JPS6057991B2 - Fluid barrel processing equipment with work guide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluidized barrel processing device equipped with a hard base barrel tank, and in particular, works can be uniformly polished in the media in the barrel tank, and the polished surface can be polished evenly. The present invention relates to a fluidized barrel processing device from which a workpiece can be easily taken out.

One type of barrel processing device is a fluidized barrel processing device. This fluidized barrel processing device is equipped with a solid barrel tank having a cylindrical side wall and a rotating bottom, and when the rotating bottom is driven to rotate, the media housed in the barrel tank is made to flow. It is constructed so that the workpiece mixed in the same media is polished. Although such a barrel processing device has high polishing efficiency, it has various disadvantages related to taking out the workpieces mixed in the media.

That is, the media and workpieces are discharged into the packet through the discharge port provided on the side wall of the barrel tank, and
A type of barrel processing device is provided in which the packet conveys media and workpieces to a sorting sieve provided on a barrel tank, but such a barrel processing device requires a packet and a mechanism for lifting and lowering the packet. As a result, the equipment becomes large and expensive, and the workpiece sorting process takes a long time, which reduces the processing capacity of the equipment.Furthermore, the workpiece surface may be scratched by falling media and workpieces when they are ejected. There were drawbacks such as:

On the other hand, there is a barrel processing device of the type that discharges the media and workpieces in the barrel tank by tilting a rotatably supported barrel tank. Since the tank is placed at a high position and a mechanism for tilting the barrel tank is required, the equipment becomes large and expensive.In addition, the barrel tank must be tilted slowly to avoid media scattering and scratches on the workpiece surface. In order to completely drain the media in the tank, the tank must be tilted nearly 180 degrees, so the draining process takes a lot of time, and in some cases takes up the entire cycle time. This accounted for nearly half of the total, and was a factor hindering improvements in processing efficiency.

Furthermore, as the compound solution is discharged as the barrel tank rotates, this spills into the surrounding area, worsening the working environment, and requires a large-scale mechanism to return the media once discharged to the barrel tank. It had various drawbacks. These drawbacks are due to the fact that a large amount of media is also taken out from the vacuum tank in order to sort out the work from the media, whereas it is originally necessary to take out only the work from the media. Therefore, in such conventional barrel processing equipment, automatic handling of the workpiece, which is desired in the production process, is extremely difficult.

Note that Japanese Patent Publication No. 1558/1983 describes an apparatus in which a support rod holding a workpiece at one end is inserted into a barrel tank, the workpiece is positioned in a media, and the workpiece is polished.

According to this, since the workpiece held by the support rod can be pulled up together with the support rod, there is no need to take out the workpiece by discharging the workpiece together with the media from inside the barrel tank, and the above-mentioned drawbacks are solved. However, this conventional technology is a technology for a so-called gyro-type barrel processing device in which the media in the barrel tank does not flow and rotates together with the barrel tank, and the workpiece, which is held at one end of the support rod in a fixed posture, is placed in the media. The media is supported in a substantially fixed position, and the media is moved relative to the work.

Therefore, the workpiece moves freely to various parts of the flow ring with the flow of the media, and the entire circumferential surface is efficiently and uniformly polished by the polishing action of the media whose direction of relative movement changes every moment. The above-mentioned conventional technology is difficult to apply to a fluidized barrel processing apparatus because the advantage of the fluidized barrel processing apparatus in that the process is performed is lost. The present invention was made against the background of the above-mentioned circumstances, and its purpose is to be able to quickly take out polished workpieces from the media in the barrel tank without damaging their surfaces, and to The object of the present invention is to provide a small and inexpensive fluidized barrel machining device that is capable of uniformly polishing various parts of the surface of a workpiece.

Embodiments of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, reference numeral 10 denotes a rigid barrel tank, which includes a cylindrical side wall portion 12 and a rotating disk 14 disposed at a lower position inside the side wall portion 12 and forming a rotating bottom portion.

