JPH1071554A - Polishing barrel for barrel finishing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a polishing barrel compact with a simple stucture which can lock a lid body accurately to a barrel body, even through the barrel body consists of an elastic material. SOLUTION: While plural flanges 11 are extended to parts near the opening at the outer periphery of the trunk of a barrel body 10 which consists of an elastic material, in order to form the notches 11a each other, plural bearings 22 corresponding to the notches 11a are provided on the peripheral edge of the lid body 10b, screw rods 23 screwing eccentric cams 24 which can pass the notches 11a at the shaft tips are inserted and pivotally supported on the bearings 22, the lid body 10b is covered to make the eccentric cams 24 pass the notches 11a when the lid body 10b is installed and removed, and when the lid body 10b is fastened after its setting, the lid body 10b is rotated to the position where the eccentric cams 24 are abutted to the flanges 11, and the screw rods 23 are rotated so as to fasten the lid body 10b to the flanges 11 by the eccentric cams 24 abutting to the side wall of the barrel body 10a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing tank for a barrel polishing machine.

[0002]

2. Description of the Related Art In a barrel polishing machine, it is necessary to lock a lid covered at an opening of a tank body so that a mass does not fly out of a polishing tank during a polishing operation. Each of the mechanical polishing tanks has a complicated lock mechanism, requires time and effort for its operation, and is expensive. In particular, if an attempt was made to make the tank body made of elastic polyurethane resin plastic in order to reduce the weight and cost of the polishing tank, complete locking would not be possible with the conventional locking mechanism, resulting in a more complicated mechanism and a compact structure. There are also problems, such as the inability to convert.

[0003]

The problem to be solved by the present invention is to eliminate the above-mentioned problem and to easily and accurately lock the lid to the tank even if the tank is made of an elastic material. An object of the present invention is to provide a polishing tank for a barrel polisher that has a simple structure and can be made compact.

[0004]

A polishing tank for a polishing machine according to the present invention which has solved the above-mentioned problems has a plurality of rigid flange portions near an opening on the outer periphery of a body portion, which are notched between each other. A tank body made of an elastic material stretched outward so as to be formed, a lid body provided with a plurality of short cylindrical bearings corresponding to the cutouts on the periphery thereof, and an insertion shaft inserted into the bearing. It consists of a screw rod with an eccentric cam that can pass through the notch at the tip of the shaft part that is supported, and the eccentric cam at the tip of each screw rod attaches the notch when the lid is attached to and detached from the tank body. The lid is positioned at a position where it can pass, and at the time of fastening after the lid is applied, the eccentric cam rotates the lid to a position behind the flange and rotates the screw rod to contact the side wall of the tank and the flange. The lid is fastened to the flange by an eccentric cam that is in contact with it. It is intended. In such a polishing tank for a sanding machine, as a lid, a lid main body made of an elastic material and a reinforcing metal ring having an L-shaped cross section fixed so as to cover a portion extending from the peripheral surface to the peripheral edge of the lid main body. The invention in which a plurality of bearings are fixed is an invention according to claim 2, and in these inventions, a metal ring having an L-shaped cross section in which a plurality of cutouts are disposed on a blade side as a tank body. 4. A method in which the wing portion is insert-molded into a tank body made of an elastic material so that the wing portion extends outward from the outer periphery of the body portion, and the notch between the wing portions is used as a flange portion.
Further, in each of the above-described inventions, the invention according to claim 4 is provided with a thick flange integrally provided on the outer periphery of the bottom of the tank body.

[0005]

Next, a preferred embodiment of the present invention will be described in detail with reference to the drawings. A turret 1 rotates on a vertical plane. The turret 1 has a bearing 1a mounted on a shaft 3a protruding from a front surface of a column 3 erected on a base 2.
Mounted through. The outer periphery of the turret 1 is a pulley 1b, and the turret 1 is rotated by a belt 5 wound around the pulley 1b and a pulley 4a of a motor 4 installed on a base 2. Turret 1
Is provided with two bearings 1c, 1c concentrically opposed to each other, and a polishing tank holder 6 is attached to a shaft 1d which is supported by each bearing 1c. The polishing tank holder 6 rotates on its own axis. The turret is rotated by a toothed belt 1f wound between a toothed pulley 1e provided at a rear portion of a shaft 1d and a toothed pulley 3b provided on the shaft 3a so as to revolve. It is configured to be rotated during one rotation.

