JPH01257561A - Barrel polishing machine provided with entirely spherical continuous polishing cylinder - Google Patents

Abstract

PURPOSE:To polish a curved surface having required curvature uniformly and efficiently by forming the entire inner surface of a cylinder with approximately same curvature as that of the curved surface of a product and rotating a rotary drum through predetermined amount of polishing material. CONSTITUTION:A spherical continuous polishing cylinder 35 is formed of metal, ceramic, synthetic resin and the like, and curved inner faces A-E are formed with same curvature as that of the curved face of a product. Predetermined amount of polishing material and an object are placed in the cylinder 35 and a cover 35a is closed, then the cylinder 35 is mounted on a plurality of cylinder receivers of a rotary drum and rotated with the axis 35C being inclined by an angle lower than 7, preferably lower than 4, with respect to the rotary shaft of the rotary drum. Consequently, the object to be polished slides while pressure contacting from the curved face A to B then to C,...E through a micro and uniform polishing material layer and reciprocates between the opposite end sections thus performing polish work. By such arrangement, a curved surface having predetermined curvature can be polished uniformly.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a barrel polishing device that can easily form products having symmetrically processed curved surfaces, such as oscillating crystals in the shape of flat bars, strips, or spindle disks, by polishing.

Conventionally, devices with various structures have been developed as devices for automatically polishing the surface of articles.
Barrel polishing devices disclosed in Japanese Patent No. 9156 and Japanese Patent No. 45-34360 are known. This polishing device has a plurality of cylinder supports supported on the outer periphery of a rotary drum parallel to the rotation axis of the rotary drum, and each of these cylinder supports has a plurality of cylinder supports symmetrically with respect to the axis of the cylinder support. Attach hollow cylindrical or prismatic cylinders, store an abrasive material and an object to be polished in each cylinder, and connect the rotary drum to a motor using a wet or dry polishing method, and fix each cylinder holder. The structure is such that the plurality of cylinders attached to each cylinder holder rotate as a unit as the rotary drum revolves, and the central axis of each cylinder is connected to each cylinder holder. The connection between the rotary drum and the fixed part is achieved by meshing gears, and the rotation of the rotary drum is operated continuously.

By the way, the above-mentioned conventional polishing device is very useful for simply removing deburrs and polishing the surface of articles, but for example, it can be used for polishing oscillating crystals in the shape of flat rods, strips, or spindle disks. It cannot be applied to cases where the object to be polished must be polished into a predetermined shape (a shape with a symmetrically processed curved surface), such as in the following.

The reason for this will be explained by taking the above-mentioned oscillation crystal as an example.

First, the oscillation crystal is shown in (a) of Figure 1 (1) (2) (3).
As shown in the figure, a quartz single crystal piece i cut out in the shape of a thin flat bar, strip, or disk is polished, and its top and bottom surfaces ia, i are polished.
Leaving the center parts A and B of b, the outer periphery is shaved off with a constant curvature, and as shown in (b) of (1), (2), and (3), 11a and 11b of li are polished into a double-sided convex lens shape.

In this way, in order to polish the top and bottom surfaces ia1 with a constant curvature while leaving a part of the three surfaces in Figure A, the top and bottom surfaces ia of the quartz single crystal l, The ib must be rubbed evenly for the same amount of time.

However, in the above-mentioned polishing device, the abrasive material and the object to be polished in each cylinder are subjected to a force directed outward in the radial direction of the rotary drum due to the centrifugal force caused by the rotation of the rotary drum, and the material and object to be polished are pushed against the inner wall of each cylinder located outside the rotary drum. It's always being pushed. For this reason, the object to be polished and the polishing material are pressed against each other by a large centrifugal force, but at the same time, the cylinder rotates in the opposite direction to the rotation of the drum, so it flows against the inner wall of the cylinder.
Moreover, since the inner wall of the cylinder is provided with a rubber or synthetic resin layer having ridges, the abrasive material and the object to be polished are violently disturbed by this flow.