The rotating disk 14 is slightly inclined so as to rise toward the outer periphery, and a rotating shaft 16 is provided below the center thereof. The rotating shaft 16 is rotatably supported by a bearing device 17 provided on a bottom plate integrally formed with the side wall 10, and a pulley is fixed at a predetermined portion of the bearing device 17. The drive motor is connected to the drive motor via a power transmission means such as a belt wrapped around the drive motor. Inside the barrel tank 10, a guide wire 18 is provided as a guide member that holds the annular workpiece and guides its movement.
is installed.

The guide wire 18 is formed by bending a single wire as shown in FIG.
0, a workpiece take-out end part 22 and a coiled part 24 connecting these parts. The workpiece supply section 20 is arranged so as to penetrate below the road through the inner peripheral side portion of the media flow ring 26 formed in the barrel tank 10, and its lower end is located immediately above the rotating disk 14. .
Further, its upper end projects upward from the barrel tank 10, and a disk-shaped clamp portion 28 is provided at the projecting end.
The part continuous to the work supply section 20 rises along the flow direction of the media 54 near the rotating disk 14 as it leaves the lower end of the supply section 20, and after reaching the vicinity of the side wall section 12, the section continues to the same side wall section. It is formed as a coil-shaped portion 24 that ascends while turning along 12. The coiled portion 24 that reaches the upper end of the flow ring 26 formed within the barrel tank 10 then continues to a workpiece removal end 22 that extends linearly upward, and this removal end 22 is connected to the upper end of the flow ring 26 formed within the barrel tank 10. A disk-shaped clamp section 30 is provided at the end of the upwardly projecting portion, similar to the workpiece supply section 20 . Above the workpiece takeout end 22 is the workpiece takeout end 22.
A clamp device 32A is provided to clamp the.
This clamp device 32A has an elevating cylinder 36A fixed on a fixed beam 34A, and a support plate 40A is fixed to the tip of a piston rod 38A extending downward from the elevating cylinder. A cylindrical member 42 is provided above the support plate 40A.
Further above A, a clamp cylinder 44A is disposed. The piston rod 46A of this clamp cylinder 44A is connected to the cylindrical member 46 via a cam mechanism (not shown).
A is operatively engaged. This cam mechanism is composed of a cam groove provided on either the piston rod 46A or the cylindrical member 42A, and a protrusion provided on the other side that fits into this cam groove, and the piston of the clamp cylinder 44A. The rod 46A moves up and down while being rotated by the cam mechanism. A claw plate 48A is located below the piston rod 46A.
It is fixed so as to protrude to the side of A, and the support plate 40
At the lower end of A, there is a fixed claw 5 which forms a pair with the claw plate 48A and clamps the clamp part 30 of the workpiece removal end 22 from both upper and lower sides.
2A is fixed via a spacer 50A. Incidentally, the claw plate 48A is provided with an opening groove into which the workpiece take-out end portion 22 is inserted from the side, so that substantially the entire clamp portion 30 can be held therein. Note that the work supply section 20
A clamp device 32B is also provided above, and this clamp device 32B is similar to the club device 32A described in detail above.
Since the configuration is similar to that of the above, the reference numeral A of each part will be changed to B to indicate the correspondence relationship, and the explanation will be omitted.

Next, to explain the operation of the above device, first, with the workpiece take-out end 22 of the guide wire 18 being clamped by the clamping device 32A, the rotary disk 14 is driven to rotate in the direction of arrow P in FIG. 1 by a motor (not shown). be done.

Then, the media 54 in the barrel tank 10 rotates with the rotating disk 14, and centrifugal force acts on it, causing the media 5
4 is strongly pressed against the side wall portion 12, and the side wall portion 12
An annular flow ring 26 is formed along the . The movement of each part of the media 54 in the flow ring 26 will be briefly explained below.
4 directly receives the rotational force of the rotating disk 14 and is turned vigorously in the direction of rotation. At this time, since a strong centrifugal force acts on the media 54, the media 54 is moved to the outer periphery of the barrel tank 10 while rotating in the rotational direction of the rotating disk 14. The media 54 that has reached the outer periphery then moves to the side wall 1
2, but at the same time, it is pushed upward along the side wall portion 12 by the media 54 that are pushed one after another from behind. In the course of such movement, the media 54 reaches the upper end of the flow ring 26 while reducing its swirling speed, and then, by the action of gravity and being pushed by the following media 54, the inner diameter part of the flow ring 26 It gently slides down until it reaches its lower end, and then receives the centrifugal force from the rotating disk 14 again, repeating the above-mentioned cyclical motion. In this state, the annular work to be subjected to the next barrel polishing is fitted into the work supply section 20 on the guide wire 18.

