JPH0318126Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Field of industrial application) This invention is based on a predetermined amount of mass (meaning the abrasive and workpiece in a barrel tank, or the abrasive and workpiece with water, compound, etc.). In a device in which the center line of the barrel tank intersects the center line of the main shaft on the turret when polishing is carried out in a rotating and revolving barrel tank, the inclination angle of the barrel tank installed on the horizontally rotating turret can be adjusted. This invention relates to a planetary rotating barrel polishing machine.

(Prior art and problems to be solved) Conventional planetary rotating barrel polishing machines are widely used due to their high polishing efficiency, but they have the disadvantage that it takes a lot of time and effort to attach and detach the lid. . That is, in the conventional planetary rotating barrel polishing machine, as shown in FIG. 1A, when the centrifugal force increases, the mass (the shaded area in the figure) stands upright. Therefore, if there is no lid, the mass will leak out from the opening as shown by arrow a in FIG. In addition, if the barrel tank is tilted as shown in Figure 1 B, when the barrel tank is placed in the position shown in the figure on the right, the mass will leak out from the opening as shown by arrow b in the same way as above. .
Therefore, in the apparatuses A and B of FIG. 1, if the number of rotations is selected to the extent that the mass does not leak out, the polishing efficiency will be severely reduced and the original characteristics of the planetary rotating barrel polishing machine will be lost.

Conventionally, all planetary rotating barrel polishing machines have opening/closing lids and are sealed during polishing. This is because the mass pops out due to centrifugal force.

Further, the conventional barrel tank is installed on the turret at a predetermined angle, and the inclination cannot be changed.

(Means for Solving the Problem) However, according to this invention, as shown in Fig. 2, a plurality of upper-opening barrel tanks are attached to the turret, and at that time, the center axis (Z) of the barrel tanks is aligned perpendicular to the turret. The barrel tank is installed with the central axis of the barrel tank tilted inward by α degrees so that it always intersects the extension line (Y) of the main axis above the turret, and the barrel tank is rotated at high speed around the main axis of the turret. A centrifugal force is applied to the mass in the barrel tank in the direction of the orbit of the circumference of the circumferential wall and the bottom of the barrel tank so that the mass is pressed against the inner wall of the barrel tank, and the mass is moved by rotating the barrel tank around its axis. As a result, we succeeded in obtaining a highly efficient polishing machine in which the mass (the mass amount is selected appropriately depending on the shape and inclination angle of the barrel tank) does not leak out from the opening and the workpiece is polished with the abrasive material. This is what I did.

(Function) In this invention, the barrel tank, which is opened upward, is tilted toward the center, so that polishing can be performed with the barrel open. In addition, the inclination angle of the barrel tank can be adjusted, so the inclination angle can be adjusted according to various polishing conditions.
You can get the best angle.

(Embodiment) The details of this invention will now be explained with reference to the embodiment shown in FIGS. 3 and 4. A main shaft 3 to which a sprocket or pulley 16 is fixed is installed vertically to a boss 2 on a mount 1, and a turret 4 is rotatably attached to the upper end of the main shaft 3. A main shaft 3 is attached to the periphery of the turret 4.
A plurality of bearings 5 are installed at equal intervals on the same circumference centered on (this example shows the case of two bearings, but 4 to 6 bearings are usually optimal) and connected to the bearings 5. Insert the shaft 6. The lower end of the barrel shaft 9 is connected to the upper end of the connecting shaft 6 by a universal joint 1.
Concatenate with 0. The barrel shaft 9 is inserted into the bearing 7. The bottom wall of an upper-opening barrel tank 8 is fixed to the upper end of the barrel shaft 9, and the barrel shaft 9 is fixed on the same center line as the barrel tank 8. A bolt 13 is attached to the side wall of the bearing 7, and is loosely fitted into an arc-shaped long hole 12 provided diagonally to a bracket 11 installed vertically on the turret 4. The inclination angle of the barrel tank 8 can be adjusted as appropriate by being locked to the barrel tank 8. On the other hand, a sprocket or pulley 1 is attached to the lower end of the connecting shaft 6.
5 is fixed, and the sprocket or pulley 15
are interlocked by the sprocket or pulley 16 and chain or belt 17. The turret 4 is rotated via a pulley 19 of a motor 18 installed on one side of the frame 1 and a belt 20 attached to a groove in the side wall of the turret.

