JPH0819958A - Fully automatic centrifugal fluid barrel working device - Google Patents

Abstract

PURPOSE:To provide a horizontal fully automatic centrifugal fluid barrel working device which exhibits excellent work efficiency without deteriorating a work environment. CONSTITUTION:When a planet gear mechanism rotates a disc part, 4 with a revolution shaft, a clamping shaft 62 stored in a rotation shaft 61 is rotated by means of a rotation clamping mechanism 6 (a part of a barrel clamping mechanism) built in the disc part, 4 while setting the revolution shaft as the center. By means of the clamping shaft 62, a barrel is clamped and rotated, and a spring 63 built in the rotation shaft 61 energizes the clamping shaft 62 in the barrel clamping direction. A hydraulic cylinder 8 (the rest of the barrel clamping mechanism) fixed in a carriage displaces an engagingly stopping rod 67 fixed in the clamping shaft 62 in the barrel non-clamping direction so as to release the barrel only when the barrel is attached/removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully automatic centrifugal flow barrel processing apparatus.

[0002]

2. Description of the Related Art A conventional centrifugal flow barrel polishing apparatus has a disadvantage that the actual polishing step is simple and can be completed in a short time, but various operations involved in replacing the contents are complicated and require a long time. It was difficult to clean around the device.
In order to solve this problem, various proposals have conventionally been made as described below.

Japanese Patent Application Laid-Open No. 48-16295 discloses that one end of a plurality of processing cylinders that rotate around a revolving shaft arranged in a horizontal direction is rotatable relative to the tip of a feeder cylinder that rotates integrally with the revolving shaft. It discloses that the feeder cylinder is connected to the other end of the feeder cylinder through a hollow portion in the orbital shaft to one end opening of the orbital shaft, and the work and the abrasive are continuously supplied from the one end opening of the orbital shaft. The polished contents are discharged to the outside from the other end opening of each processing cylinder.

Japanese Patent Application Laid-Open No. 2-78253 discloses that a processing cylinder is rotatably mounted on a revolving turret, and the turret is tilted about a horizontal axis to discharge polished contents in the processing cylinder to the outside. Has been disclosed. JP 55-
In Japanese Patent No. 46822 and Japanese Patent Laid-Open No. 62-152668, a turret fixed to a revolving shaft extending vertically holds a plurality of revolving shafts around the revolving shafts for free rotation.
A pedestal and a lid are provided on each rotation shaft. Then, a processing tank with an upper opening that is filled with unpolished contents is placed on each pedestal, and one of the pedestal and the lid is axially driven by driving a clamp device that can rotate and revolve with the rotation shaft. The upper opening of each processing tank is sealed by sliding the lid, and in this state, the orbiting shaft and each rotating shaft are synchronously rotated to revolve and revolve the processing tank, and after the centrifugal flow barrel polishing performed by it, Slide one of the pedestal and the lid in the opposite direction to remove the lid from the processing tank, remove the polishing-processed processing tank from the pedestal with a handling device, and place a new processing tank on the empty pedestal. The lid is slid in the axial direction again to close the upper opening of each processing tank and the processing tank is pinched in the axial direction, and then the next polishing cycle is performed.

[0005]

However, according to the above two publications, it is not easy to completely remove the polished contents adhering to the inside of the processing cylinder. On the other hand, according to the latter two publications. For example, since the processing tank removed from the apparatus can be cleaned by another department, there is an advantage that removal of polished contents and quantitative input of unpolished contents are easy, but there are still the following disadvantages.

That is, in the clamp mechanism disclosed in Japanese Unexamined Patent Publication No. 62-152668, it is necessary to mount a hydraulic cylinder on the turret (revolution disk) and control the hydraulic pressure supplied thereto, which complicates the hydraulic piping structure. And increase in revolution mass, decrease in rotation speed due to increase in centrifugal force, and
It has a drawback that it is difficult to apply it only to a vertical device in which the revolution axis is formed vertically.

On the other hand, in the clamp mechanism disclosed in Japanese Patent Application Laid-Open No. 55-46822, it is necessary to rotate and revolve a more complicated mechanism, and the rotation shaft needs to suspend the processing tank. It has a drawback that it is difficult to apply it only to the mold device. In such a vertical centrifugal flow barrel polishing apparatus, the processing tank cannot be deepened due to the influence of gravity during rotary polishing, and the processing capacity is limited.