In this way, the abrasive material and the object to be polished, which are in contact with each other under great pressure, slide against each other and polishing is performed. The surface will be polished almost evenly. In addition, when the object to be polished is a flat-shaped object, the part where strong sliding with the abrasive material occurs is between the abrasive material that is in direct contact with the inner wall of the cylinder and the object to be polished above it, and the flat shape at this time The probability that the object to be polished will turn over is also very low.

Therefore, in the case of a flat object to be polished, one of its upper and lower bottom surfaces must be polished excessively, and the polishing cannot be performed with a predetermined curvature.

Therefore, with this polishing apparatus, it is not possible to polish and shape the quartz single crystal piece l into the shape of a double-sided convex lens.

The present inventor has conducted extensive experiments in order to develop a barrel polishing device that can easily form products with flat and symmetrically processed curved surfaces, such as oscillating crystals in the shape of flat rods, strips, or spindle discs, by polishing. As a result of repeated consideration, the following points were found.

(b) No rubber or synthetic resin layer is provided on the inner surface of the cylinder, the inner surface is kept in a relatively smooth condition, and the entire inner surface of this cylinder has a curvature that is approximately the same as the processed curved surface of the product to be molded. The specified amount (0025% of the internal volume of the cylinder) is
When the rotary drum is rotated with an abrasive material of about 100 to 100 mm in diameter, the abrasive material in the cylinder is pressed against the inner wall of the cylinder by centrifugal force, forming an abrasive layer with a uniform thickness. As a result, a polishing layer is formed on the inner wall of the cylinder whose curvature is the same as that of the inner wall of the cylinder, that is, the same as the curvature of the curved surface of the processed product.
3) By sliding a spindle disk shape, a regular square disk, or a rectangular square disk shape, a curved surface with a desired curvature is formed on one bottom surface of the object to be polished.

When the cylinder is rotated at a predetermined angle (7° to 15°) with respect to the rotation axis of the rotary drum, the abrasive material in the cylinder and the object to be polished slide, and one end of the cylinder and the other end of the cylinder are rotated. Since the polishing fluid flows continuously in a figure-eight pattern along the inner peripheral surface of the cylinder, the polishing efficiency is further increased and a uniform circular curved surface with the required curvature is formed.

However, it is impossible to polish the flat bar-shaped oscillating crystal piece shown in FIG. 1 (1). This is because when the object to be polished is put into the rectangular cylindrical cylinder shown in Figure 2 ■■, the object to be polished is polished only in the longitudinal direction and horizontal axis direction of the rectangular cylindrical cylinder, and not in the vertical axis direction. It turned out that it was not polished.

Therefore, when polishing the object to be polished, by using the spherical polishing cylinder shown in FIG.

The object to be polished and 3 to 8 g of the abrasive material layer are placed in a spherical polishing cylinder, a plurality of spherical polishing cylinders are set in the polishing cylinder case, and the polishing is performed after being fixed to the polishing cylinder holder with a jig and a presser cover. The object to be polished is pressed and slid against the inner wall of the spherical polishing cylinder, and can be polished into a curved surface with a predetermined curvature in any direction.

(b) Development of a new polishing device In recent years, the high-tech industry has entered an era of lightness, thinness, and shortness, and the vibrator industry is also under pressure to increase production of small, flat rod-shaped vibrators.

After careful consideration of the results of experiments, the present inventor developed a barrel polishing device equipped with a continuous polishing cylinder that is entirely spherical and can handle a large amount of polishing of small flat rod-shaped vibrators.