The operation of this device will be explained based on the above structure. When a predetermined amount of mass is charged into the upper-opening barrel tank 8 and the motor 18 is driven, the turret 4 rotates and the barrel tank 8 is rotated around the main shaft 3. If this direction of rotation is indicated by arrow d in Fig. 4, the connecting shaft 6 is rotated by the belt or chain 17 in the direction of arrow e in the figure, and the barrel shaft 9 of the barrel tank 8 is rotated in the direction of arrow c in the figure. (For example, if the diameters of the sprockets or pulleys 15 and 16 are the same, the ratio n/N between the rotation number n and the revolution number N can be set to -1). Therefore, the upper opening barrel tank 8 is simply inclined inward above the barrel tank 8 so that its center axis always intersects the extension of the center line of the main shaft 3 at an acute angle above the turret 4. Since the mass in the barrel tank 8 revolves around the barrel tank 8, a centrifugal force is applied to the mass in the barrel tank 8 in the direction of the orbit of the outer circumferential rotation of the peripheral wall and the bottom of the barrel tank 8, and there is no risk of leakage from the upper opening of the barrel tank 8. Further, since the barrel tank 8 rotates on its own barrel axis 9, the mass within the barrel tank 8 moves due to the rotation, and the workpiece is polished by the abrasive material due to the relative movement between the workpiece and the abrasive material. When the polishing is completed in this way, the workpiece is taken out from the opening and one process is completed. In a structure in which the barrel tank 8 is mounted inside the barrel case, the barrel case 22 is used instead of the barrel tank 8.
(FIG. 5) is fixed to the barrel shaft 9, and the upper-opening barrel tank 8 with a handle is fitted into the barrel case 22.

In the above embodiment, the vertically installed main shaft 3 is rotatable, the turret 4 is fixed to the upper end of the main shaft 3, and a sprocket or pulley 16 is loosely fitted in the center of the main shaft 3. Even if it is fixed to the boss 2 and cannot rotate, the barrel tank 8 can be made to revolve around the main axis and rotate about the central axis 9 in the same manner as described above. Furthermore, in FIG. 5, the base end of the support arm 21 is rotatably mounted on the turret in order to support the bearing 7 of the barrel shaft 9, and the bearing 7 is rotatably mounted at the tip of the support arm 21. be. In this case, to adjust the angle of the barrel shaft 9, there are two methods: moving the base end attachment position of the support arm 21, and moving the bearing 7 along the barrel shaft 9. In any case, the supporting device for the barrel shaft 9 is not limited to the specific structure of each of the embodiments described above.

Next, Figure 6 shows barrel tanks of various shapes; prismatic (a), cylindrical (b), spherical (c), square (d) to circular (e) bottle shapes can be used. I can do it.

(Effects of the invention) As described above, according to this invention, the barrel tank with an upward opening is inclined inward of the turret, revolves around the main axis of the turret, and the barrel axis coincides with the central axis of the barrel tank. Since it rotates on its own axis, even if the barrel rotates planetarily, the mass will not leak out from the upper opening, and the workpiece can be polished with abrasive material with high efficiency.It is ideal that there is no need to attach or detach the lid. This is a planetary rotating barrel polishing machine.

Additionally, the barrel axis can be adjusted to the optimum angle depending on the type of workpiece, rotation speed, shape of the barrel tank, etc.

[Brief explanation of the drawing]

Fig. 1 is a simplified diagram showing a conventional planetary rotating barrel polishing machine, Fig. 2 is a simplified diagram showing a planetary rotating barrel polishing machine of this invention, and Fig. 3 is a plan view of an apparatus for carrying out this invention. , FIG. 4 is a partially sectional front view, FIG. 5 is a diagram showing another example of supporting the barrel shaft, and FIG. 6 is a perspective view of barrel tanks of various shapes used in this invention. 1... Frame, 2... Boss, 3... Main shaft, 4...
Turret, 5...Bearing, 6...Connection shaft, 7...
Bearing, 8... Upper opening barrel tank, 9... Barrel shaft, 10... Universal joint, 11...
Bracket, 12... Long hole, 13... Bolt, 1
4... Nut, 15, 16... Pulley or sprocket, 17... Belt or chain, 18...
...Motor, 19...Pulley, 20...Belt, 21...Support arm, 22...Barrel case.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A plurality of connecting shafts are rotatably installed around the circumference of a turret, which is horizontally and rotatably installed on a pedestal, vertically passing through the turret at equal intervals on the same circumference. , one end of the barrel shaft inclined toward the center is connected to the upper end of each of the connecting shafts by a universal joint, and a barrel tank opening upward is connected to the other end of the barrel shaft, the center axis of which is aligned with the barrel shaft. 1. A planetary rotating barrel polishing machine, wherein the barrel shaft is supported by a support member fixed onto a turret so as to be adjustable in inclination. 2. Utility model registration claim 1, characterized in that the support member is a bracket, the bracket has an arc-shaped long hole, and a bolt for fixing the barrel shaft bearing is inserted into the long hole. Planetary rotating barrel polishing machine as described in . 3. The planetary rotating barrel polishing machine according to claim 1, wherein the support member is a support arm having one end attached to the turret and the other end attached to the bearing of the barrel shaft. 4. The planetary rotating barrel polishing machine according to claim 1, wherein the barrel shaft is prismatic, cylindrical, spherical, or square or circular bottle-shaped. 5. The planetary rotating barrel polishing machine according to claim 1, wherein the turret is rotatably attached to the upper end of the main shaft vertically installed in the center of the mount or fixed to the upper end of the main shaft. . 6. The barrel shaft and the barrel tank are installed by directly fixing the end of the barrel shaft to the center of the end face of the barrel tank, or by fitting and fixing the barrel tank into a barrel case attached to the end of the barrel shaft. A planetary rotating barrel polishing machine according to claim 1 of the utility model registration claim.