The present invention has been made in view of the above problems, and has a simple structure, is excellent in reliability and durability, can reduce an orbital mass, and has a barrel holding mechanism applicable to a horizontal type device. It is an issue to be solved to provide a centrifugal flow barrel processing device.

[0009]

A fully automatic centrifugal flow barrel machining apparatus of the present invention has a revolution shaft supported by a mount having a pair of discs, connected to a rotary drive source, and a peripheral edge of the revolution shaft. A plurality of pairs of rotation shafts that are rotatably held on the disk portion, a planetary motion mechanism that rotates the rotation shafts in conjunction with the revolution shafts, a workpiece and an abrasive. A plurality of barrels each having an engaging centering portion at both ends and a holding shaft that is axially slidably mounted on each pair of rotation shafts to move back and forth to move the holding shaft and the engagement centering. Barrel clamping mechanism that removably clamps the barrel through the connection with the parts, unloading of the processed barrel released at a predetermined stop phase of the disk part, and loading of the newly mounted unprocessed barrel. With a barrel handling mechanism that divides and
The barrel clamping mechanism is fixed to the frame and a spring that is housed in the rotation shaft and urges the clamping shaft in the barrel clamping direction, and projects from the disc part at a stop phase of the disc part. It is characterized by further comprising a pinch release actuator for displacing the end of the pinching shaft on the non-barrel side to release the barrel.

In a preferred embodiment, a centering pin slidably held in a hole formed at an end of the holding shaft on the barrel holding side and capable of being fitted into a centering recess of the barrel, and the hole. And a centering spring which is housed in the section and biases the centering pin in the barrel holding direction. In a preferred aspect, an end portion of the holding shaft on the non-barrel side of the barrel has a flange portion extending in a radial direction of the revolution shaft, and a rod tip portion of the holding release actuator has the flange portion in a circumferential direction of the revolution shaft. It has a claw that can be moved in and out and that can pull the collar portion in the barrel non-clamping direction.

In a preferred mode, the barrel is composed of a main cylinder portion having an opening in a peripheral wall, a lid portion closing the opening, and a clamp member for pressing the lid portion with the main cylinder portion.
In a preferred aspect, the barrel includes a main cylinder portion and a lid portion that seals the opening thereof. In a preferred embodiment, the device is a vertical device in which a revolution shaft is arranged vertically, and a lid portion for sealing the bottomed barrel is arranged at a tip end portion of the holding shaft.

[0012]

The rotation drive source rotates a revolving shaft having a pair of disks and drives a planetary motion mechanism. The planetary motion mechanism rotates a plurality of pairs of rotation shafts on a parallel axis around the revolving shaft. The barrel clamping mechanism removably clamps the engagement centering portions at both ends of the barrel by advancing and retracting the clamping shafts installed in each pair of rotation shafts. The barrel handling mechanism carries out the processed barrel released from the barrel holding mechanism at a predetermined stop phase of the disk portion, and carries in a newly mounted unprocessed barrel.

Here, the holding shaft of the barrel holding mechanism is urged by a spring built into the rotation shaft to hold the barrel. When the barrel is unclamped, the end of the clamping shaft on the side of the barrel that is not clamped is stopped facing the clamping release actuator. Release.

[0014]

As described above, the fully automatic centrifugal flow barrel machining apparatus of the present invention is accommodated in the rotation shaft together with the holding shaft, and the barrel holding spring for urging the holding shaft in the barrel holding direction and the barrel attachment / detachment. Since it is equipped with a clamping release actuator for barrel clamping that displaces the barrel non-clamping side end of the clamping shaft in the barrel non-clamping direction only at the time, the reduction of the revolution mass and the accompanying miniaturization of the device, barrel clamping The structure of the mechanism is simplified and the reliability is improved accordingly, and the horizontal centrifugal flow barrel machining device is automated.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a fully automatic centrifugal flow barrel processing apparatus of the present invention will be described below with reference to the drawings. 1 is a plan view of the apparatus, FIG. 2 is a front view of the apparatus, and FIG. 3 is a side view of the apparatus. This device is a horizontal type fully automatic centrifugal flow barrel polishing device, in which a bearing stand 11 is arranged at the center of the left and right ends of the gantry 1 in the front-rear direction, and a bearing box 13 fixed on the bearing stand 11 is a revolving shaft 2. Is supported.