A fully spherical continuous polishing cylinder (hereinafter abbreviated as spherical continuous polishing cylinder) is one in which two spherical poles are cut and successively joined into multiple pieces to form an integrated cylinder with lids on both ends. (See Figure 3 (2)) The spherical continuous polishing cylinder is made of a material such as metal, ceramic, or synthetic resin, and the inner surface is kept smooth.
The entire inner surface of this cylinder is molded to have the same curved surface curvature as the processed curved surface of the product to be molded, a predetermined amount (1 g to 5 g per ball) of abrasive material and the object to be polished are placed in this cylinder, and a rotary drum is used. When the cylinder is rotated, the abrasive material inside the cylinder is pressed against the inner wall of the cylinder by centrifugal force, forming a slightly uniform layer of abrasive material. As a result, a polishing layer is formed in which the curved surface of the inner wall of the cylinder is the same as the curvature of the inner wall of the cylinder, that is, the same as the curvature of the curved surface of the processed product. ), a curved surface with a desired curvature is formed on the bottom surface of the object to be polished. When the cylinder is tilted at a predetermined angle of 7 degrees or less, preferably 4 degrees or less, with respect to the rotation axis of the rotary drum, the abrasive material in the cylinder and the object to be polished slide, and one end of the cylinder and the other end of the cylinder slide. Polished by reciprocating flow between both ends while gradually sliding from the ball A to the ball B along the circumferential surface of the ball in a continuous spherical shape between the other end, No matter which direction the object to be polished faces, the vertical axis
A curved surface having the same required curvature is formed uniformly along the horizontal axis, Y axis, and X axis.

The above-mentioned polishing device was developed as a dedicated polishing device for flat bar-shaped (Fig. 1 (1)) and strip-shaped vibrators, but it can also be used for polishing spindle disk-shaped, regular square, and rectangular disk-shaped vibrators using the spherical continuous type. The polishing results confirmed that the cylinder had better finishing conditions than the previously mentioned polishing method.

In addition, if the mounting angle of the cylinder with respect to the rotating shaft of the rotary drum is large, the reciprocating flow will be intense and the chances of damage to the polished object will be high. Also, if the angle of inclination is zero, there is no flow, so uniform polishing cannot be achieved.

As a result of experiments, it was found that the inclination angle of the cylinder and the dimension of the sphere's pole relative to the curvature are closely related.

When polishing vibrators using a barrel polishing machine equipped with the above-mentioned spherical continuous polishing cylinder, it is possible to increase the productivity of vibrators by improving the polishing finish characteristics, increasing the efficiency of polishing work, and increasing the efficiency of polishing capacity. It is believed that this will greatly contribute to the

The polishing device according to the present invention differs from the conventional polishing device in that the central axis of the cylinder holder is inclined at a predetermined angle with respect to its rotation axis, and the cylinder attached to the cylinder holder is of a spherical continuous type, and the entire inner peripheral surface thereof is is formed to have the same curvature as the required processing curved surface of the object to be polished, and the rotary drum is rotated. If the motor is operated intermittently with a predetermined operation and stop, when the motor stops, that is, when the rotary drum stops rotating, the object to be polished in the cylinder will be released from the centrifugal force and will be reversed. If this continues for a predetermined period of time, the rate at which both wave polished surfaces of the flat object to be polished can be polished can be approximately equal to and equal to half.

Furthermore, in addition to the above, when the rotary drum is stopped and the cylinder receiver and the polishing cylinder attached to the cylinder receiver are rotated by a drive device (geared motor) that rotates the cylinder receiver, the object to be polished is evenly agitated and the object to be polished is Increases the probability of uniform polishing on both sides.

In addition, by alternately operating the rotary drum in intermittent forward and reverse rotation, polishing of the object to be polished can be done in one direction only.
Polishing is done evenly from both sides, preventing the center of the polished object from shifting, resulting in a good polishing finish.

It is equipped with a control device that commands the operation of each of the above devices.

4. The present invention will be explained with reference to the drawings.

FIG. 4 shows an embodiment of the present invention, and reference numeral 1 in the figure indicates a case body. A pivot 2 is attached to the center of the case body 1 via bearings 3 and 4. A bobbin-shaped rotary drum 5 is rotatably attached to the center of this pivot 2.

This rotary drum 5 includes a cylindrical rotating shaft 6, bearing units 7 and 8 attached to both ends of the rotating shaft 6, and is fixed to the bearing unit 7 so that the rotating shaft 6 becomes the center of rotation. ing. It is composed of a disk 10 fixed to a flywheel 9 and a bearing unit 8 so that the rotating shaft 6 is the center of rotation. The flywheel 9 is a motor (rotary drive device) with a brake gear fixed to the bottom of the case body 1.
The rotary drum 5 is connected to the main motor 11a and the main motor 11b via the belt 12, and therefore, the rotary drum 5 is rotated by the drive of the main motor 11a.

