the swing mechanism moving means. The work polishing apparatus according to (3) or (4).

(6) The control unit is characterized in that when the dimension of the work in the longitudinal direction is larger than the dimension in the direction orthogonal to the longitudinal direction, the control unit controls the swing mechanism moving means to be driven. The work polishing apparatus according to 5).

(7) The tank has a plurality of elastic members for vibrating the tank and vibrating means for vibrating the tank. 2. The apparatus for polishing a workpiece according to claim 1.

(8) The apparatus for polishing a workpiece according to any one of (1) to (7), wherein the bottom of the tank is curved.

(9) The tank has an inner tank provided with a plurality of holes through which polishing chips between the polishing medium and the workpiece pass without passing the abrasive particles in the tank. (1) to (8), comprising an outer tank which is provided at the bottom thereof and which has a discharge port for discharging the polishing swarf that has passed through the plurality of holes.
A polishing apparatus for a workpiece according to claim 1.

(10) The apparatus for polishing a workpiece according to (9), wherein the outer tank has a washing means for washing the polishing residue from the bottom.

(11) The rotary shaft has a work mounting portion for mounting the work, a rotary shaft main body pivotally supporting the work mounting portion on one end side, and the work mounting portion is bent with respect to the axis. (1) The fixing device according to any one of (1) to (10), further comprising fixing means for selectively fixing to the rotating shaft main body at a work mounting position and a work polishing position arranged along the axis. Work polishing equipment.

(12) A rotating shaft on which a work is mounted on one end side, rotating means for rotating the rotating shaft about the axis of the rotating shaft, and a rotating shaft in a direction along the axis. And / or a moving means for moving in a direction orthogonal to the axis, and a rocking means for rocking the rotating shaft such that one end of the rotating shaft is movable along an arcuate trajectory;
A polishing apparatus for a workpiece, comprising: a swing mechanism having: a control unit for controlling the drive of the swing mechanism; and a tank in which a polishing medium having a large number of abrasive particles is stored. In the operation group, one or a combination of a plurality of operations is selected as the operable operation from an operation group which is a group indicating the operable operation of the swing mechanism 10.
By controlling the driving of the swing mechanism 10 to perform a selected single operation or a combined operation of the selected operations, and moving the work through the polishing medium along a predetermined moving path. And polishing the work.

(13) A starting position arranging step of inserting a work mounted on one end side of the rotating shaft into the polishing medium, and while rotating the work about the axis of the rotating shaft,
Moving along a circular arc orbit, making it inclined with respect to the horizontal plane, and moving it in a linear orbit while maintaining this inclination, and polishing the work by repeating this moving step. (12) The method for polishing a work according to (12).

(14) When the dimension of the workpiece in the longitudinal direction is larger than the dimension in the direction orthogonal to the longitudinal direction, the method includes rotating the workpiece about the axis of the rotating shaft while rotating the workpiece about the axis of the rotating shaft. The method for polishing a workpiece according to (12) or (13), further comprising a cross direction moving step of moving the work in a direction crossing the axis.

[0126]

According to the present invention, the structure is not large and does not require a large amount of power. Even if the work is a large work or a work having a relatively complicated shape, the work can be uniformly performed over the entire surface. Provided are a workpiece polishing apparatus and a polishing method that can be polished.

Further, the present invention provides a workpiece polishing apparatus capable of arbitrarily controlling a movement path of a workpiece in a polishing medium.

The present invention also provides a work polishing apparatus capable of uniformly polishing the entire surface according to the shape of the work.

[Brief description of the drawings]

FIG. 1 is a schematic partially cutaway side view of a workpiece polishing apparatus according to a first embodiment of the present invention.

FIG. 2A is an enlarged cross-sectional view of a pivot portion of a rotating shaft of the work polishing apparatus of FIG. 1; FIG. 2B is a cross-sectional view showing a first modified example of the rotating shaft of the workpiece polishing apparatus of FIG.

FIG. 3A is a cross-sectional view showing a second modification of the rotation shaft of the work polishing apparatus of FIG. 1; FIG. 3 (b)
It is sectional drawing which shows the 3rd modification of the rotating shaft of the grinding | polishing apparatus of the workpiece | work of FIG.

FIG. 4 is a partially exploded perspective view of the work polishing apparatus of FIG. 1;

FIG. 5 is a schematic partially cutaway side view showing a state before the polishing of the work polishing apparatus of FIG. 1 is started;

FIG. 6 is a schematic partially cutaway side view showing a state during a polishing operation of the workpiece polishing apparatus of FIG. 1;

FIG. 7 is a schematic partially cutaway side view of a workpiece polishing apparatus according to a second embodiment of the present invention.