A motor (rotational drive source in the present invention) 30 is fixed to the frame 1, and the motor 30 drives the revolution shaft 2 through a belt 39 inside a belt cover 38.
The belt cover 38 is omitted in FIG. A disk portion 3 and a cylindrical portion 4 are fixed to the revolution shaft 2 at a predetermined interval, and six rotation pinching mechanisms 5 are arranged on the disk portion 3 around the revolution shaft 2 so as to be rotatable at equal intervals in the circumferential direction. Has been done. Further, six rotation pinching mechanisms 6 are arranged in the cylindrical portion 4 so as to be rotatable about the revolving shaft 2 at equal intervals in the circumferential direction, and each axis of the rotation pinching mechanism 5 is arranged in each of the rotation pinching mechanisms 6. It is aligned with the axis and parallel to the revolution axis.

The cylindrical portion 4 includes a disc 41 that forms a barrel-holding side, that is, a left end face in FIGS. 1 and 2, and a barrel-non-pinching side, that is, a disc 42 that forms a right end face in FIGS. 1 and 2.
It is composed of a cylinder 43 of which both ends are open and which is sandwiched by the discs 41 and 42, which are fastened by bolts (not shown), and have a planetary gear chamber S (see FIG. 5) formed of a closed cylindrical space therein. are doing.

The rotating and sandwiching mechanisms 5 and 6 sandwich a sealed long cylindrical barrel 7, respectively, and the barrel 7 is revolved and rotated by the rotating and sandwiching mechanisms 5 and 6 as will be described later. In addition, the thick plate-shaped support 1
4 is erected, and the column 14 is provided with a hydraulic cylinder 8 for releasing the barrel clamp. This hydraulic cylinder 8
Is a cylindrical portion 4 having a short-axis closed cylindrical shape that constitutes the barrel holding mechanism in the present invention together with the rotation holding mechanisms 5 and 6.
A planetary gear mechanism (a planetary motion mechanism in the present invention) 9 driven by the revolution shaft 2 while being lubricated in an oil bath is built in the inside of the.

The planetary gear mechanism 9 will be described with reference to FIGS. FIG. 4 is a schematic view showing a radial cross section of the cylindrical portion 4. However, in FIG. 4, the cylindrical portion 4 is schematically shown by a large-diameter circle. A sun gear 91 is rotatably fitted on the revolution shaft 2, and the sun gear 91 is fixed to a bearing stand 11 (see FIG. 1) as described later. The cylindrical portion 4 has three planetary gears 92 that mesh with the sun gear 91.
And a gear train composed of six rotation gears 93 meshing with the planet gears 92 are supported, and the rotation gears 93 are connected to respective rotation shafts 61 described later. Therefore, the revolution axis 2
When the cylindrical portion 4 rotates with it, the planetary gear 92 and the rotation gear 93 revolve around the revolution shaft 2, and the sun gear 91 further rotates.
The rotation gear 93 is rotated via the planetary gear 92 that rotates in mesh with. The rotation gear 93 is set to have the number of teeth such that one rotation is performed once per revolution, and the barrel 7 is always revolved while maintaining a stationary posture.

FIG. 5 is an enlarged view of the axial cross section of the central portion of the cylindrical portion 4. A boss 21 is fitted and fixed to the revolution shaft 2, and a disc 41 of the cylindrical portion 4 is fastened to the boss 21 with a bolt (not shown). Pins 92a are fixed to the disc 41 at equal intervals in the circumferential direction at positions around the revolving shaft 2, and planetary gears 92 are fixed to the pins 92a via a pair of bearings 92c separated from each other by a sleeve 92b. It is supported.