Furthermore, between the bearing 3 and the bearing unit 8, there is a multi-piece bully (single bearing rotation and Fixing member) 15
is rotatably attached. This multiple brie 15
is a gear motor with a brake fixed to the middle part of the main body 1.
The slack of the chain can be adjusted by a sprocket 17 attached to the motor 16 and a chain tension sprocket 20 connected to the chain wheel 14 by a chain 18 and attached to a chain tension 19. This device rotates the cylinder receiver by driving the gear motor 16, and fixes it by applying the brake for polishing.

Further, as shown in FIG. 4, a plurality of cylinder receivers 21 are rotatably attached to the outer periphery of the rotary drum 5 between the flywheel 9 and the disc 10.

These cylinder receivers 21... are each fixed by bearings 22 and bearings 23 at positions symmetrical to the rotation axis 6 of the rotary drum 5, and their rotation shafts 21a... are fixed to the rotation axis 6 of the rotary drum 5. It is parallel to 6.

The ends of the rotating shafts 21a on the flywheel 9 side protrude outward, and V-belt pulleys (hereinafter referred to as ■ pulleys) 24 are attached to their tips. There is. Each ■ pulley 24... and the said pulley 13
and ■ are connected by a belt 25.

Therefore, by driving the main motor 11a to rotate the rotary drum 5, applying a brake to the geared motor 16, and fixing the multiple pulleys 15, each cylinder receiver 21
rotates in the opposite direction to the rotation direction of the rotary drum 5. In other words, each cylinder receiver 21... rotates in the opposite direction to the rotation of the rotary drum 5 while rotating, so to speak, with the rotation of the rotary drum 5. At this time, if the diameter of the V-pulley 24 of each cylinder receiver 21 and the diameter of the multiple pulley 13 are made the same size, the rotary drum 5
Each cylinder receiver 21 rotates once for one revolution.

Therefore, by making the diameter of the V-pulley 24 smaller than the diameter of the multiple pulley 13, the rotation ratio will change.

Each of the cylinder receivers 21... is formed into a cylindrical shape as shown in FIG. 4, and their virtual central axes 21C...
are attached so as to be inclined at a predetermined angle of 7 degrees or less, preferably 4 degrees or less, with respect to the rotation axis 21a.

As shown in FIG. 4, one or more spherical continuous polishing cylinders (hereinafter abbreviated as cylinders) 35 are accommodated and fixed in the cylinder receiver 21 configured as described above. It looks like this.

The cylinder 35 is attached to the cylinder receiver 21 in such a manner that the center axis of the cylinder 35 coincides with or is parallel to the center axis 21C of the cylinder receiver 21. The cylinder 35 is made of metal or ceramic that has high wear resistance and relatively good sliding properties, and is shown in FIG.
As shown in 1), a main body 35, a lid 35a, a bottom body 35b, and a handle 3 are formed into a continuous cylindrical shape by cutting off both poles of a spherical shape.
It is composed of 5C. The cylinder main body 35 is formed into a continuous cylindrical shape by cutting off both poles of a spherical shape with the same curvature as the required processing curved surface of the object to be polished, and the bottom body 35b is welded and the lid 35a is attached to the inner periphery of the opening of the cylinder main body. It fits into the place where the solder fit 35d is formed.

When the object to be polished and the abrasive material are put into the cylinder 35 and polished, the same curvature will always come into contact with the curved surface no matter how the object is moved along the entire inner peripheral surface.

Here, the principle of the fully spherical continuous polishing cylinder will be explained.

(21a') of the spherical continuous polishing cylinder is parallel to the central axis 21a of the cylinder receiver 21, and (21c') of the spherical continuous polishing cylinder coincides with the virtual central axis 21C of the cylinder receiver, It is inclined at a predetermined angle with respect to the rotating shaft 21H. The object to be polished inside the polishing cylinder flows along a predetermined inclination angle perpendicular to the virtual central axis (21C') of the cylinder, and the above-mentioned multiple pulleys 13 and V pulleys 2
By changing the ratio of the diameter with 4, the virtual center axis of the polishing cylinder is displaced (21C'-1 to 21C'-2), so that it crosses. Therefore, in the case of a single spherical shape,
Only the surface marked H in FIG. 3 is polished and slid, and there is no flow of the object to be polished against N. Therefore, this unnecessary part was removed and the H sides were continuously joined to form an integral cylindrical shape, and a bottom body and a lid body were attached.