[0006] The polishing tank holder 6 is provided with five substantially Ls on the periphery of the rotating disk 7 bolted to the front surface of the shaft 1d.
A shaped support arm 8 is arranged concentrically, and an inner part thereof is formed in a tank holding space in which the polishing tank 10 is loosely held from the front and loosely held. A lock mechanism 9 for clamping the polishing tank 10 fitted in the tank holding space is attached to the two bases on the left and right. The illustrated lock mechanism 9 has one end formed on a locking portion 13a with a roller 12 which is engaged with and disengaged from a flange portion 11 formed on the outer peripheral surface of the polishing tank 10, and the other end formed on an operation handle portion 13b. Bell crank 13
Is interposed in a gap for intervention of a bell crank formed on a substrate 14 attached to the outside of the support arm 8 and is connected with a pin to pivotally support the support arm (8). A safety device 15 for preventing the bell crank 13 from pivoting is incorporated so that the bell crank 13 is self-locked by a toggle mechanism. The safety device 15 shown in FIG. A pin 16 is inserted into a pin hole 15a provided at a rear position from the outside of the substrate 14 so as to be constantly urged forward by a spring 17 so as to be able to protrude and retract. It is attached. Reference numeral 19 denotes a detent stopper provided on one of the lower support arms 8. The detent stopper 19 comes into contact with a part of a lid lock mechanism 20 of the polishing tank 10 so that the polishing tank 10 does not rotate during polishing. Reference numeral 21 denotes a fixing plate for suppressing the substrate 14 to which the lock mechanism 9 is attached. The fixing plate 21 suppresses the rattling of the substrate 14 to prevent the operation of the bell crank 13 from becoming unstable. ing.

On the other hand, as shown in FIGS. 1 to 3, the polishing tank 10 according to the present invention is made of a tank body made of a wear-resistant and strong elastic material such as a polyurethane resin having a rectangular tube inside. 10a and a lid 10b made of the same material,
In the portion of the tank body 10a near the opening on the outer periphery of the body, four flange portions 11 having rigidity are stretched outward so as to form notches 11a therebetween. The flange portion 11 is made of a metal ring having an L-shaped cross section in which four notches 11a are arranged on the wing side portion, and the metal ring is stretched outward from the outer periphery of the trunk portion. The flanges 11 are formed between the notches 11a, 11a at the wing sides by insert molding in the tank body 10a. In addition, the lid 10
b is the bearing 2 of the lid 10b in which a plurality of short-cylindrical bearings 22 corresponding to the notches 11a are arranged outward at the periphery.
2, an eccentric cam 24 capable of passing through the cutout 11a is screwed to the shaft of a screw rod 23 having a knob 25 at one end. The lid 10 shown in FIG.
b, a reinforcing metal ring 10c having an L-shaped cross section is fixed to a lid body made of a tough elastic material having wear resistance such as polyurethane resin so as to cover a portion extending from the peripheral surface to the peripheral edge of the lid body. This reinforcing metal ring 1
0c, a plurality of bearings 22 are fixed in advance, and the reinforcing metal ring 10c has the screw rod 23 inserted and supported as described above. The screw rod 23 and the flange 1
1 constitutes the lid lock mechanism 20. And
When the lid 10b is attached to and detached from the tank 10a, the lid 10b is positioned at a position where the eccentric cam 24 at the axis of each screw rod 23 can pass through the notch 11a. The eccentric cam 2 is rotated by rotating the lid 10b to a position where the cam 24 comes into contact with the flange portion 11.
The screw rod 23 is rotated to a position where the bit 4 bites into the tank body 10a, and the lid 10b is fastened to the flange portion 11. In addition, reference numeral 26 denotes a sealing material on the peripheral side of the back surface of the lid 10b.