FIG. 8 is a schematic partially cutaway side view of a workpiece polishing apparatus according to a third embodiment of the present invention.

FIG. 9A is a schematic top view of a first moving unit. FIG. 9B is a schematic top view of the second moving unit.

FIG. 10 is a schematic top view showing a movement path of a work in a tank in the work polishing apparatus according to the third embodiment.

FIG. 11 is a schematic diagram illustrating an example of control by a control unit of a workpiece polishing apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 ', 1 "Polishing apparatus 2 Polishing medium 3, 3', 3" Tank 4, 4 ', 4 "Work 5 Work mounting part 6 Rotating shaft 7 Rotating means 8 Moving means 9 Swing means 10 Swing mechanism 11 , 11 ″ in / out mechanism 12 rocking mechanism moving means 21 abrasive particles 31 inner tank 32 outer tank 33 hole 34 outlet 35 shower 61 rotating shaft main body 61a pivotal support 63 fixing means 83 moving cylinder 84 guide portion 92 guide support 93 rocking Cylinder 94 Rocking means fixing part 111, 111 "Guide part 112, 112" In / out cylinder 113, 113 "In / out mechanism support part 200 Elastic member 210 Vibration means

Claims (9)

[Claims] 1. A tank in which a polishing medium composed of a large number of abrasive particles and a liquid is accommodated, a rotating shaft on which a work is mounted on one end side, and the rotating shaft being centered on the axis of the rotating shaft Rotating means for rotating; moving means for moving the rotating shaft along the axis; rocking means for swinging the rotating shaft such that one end of the rotating shaft is movable along a circular orbit; The work is moved along the arc trajectory in the polishing medium while being rotated about the axis, and is caused to be inclined with respect to the horizontal plane by this movement. And a control unit that drives and controls the rotating shaft by the rotating unit, the moving unit, and the swinging unit so that these movements are repeated and polished by the polishing medium. Polishing device of a work according to claim. 2. The apparatus according to claim 1, further comprising: a swing mechanism moving means for moving the rotating shaft, the rotating means, the moving means, and the swing means in a direction intersecting the axis. The apparatus for polishing a workpiece according to claim 1, wherein driving of the mechanism moving means is controlled. 3. A rotating shaft on which a work is mounted on one end side; rotating means for rotating the rotating shaft about the axis of the rotating shaft; and a direction along the axis, And / or a oscillating mechanism having: a moving means for moving in a direction orthogonal to the axis; A control unit for controlling the driving of the rocking mechanism, and a tank in which a polishing medium having a large number of abrasive particles is accommodated. An operation of rotating about an axis,
An operation in which the work is moved in a direction along the axis, an operation in which the work is moved in a direction intersecting with the axis, and the work is moved along the arc trajectory by a rocking means And selecting one or more operations from the operation group having the operations described above, and performing the selected single operation or the combined operation of the selected operations by the workpiece in the polishing medium. An apparatus for polishing a workpiece, wherein the driving of the swing mechanism is controlled so as to be polished. And a controller configured to combine the operations of the operation groups so that the work is rotated along an axis of the rotation axis, and the work is moved along an arc trajectory. The swing mechanism is controlled so that the work performs an operation of making the work inclined with respect to the work and an operation of moving the work in a linear trajectory while maintaining the inclination. Item 4. A workpiece polishing apparatus according to Item 3. 5. The apparatus according to claim 1, further comprising a swing mechanism moving means for moving the swing mechanism in a direction intersecting with the axis, wherein the control unit controls driving of the swing mechanism moving means. The work polishing apparatus according to claim 3 or 4. 6. The control unit according to claim 1, wherein the control unit controls the swing mechanism moving unit to be driven when a dimension of the workpiece in a longitudinal direction is larger than a dimension in a direction orthogonal to the longitudinal direction. 6. The polishing apparatus for a workpiece according to 5. 7. The tank according to claim 1, wherein the tank has a plurality of elastic members that support the tank so that the tank can be vibrated, and a vibrating unit that vibrates the tank. Polishing device for the described work. 8. The apparatus according to claim 1, wherein the bottom of the tank is curved. 9. The inner tank having a plurality of holes through which polishing chips between the polishing medium and the workpiece pass without passing the abrasive particles in the tank, and the inner tank is accommodated therein. 9. The apparatus for polishing a workpiece according to claim 1, further comprising: an outer tank provided at a bottom with a discharge port for discharging the polishing swarf that has passed through the plurality of holes. 10.