When the workpiece is fitted, the clamping device 32B is activated and the clamping section 28 of the workpiece supplying section 20 is clamped in a fixed position by the device 32B. To explain the operation of the clamp device 32B in detail, first, the piston rod 38B is pushed out, the support plate 40B fixed thereto is lowered, and the fixed claw 52B comes into contact with the upper surface of the clamp part 28. I am made to do so. In this position, the piston rod 46B of the clamp cylinder 44B then
Together with the claw plate 48B at the tip, it is rotated and pulled up by a cam mechanism (not shown), bringing the claw plate 48B into strong contact with the lower surface of the clamp portion 28. And this nail plate 48
The clamp portion 28 is clamped from both sides by the fixing claws 52B and the fixing claws 52B to hold the clamp portion 28 in a fixed position. Incidentally, the state of the clamp device 32B at this time is the same operating state as the clamp device 32A shown in FIG. Now, the workpieces fed into the workpiece supply section 20 descend along the supply section 20 and reach the upper end of the flow ring 26 .

Since the work supply section 20 is located at the inner peripheral side of the flow ring 26, that is, at the part where the media 54 slides downward under its own weight, the work that has entered the flow ring 26 is then moved vertically in a straight line. It descends downward along the work supply section 20 that extends to reach the lower end of the flow ring 26 . The workpiece that has reached the lower end is exposed to the flow of the media 54 that moves vigorously in a spiral motion on the rotating disk 14, but the workpiece supply section 2
As described above, the part that transitions from the lower end of the workpiece to the coiled part 24 is formed along the flow direction of the medium 54, so the workpiece that has reached the lower end of the workpiece supply section 20 continues to move this transitional part to the media 54. It is smoothly carried by the flow of 54 and reaches the vicinity of the side wall portion 12. The workpiece that has reached the vicinity of the side wall portion 12 is then subjected to the abrasive action of the media 54 that rises along the side wall portion 12, and is polished to the coiled portion 24 due to the motion component of the media 54 in the rotational direction of the rotating disk 14. It is carried upward along the flow ring 26 and reaches the upper end of the flow ring 26. The workpiece is subjected to a predetermined amount of polishing action until it reaches this upper end position. Note that the amount of polishing applied and the time required for the workpiece to reach the workpiece unloading end 22 from the workpiece supply section 20 can be determined by changing the inclination angle of the coiled section 24 of the guide wire 18, the distance from the side wall section 12, etc. It can be adjusted by When the workpiece reaches the end of the coiled part 24 located at the upper end of the flow ring 26,
Next, the clamping by the clamping device 32A is released, and the workpiece take-out end 22 is left in a free state.

The operation of the clamping device 32A at this time follows exactly the opposite process to the operation of the aforementioned clamping device 32B during clamping. That is, first, the claw plate 48A is rotated while being lowered together with the piston rod 46A of the clamp cylinder 44A,
As a result, the pressing action of the claw plate 48A is released. If the piston rod 38A of the lifting cylinder 36A is pulled up subsequently or in parallel with this, the clamping by the clamping device 32A is released. When the workpiece take-out end 22 becomes free in this way, the workpiece located at the lower end of the workpiece take-out end 22 is removed. It is pulled up from the barrel tank 10 by a predetermined extraction device. Then, the workpiece take-out end 22 is moved to the clamping device 3.
2A, the workpiece supply section 20 is brought into a free state, and the press processing of one workpiece is completed. In this way, the above device guides the movement of the workpiece within the media flow ring 26 and guides it to a predetermined position at the upper end of the flow ring 26 in the final stage, and the polished workpiece can be easily taken out as it is. It will be done.

Therefore, there is no need for special sorting work, and there is also no need to tilt the barrel tank, making it possible to significantly shorten processing time and increase production efficiency. In addition, problems such as scratches on the workpiece and deterioration of the working environment due to scattering of compound solution, which were caused by conventionally discharging the workpiece by tilting the barrel tank, are resolved, and the barrel tank 1
Since there is no need for a large-scale mechanism for tilting the barrel 2 or for returning the ejected media to the barrel tank, the device itself is small and inexpensive.