On the other hand, the revolution shaft 2 has sleeves 91a, 91
The sun gear 91 is supported via a pair of bearings 91c separated from each other by b, and the sun gear 91 meshes with each planetary gear 92. On the other hand, a sleeve 94 with a flange is fitted to the revolution shaft 2 at the right side of the sun gear 91, and the sleeve 94 is rotatable relative to the revolution shaft 2 by a bearing 94a. The left end surface of the sleeve 94 has a flange shape and is fastened to the right end surface of the sun gear 91 by a bolt (not shown). The right end portion of the sleeve 94 is a support plate 9 fixed to the bearing base 11.
5 is fitted in the hole 95a and is fixed by a bolt (not shown) or the like, so that the sun gear 91 can pass through the sleeve 94 and the support plate 95 and the bearing stand 11
Fixed to. 94b is a sleeve that separates the bearing 91c from the bearing 94b. The disc 42 on the non-barrel side of the cylindrical portion 4 is supported by the sleeve 94 through the boss 44 and the bearing 44a. 44b is a mechanical seal.

FIG. 6 is an enlarged view of a cross section of the cylindrical portion 4 around the rotation shaft 61 and the rotation pinching mechanism 6. Rotation axis 61
A rotation gear 93 that meshes with the planetary gear 92 is fitted to the
The rotation shaft 61 and the rotation gear 93 cannot be relatively rotated by the sleeve 93a. A boss 46 is fastened to the disk 41 of the cylindrical portion 4 by bolts (not shown), and the boss 46 supports a rotation shaft 61 through bearings 6a and 6b. 6c is a mechanical seal. In addition, cylindrical part 4
A boss 47 is fastened to the circular plate 42 by a bolt (not shown), and the boss 47 is supported by the bearing 6d.
1 is supported. 6e is a mechanical seal.

The rotation pinching mechanism 6 is held by the rotation shaft 61 through a metal bearing 6f so as to be slidable in the axial direction.
2, a connecting rod 66 slidably held in a counterbore hole 61a at the left end of the rotation shaft 61 and fastened to the left end of the holding shaft 61 by a bolt 65, and a rotation shaft 61 wound around the holding shaft 62.
A spring 63 housed in the counterbore hole 61a at the left end of
Barrel support plate 64 fixed to the left end of the connecting rod 66
And a locking rod 67 that is fastened to the right end of the holding shaft 62. Therefore, the barrel support plate 64 is held slidably in the rotation shaft 61 in the rotation shaft 61 through the holding shaft 62, and also rotates and revolves with the rotation shaft 61.

On the end surface of the barrel supporting plate 64 on the barrel supporting side, a cross-shaped projection 64a is provided so as to project from the axial center in the radial direction. In this embodiment, although not shown, both sliding surfaces of the rotation shaft 61 and the holding shaft 62 are provided with guide grooves extending in the axial direction, although not shown, in order to make the holding shaft 62 unable to rotate relative to the rotation shaft 61. Guide projections are provided to be slidably fitted in the guide grooves. Therefore, the barrel support plate 64
Maintains a constant posture together with the rotation shaft 61, and its cross-shaped ridge 64a always extends in the vertical and horizontal directions when stopped. The barrel 7 described later is set in a predetermined posture, and the barrel support plate is set. 64 to the barrel holding side in the axial direction, the
4a is smoothly fitted to the ridge 64a.

The base end of the spring 63 is locked to the rotation shaft 61, and the tip end thereof urges the connecting rod 66 in the barrel holding direction. With this biasing, the locking rod 67 moves the holding shaft 6.
2 to the barrel holding direction, and
Has a left end face thereof in close contact with a right end face of the rotation shaft 61, whereby further displacement of the barrel support plate 64 in the barrel holding direction is prohibited. The rotation shaft 61 is supported by the discs 41 and 42 by bearings so as not to retract in the barrel non-clamping direction (rightward) by the reaction force of the spring 63.

By the rotation pinching mechanism 6 described above, the barrel support plate 64 is urged by the spring 63 in the barrel pinching direction to pinch the barrel 7, and the rotation gear 93 is driven by the planetary gear 92 to pinch the rotation shaft 61. The shaft 62 and the barrel support plate 64 are rotated and revolved. On the other hand, the locking rod 67
Has a large-diameter left end portion 67a, a small-diameter central portion 67b, and a large-diameter right end portion 67c, and a hydraulic cylinder 8 described later connects the flange-shaped right end portion 67c of the locking rod 67 to the barrel non-clamping side (right side). Direction, the barrel support plate 64 retreats against the bias of the spring 63, and the holding of the barrel 7 by the barrel support plate 64 is released.