In this case, it is desirable to process the H surface into a true sphere.

By using the above-mentioned spherical continuous polishing cylinder, polishing capacity is increased and work efficiency is further improved.

Moreover, as shown in FIG. 4, the main motor 11a includes:
An intermittent operation control device 26 that causes the main motor 11a to repeatedly rotate and stop for a predetermined period of time, and an intermittent forward rotation/reverse rotation device 27
There is also a main motor 11 in the gear motor 16.
There is a device 28 that rotates the cylinder receiver 21 and stirs the object to be polished during the intermittent stop time of a. It is composed of a transmission device 29, an intermittent cycle setting device 30, and a total operating time setting device 31.

The transmission device 29 rotates the main motor 11a from low speed rotation to
This device is capable of continuously variable speed up to high speed rotation, and is used to set good conditions for polishing objects to be polished, and also to adjust the speed when starting and stopping the main motor 11H.

The intermittent cycle setting device 30 includes an intermittent operation control device 26 that repeatedly operates and stops the rotary drum 5 by the main motor (rotary drive device) 11a, and the rotary drum 5
The cylinder receiver 2 is operated alternately in intermittent forward rotation and reverse rotation, and the transmission 29 (using an inverter) is operated during the intermittent stop time of a.
1 is a device for setting the stop time between each intermittent operation time of the device 28 for stirring the object to be polished, and is composed of a plurality of timers and relays that alternate between operation and stop.

The total operation time setting device 31 repeats the intermittent operation and stop operation set by the intermittent cycle setting device 30. This is for setting the total operating time and consists of an automatic timer. In the above configuration, the intermittent operation control device 26 using the main motor (rotary drive device) 11a
and geared motor (cylinder receiving rotation drive device) 1
6 constitutes an intermittent operation drive device 32.

5. Setting the usage method and function of the polishing device of the configuration.

The lid 35a of the polishing cylinder 35 is removed, an appropriate amount of abrasive and the object to be polished are put into the polishing cylinder main body 35, and the lid 35a is attached again. The rotary drum of the polishing device is stopped at a position where the desired cylinder receiver can be easily set using the inching device on the operation panel 34, and the motor 11H is braked.

The geared motor 16 is rotated so that the socket of the cylinder receiver 21 is in an upward position, and when it is in a fixed position, it is fixed by an electric brake device.

The polishing cylinder 35 is set and the fixing jig of the cylinder receiver 21 is tightened to securely fix it inside the cylinder receiver 21.

After repeating the above operation and setting the polishing cylinders 35 in all the cylinder receivers 21, the shutter of the polishing apparatus body is lowered.

Next, the brake of the main motor 11a is released, the required intermittent operation time and stop time are set by the intermittent cycle setting device 30, and the total operation time setting device 31 is used to set the time from the start of driving the device to the final stop. setting, turn on the operation switch in the operation panel 34, and start operation.

The rotary drum 5 rotates as the main motor 11a is driven. (80RPM to 130RPM) At the same time, the cylinder receivers 21... also revolve together with the rotary drum 5. At this time, a brake is applied to the geared motor 16 connected to the cylinder receiving rotation and fixing member 15 and the chain 18. The V-pulley 24 fixed to the cylinder receiver 21 side is a part of the multiple pulleys of this fixing member 15, and the V-belt 2
5, the cylinder receiver 21 rotates.

At this time, the central axes 21C of the cylinder receivers 21 are inclined at a predetermined angle with respect to the rotating shaft 21H, so that the abrasive material and the object to be polished in each cylinder 35 are transferred to the rotary drum 5.
Due to the centrifugal force of the rotation, they are pressed against each other with a large force and are gradually polished along the spherical surface of the cylinder, completely changing the inside of the cylinder. ■By making the pulley 24 side preferably smaller, the cylinder receiver 21 is displaced and gradually displaced in a figure 8 pattern (1).
, As a result, the object to be polished flows from A to E, . . . from E to A.