[0008] In the above-mentioned structure, first, an object to be polished, a medium, a compound, water, and the like are charged into a tank body 10a of the polishing tank 10 detached from the polishing tank holder 6, and the lid 10b is attached to each of them. Eccentric cam 24 at the tip of screw rod 23
The cover 10b is turned to the right by 45 ° until the eccentric cam 24 is at a position behind the flange 11, and the knob 25 When the screw rod 23 is rotated by rotating the eccentric cam 24, the eccentric cam 24 comes into contact with the side wall of the tank body 10a, and the eccentric cam 24 moves to the flange portion 11 by the subsequent rotation, and the tank body 10a Of the lid 10b by the eccentric cam 24 biting into the side wall of the
Will be fastened to the flange 11.

In this manner, the object to be polished, the medium, the compound, the water, etc. are put into the tank body 10a, and the lid 10
b, the lid 10b is bent in the L-shaped support arm 8 in the inner tank holding space surrounded by the support arm 8 of the polishing tank holder 6 arranged below the turret 1. It is loosely fitted from the front end open portion until it comes into contact with the leg portion. Thereafter, the polishing tank 10 is slightly rotated counterclockwise to bring the detent stopper 19 into contact with a part of the lid lock mechanism 20 so that the polishing tank 10 is Avoid rotation. In this case, the polishing tank holder 6 is not cylindrical, and a sufficient space is provided between the support arms 8. Therefore, the body of the polishing tank 6 is gripped with both hands and the polishing tank holder 6 is moved to the inside of the polishing tank holder 6. Can be sent to the holding space. Next, the operating handle 13b of the bell crank 13 of the lock mechanism 9 provided on the upper support arm 8 is operated to pivot from the chain line state to the solid line state in FIG. Roller 12 at 13a
Then, the body of the polishing tank 10 is pushed into and brought into contact with and engaged with the flange 11 inserted into the body. At this time,
Since the shaft center of the roller 12 is located to the left beyond the perpendicular of the shaft fulcrum of the bell crank 13, the shaft center of the roller 12 is self-locked with the bell crank 13 having the toggle mechanism. At the time of this self-lock, the safety device 15
The pin 16 is provided with a pin hole 15 provided in the bell crank 13.
a, so that the self-lock of the roller 12 is not released by the rotational force or vibration during polishing. Hereinafter, the same operation is performed to operate the other lock mechanism 9, and the polishing tank 6 loosely fitted in the tank holding space inside the support arm 8 is clamped by the upper left and right lock mechanisms 9, and the polishing tank holder is fixed. 6, the turret 1 and each rotating disk 7 are firmly fitted and fixed.
By rotating the polishing tank 6 while revolving while rotating the polishing tank 6, stable polishing is performed in each polishing tank 10.

After a series of polishing operations is completed, the knob 18 of the safety device 15 is pulled and the pin 16 fitted in the pin hole 15a is pushed under the urging force of the spring 17 so that the pin hole of the bell crank 13 is removed. 15a, and the bell crank 13 is pivoted upward, the roller 12 locked on the flange 11 of the polishing tank 10 is removed, and the polishing tank 1 is removed.
0 is loosely held in the tank holding space inside the support arm 8 so that the polishing tank 10 can be easily removed even if the polishing tank 10 is expanded or deformed by the heat generated by the polishing operation. be able to.

The polishing tub 10 pulled out from the polishing tub holder 6 in this manner is first rotated by turning the knob 25 in the reverse direction to loosen the screw rod 23 and the flange portion 11 of the polishing tub 10 of the eccentric cam 24. Eccentric cam 24
Then, the polishing tank 10 is rotated to the right to dispose the eccentric cam 24 in the notch 11a, and the lid 10b is removed from the tank 10a.
The object to be polished, water, media, and the compound in Oa may be discharged.