In addition, the workpiece inside the flow ring is carried by the flow of media and is polished in the process without any force, so that each part of the surface can be finished uniformly and in good condition. Furthermore, in the above device, when the workpiece is taken out, the workpiece is located at the uppermost part of the flow ring, so the workpiece takeout member equipped with a workpiece hooking member, an electromagnet, etc. is inserted into the flow ring against the resistance of the media. There is no need to penetrate deeply,
Therefore, since the operating stroke is also small, there is an advantage that the take-out device can be made smaller.

Note that the guide member that guides the movement of the workpieces in the barrel tank can be modified as necessary, such as by making the workpiece feeding and unloading ends inclined to some extent.

In addition to the above-mentioned support device configured to clamp both ends of the guide member alternately, the support device clamps one end of the guide member,
For example, clamp devices that can grip the workpiece supply section from the sides are provided in two stages, upper and lower, and the lower clamp device grips the workpiece supply section, while the upper clamp device is released and the workpiece is removed from the upper end of the workpiece supply section. It is also possible to use an arrangement in which the upper clamping device is then closed while the lower clamping device is released to allow the workpiece to be lowered.

In short, any support device is sufficient as long as it can support at least one end of the guide member and keep the coiled portion floating above the inner surface of the barrel. As described in detail above, the barrel processing device according to the present invention includes a rigid barrel tank having a side wall portion and a rotating bottom portion, and the media placed in the barrel tank flows as the rotating bottom portion rotates. A barrel device for polishing a workpiece mixed into the flowing ring by forming a flowing ring along the inner circumferential surface of the side wall portion, the barrel device comprising: A work supply part is arranged in the vertical direction so as to enter the inner circumferential side of the flow ring, and the work supply part is wound upwardly in the rotational direction of the rotating bottom part to form a coil shape, and the lower end part An annular workpiece that is fitted onto the workpiece supplying section and has a coiled part that is continuous with the lower end of the workpiece supply part, and a workpiece take-out end that is continuous with the lower end of the coiled part. (2) a guide member that guides the media toward the workpiece take-out end as the medium flows; A support device that floats the workpiece from the inner surface of the barrel tank and holds it in the flow ring; and a workpiece guiding device.

Such a workpiece guiding device allows the workpiece to move to various parts within the flow ring while appropriately regulating the movement of the workpiece caused by the media, and furthermore, the workpiece after polishing is inevitably moved to the workpiece guide. Guide the workpiece so that it reaches the workpiece removal end of the member.

As a result, the advantage of fluidized barrel processing equipment, which is that it can efficiently polish the entire circumference of the workpiece, is not lost, and the task of sorting polished workpieces is no longer required, allowing for smaller barrel processing equipment and processing. Not only is the time significantly reduced, but also problems such as scratches occurring during workpiece ejection and deterioration of the working environment are eliminated.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view of a barrel processing apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view of a guide line in FIG. 1.

Claims (1)

[Claims] 1. Equipped with a rigid barrel tank having a side wall part and a rotating bottom part,
The media placed in the barrel tank is caused to flow as the rotating bottom rotates to form a flow ring along the inner circumferential surface of the side wall, and the workpiece mixed in the flow ring is polished. The barrel machining device has a work supply section that has a longitudinal shape and is arranged in a vertical direction so that its lower end protrudes into the inner circumferential side of the flow ring, and that rises as it progresses in the rotational direction of the rotating bottom section. a coiled part that is wound to form a coil shape, the lower end of which is connected to the lower end of the work supply section; and a workpiece that is connected to the upper end of the coiled part. a guide member having a take-out end and guiding an annular workpiece fitted onto the workpiece supplying part toward the workpiece takeout end as the medium flows; the workpiece supplying part of the workpiece guiding member; A workpiece guide comprising: a support device that supports at least one of the workpiece take-out ends and that floats the coiled part from the inner surface of the barrel tank and holds it within the flow ring. Fluid barrel processing equipment with equipment.