In addition, if the inclination angle of the sillage receiver 21 is large at this time,
As a result of experiments, it was found that when the ratio of the diameters of the multiple pulleys and the V-pulleys is large, the flow becomes rapid and collides with the convex portion M in the polishing cylinder 35, resulting in an increased failure rate.

Therefore, it is necessary to gradually displace the material at the ratio described above.

, When the polishing of the object to be polished is completed in step 7, operate the switch on the operation panel 34 to energize the rotary drum 5, and stop the desired cylinder receiver 21 at the desired position using the motorized device. Then, remove each polishing cylinder 35 from the cylinder receiver 21 and polish it. - Take out the object to be polished from ring-35 and complete the work.

As explained above, in particular, the polarization of a flat bar crystal resonator
It is possible to polish a large amount of objects in a short period of time without damaging the objects to be polished, which require a symmetrical curved surface at tξ.

The effects of the present invention will be confirmed.

Further, as objects to be polished, oscillating crystals in the shape of strips, squares, spindle disks, etc. can also be polished in the same manner as with the spherical continuous polishing cylinder.

Polishing Examples Experiments were conducted under the following conditions using a fully spherical continuous polishing cylinder shown in Fig. 3 and a barrel polishing device shown in Fig. 4.

[Experimental Example 1] "Experiment Conditions" O Fully spherical continuous polishing cylinder dimensions (60% RX 8 continuous balls) x 400% LO Inclination angle of the same cylinder 2 degrees 0 Rotary drum rotation speed 80RPm - 100RPm O Polished object (crystal Single crystal piece) Dimensions: 8.2 x 1.8 ~ Thickness: 0.43% Quantity: 2,500 pieces 0 Abrasive green carbon (SIC type abrasive material C180015g "Operating conditions" Replacement of abrasive, polishing time and intermittent operation The times were as shown in Table 1 below.

(Table 1) A single crystal piece was polished under the above experimental conditions and operating conditions, and the polishing was completed. Among the products, we selected 20 that had been dyed in color so that they could be identified before polishing and inspected their appearance and number of oscillations.

The result was as shown in Table 2.

"Inspection Standards" Appearance inspection Using a 10x magnifying lens Oscillation inspection Oscillation measuring machine The acceptance criteria for the quality control items of the oscillation crystal are as follows: Appearance inspection No cracks, chips or small chips are allowed on the body of the oscillation crystal. .

The tip of the oscillation crystal is not chipped. thing. A, B sides (see Figure 1) There should be no misalignment.

Number of oscillations: 4.4MH2 to 4.389MH2 (Table 2) As shown in the table above, all the numbers of oscillations passed the test, and there was no variation in the number of oscillations of ±10. It was within OKC. There is no cracking, chipping, or chipping on the body of the oscillating crystal, and there is one small crack on the tip, but it does not affect the oscillation. A high-quality product with a low defect rate and no misalignment on the AB side was completed in 35 hours.

In experiments, 2 spherical continuous polishing cylinders were used for 1 6OR cylinder.
, 500 pieces were put in and polished, but it was calculated to be 4,000 per piece.
It is possible to polish 0 sheets. This barrel polishing machine has 1 cylinder and 3 cylinders, and can be equipped with 4 tanks for a total of 12 cylinders. Therefore, the total number of objects to be polished per degree is 48,000.
It is possible to polish 0 pieces, which is twice as many as the spherical single unit type.

The effects of the present invention could be confirmed.

[Experimental Example 2] "Experiment Conditions" Dimensions of full-surface spherical continuous polishing cylinder (40%R x 10 consecutive balls) x 400%LO Inclination angle of the cylinder 2 degrees ORotary drum rotation speed 80RPM to 1100RP ・Object to be polished (Single crystal piece) Dimensions 8.2% x 2.2% Thickness 0.5% Quantity 2,000 pieces 0 Abrasive green carbon (SIC type abrasive) GC# soo 15g "Operating conditions" Replacement of abrasive - The polishing time and intermittent operation time were as shown in Table 3 below.