[0012]

According to the present invention, as apparent from the above description,
The tank body is made of an elastic material, and a plurality of rigid flange parts are stretched outward so that notches are formed therebetween at portions close to the opening on the outer periphery of the body, while the lid body is provided. Assuming that a plurality of short cylindrical bearings corresponding to the cutouts are arranged outwardly on the periphery thereof, each bearing has a threaded rod having an eccentric cam capable of passing through the cutout at the shaft end. Since the lid is supported, the lid can be attached to and detached from the tank body by positioning the lid at a position where the eccentric cam at the shaft end of each screw rod can pass through the notch, and the fastening after the lid is applied At times, the lid is easily and accurately fastened to the flange simply by rotating the lid to a position where the eccentric cam comes into contact with the flange and then rotating the screw rod until the eccentric cam bites into the tank. And reduce the weight and cost of the polishing tank After which it becomes possible to accurately easily lock as comprising from resilient material, there are various advantages such as mechanisms for simple structure also enables downsizing becomes easy. When the lid is made of a lid main body made of an elastic material and an L-shaped reinforcing metal ring having a plurality of bearings fixed so as to cover a portion extending from the peripheral surface to the surface peripheral edge of the lid main body. In addition to being able to secure the weight and strength of the lid itself, it is easy to manufacture and easy to mass-produce.Furthermore, the tank body is made of an elastic tank body, and a plurality of notches are arranged on the wing side. When the metal ring having an L-shaped cross section is insert-molded so that the wing portion extends outward from the outer periphery of the trunk portion, and the notch between the wing portions is used as a flange portion, production is easy. Not only that, a metal ring having an L-shaped cross section is preferable because it reinforces and holds the opening side of the tank body made of an elastic material. Further, a tank body provided with a thick flange integrally on the outer periphery of the bottom of the tank body is preferable. The bottom side is reinforced and shaped, improving durability and handling. In particular, those having both a thick flange section L-shaped metal ring and the bottom outer periphery as described above, especially the expensive is remarkable. Therefore, the present invention greatly contributes to the development of the industry as a polishing tank for a barrel polishing machine which solves the conventional problems.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of the present invention.

FIG. 2 is a sectional view showing a preferred embodiment of the present invention.

FIG. 3 is a front view showing a preferred embodiment of the present invention.

FIG. 4 is a front view showing a use state of the preferred embodiment of the present invention.

FIG. 5 is a side view showing a use state of the preferred embodiment of the present invention.

FIG. 6 is a partially cutaway side view showing a state of attachment to a polishing tank holder according to a preferred embodiment of the present invention.

FIG. 7 is a front view showing a state of attachment to a polishing tank holder according to a preferred embodiment of the present invention.

FIG. 8 is a partially cutaway front view showing a lock mechanism of the polishing tank holder.

[Explanation of symbols]

 10 Polishing tank 10a Tank 10b Lid 10c Reinforced metal ring 11 Flange 11a Notch 22 Bearing 23 Screw rod 24 Eccentric cam

Claims (4)

[Claims] 1. A tank made of an elastic material in which a plurality of rigid flanges (11) are stretched outward so as to form notches (11a) between the flanges (11) at portions close to the opening on the outer periphery of the trunk. Body (10
a), a lid (10b) in which a plurality of short cylindrical bearings (22) corresponding to the notches (11a) are arranged outwardly on the periphery,
A screw rod (23) screwed with an eccentric cam (24) that can pass through the notch (11a) is attached to the shaft end of the shaft part that is inserted and supported on (22), and a lid body (10a) is attached to the tank body (10a). 10b)
The lid (10b) is located at a position where the eccentric cam (24) at the shaft tip of (23) can pass through the notch (11a), and the eccentric cam (24) has a flange portion (11b ), And the screw rod (23) is rotated by the eccentric cam (24) contacting the side wall of the tank (10a) and the flange (11b). A polishing tank for a barrel polishing machine, wherein a lid (10b) is fastened to a flange portion (11). 2. A lid (10b) comprising: a lid body made of an elastic material; and a reinforcing metal ring (10c) having an L-shaped cross section fixed so as to cover a portion extending from a peripheral surface to a peripheral edge of the lid body. The polishing tank according to claim 1, wherein a plurality of bearings (22) are fixed to the reinforcing metal ring (10c). 3. A tank body (10a) is formed by attaching a metal ring having an L-shaped cross section with a plurality of notches (11a) arranged on a blade side to a tank body made of an elastic material. Insert molding so that it is stretched more outward, cut out (11a), (11
3. The polishing tank for a barrel polishing machine according to claim 1, wherein a) is formed as a flange portion. 4. The polishing tank for a barrel polishing machine according to claim 1, wherein a thick flange is integrally provided on an outer periphery of a bottom of the tank body (10a).