A single crystal piece was polished under the above experimental and operating conditions,
From among the polished products, we selected 20 that were dyed in color so that they could be identified before polishing, and examined their appearance and oscillation frequency.

As a result, the result was something like the fourth tragedy.

Note that the quality acceptance criteria for the oscillation crystal are the same as in [Experimental Example 1] above.

Number of oscillations: 3.5 to 3.486 MH2 (Table 4) As shown in "-", the number of oscillations is ±l0, which is the criterion for passing.
All oscillations were within KC and passed.

There is no body cracking, chipping or chipping of the object to be polished (quartz single crystal piece), there is no cracking or chipping at the tip, there is no misalignment of the AB plane,
A high-quality product with a low defect rate was completed in 40 hours.

In the experiment, 2 for one spherical continuous polishing cylinder 4OR
With this barrel polishing machine, it is possible to load 120 pieces. j, one (40 objects to be polished at a time)
,000 sheets can be polished, and 3.
Three times the amount can be polished.

The effects of the present invention could be confirmed.

[Brief explanation of the drawing]

Figure 1 Oscillation crystal (quartz single crystal piece) (1) Flat rod-shaped oscillation crystal (2) Strip-shaped /1 (3) Spindle disk shape // (a) Oscillation crystal assembly material before polishing (cross-sectional view, plane figure)(
b) l! Polished finished state (cross-sectional view, plan view) Fig. 2 Polishing cylinder ■ Spherical single cylinder Cross-sectional view ■ Spherical double cylinder // ■ R-mounted cylindrical cylinder〃 ■ Cylindrical cylinder 〃 Fig. 1 and 2 above The figure is for explaining the embodiment. Fig. 3 Fully spherical continuous polishing cylinder of the present invention ■ Cross-sectional view of the above-mentioned polishing cylinder ■ Diagram for explaining the principle of spherical polishing Fig. 4 Barrel polishing device according to the present invention ■ Detailed front internal sectional view with some parts omitted ■ - Detailed internal cross-sectional view of the side with parts omitted Description of main parts 5 Rotary drum 6 Rotating shaft 15 Multiple bully (fixing member for cylinder receiving shaft) 2
1 Cylinder receiver 21a Cylinder one receiver rotating shaft 21e Cylinder receiver center shaft 24 V pulley 25 V belt (transmission member) 26 Intermittent operation control device 27 Intermittent forward rotation, reverse rotation device 28 Cylinder receiver stirring device 29 Transmission device (using an inverter) 30 Intermittent cycle setting device 31 Total operation time setting device 32 Intermittent operation drive device

Claims (1)

[Scope of Claims] An intermittent rotation drive device that rotates intermittently by adjusting predetermined operation and stop using a timer, a device that also performs forward rotation and reverse rotation, and a rotary drum rotated by the intermittent forward rotation and reverse rotation drive device; A cylinder holder is attached to the outer periphery of the rotary drum so that the center axis thereof is inclined at a predetermined angle to a plurality of rotating shafts arranged parallel to the rotating shaft of the rotary drum; a cylinder receiver rotation fixing member that is fixed coaxially with the shaft and connected to each of the cylinder receivers via a transmission member, and that rotates each of the cylinder receivers as the rotary drum rotates; and this fixing member. By slightly changing the ratio of the diameters of some of the multiple pulleys and the cylinder receiver V-pulley, the cylinder receiver was displaced. It was attached to the cylinder receiver so that its center axis coincided with or was parallel to the center axis of the cylinder receiver. A polishing cylinder containing an abrasive material and an object to be polished is installed inside the continuous polishing cylinder, which is entirely spherical and has the required processing curved surface and curvature. By rotating this cylinder support and the polishing cylinder during the stop time to uniformly stir the object to be polished inside the polishing cylinder, the object to be polished can be uniformly polished to the same curvature as the required curved surface. . A barrel polishing device characterized in that it is equipped with a fully spherical continuous type polishing cylinder in which the entire inner surface of the polishing cylinder is formed to have the curvature of a required processing surface.