FIG. 7 is an enlarged view of a cross section of the disk portion 3 around the rotation pinching mechanism 5. A boss 31 is fastened to the disk portion 3 by bolts (not shown), and the boss 31 supports the rotation shaft 51 through a pair of bearings 31a.
31b and 31c are spacers for isolating the pair of bearings 31a. Reference numeral 32 denotes a cover plate with a hole for closing the opening of the boss 31 on the side of the barrel that is not sandwiched by the barrel, and is fixed to the boss 31.

The rotation pinching mechanism 5 is held in the rotation shaft 51 via a metal bearing 51a so as to be slidable in the axial direction, and the rotation shaft 51 is wound around the rotation shaft 51 and accommodated in the hole of the rotation shaft 51. Spring 53, a barrel support plate 54 fixed to the right end of the holding shaft 52, and a counterbore hole 52a of the holding shaft 52.
And a bolt 56 screwed to the holding shaft 52 along the axis of the holding shaft 52, and a centering member slidably fitted in the counterbore 52 a and slidably fitted to the bolt 56. Pin 55
And a counterbore 52 a of the holding shaft 52 wound around a bolt 56.
And a locking rod 57 that is fastened to the left end of the holding shaft 52.

The base end of the spring 53 is locked to the rotation shaft 51, and the tip end thereof urges the stepped surface of the holding shaft 52 in the barrel holding direction. As a result, the holding shaft 52 is always urged in the barrel holding direction, but the locking rod 57 is
The gripping shaft 52 and the barrel support plate 54 are locked to the left end face 51b of the shaft, and further displacement in the barrel gripping direction is prohibited.

The locking rod 57 has a large diameter right end portion 57a,
When the hydraulic cylinder 8 to be described later has a small-diameter central portion 57b and a large-diameter left end portion 57c and pulls the flange-shaped left end portion 57c of the locking rod 57 into the barrel non-clamping side (left side),
The barrel support plate 54 retracts against the bias of the spring 53, and the barrel support plate 54 releases the clamp of the barrel 7.

The base end of the centering spring 58 has a holding shaft 52.
, And the leading end thereof biases the centering pin 55 in the barrel holding direction. The biased centering pin 55 is locked to the large-diameter head of the bolt 56, thereby preventing the centering pin 55 from further displacing in the barrel holding direction. Thereby, the centering pin 5
5 is urged in the axial direction to fit into a centering recess (described later) of the barrel 7 when the barrel 7 is clamped.

By the rotation pinching mechanism 5 described above, the barrel support plate 54 is biased by the spring 53 in the barrel pinching direction to securely pinch the barrel 7. Further, since the centering pin 55 can be retracted in the barrel non-clamping direction by the centering spring 58, the rotation pinching mechanism 5 can easily match the axis of the rotation pinching mechanism 5 and the barrel 7 when the barrel 7 is pinched. Becomes (centering is performed).

In this way, the barrel support plate 54 is urged in the barrel holding direction by the spring 53, and
And can rotate and revolve with the barrel 7. When the hydraulic cylinder 8 to be described later draws the locking rod 57 toward the non-clamping side of the barrel, the barrel support plate 54 retreats against the bias of the spring 53, and the clamping of the barrel 7 by the barrel support plate 54 is released. .

Next, the hydraulic cylinder 8 for releasing the pinching of the barrel
This will be described with reference to FIGS. 8 and 9. FIG. 8 shows a plan view of the single-acting hydraulic cylinder 8, and FIG. 9 shows a front view thereof. The hydraulic cylinder 8 includes a cylinder 81 fixed to the column 14, a pair of guides 83 before and after the cylinder 81, and the cylinder 8
1, a plate 82 fixed to the tip of the rod 82, and a pair of holding plates 85 fixed to the upper and lower end surfaces of the plate 84 and extending in parallel and horizontally in the barrel holding direction. The claw 86 is provided at the end of the clamping plate 85 on the barrel clamping side so as to project in a direction facing each other. 8 and 9, the pair of holding plates 85 of the hydraulic cylinder 8 is the locking rod 57.
(Or 67) has a posture in which the left end portion 57c (or the right end portion 67c) can be vertically sandwiched, and in this state, the rod 8
2 is retracted, the pair of holding plates 85 causes the left end portion 57c (or the right end portion 67) of the locking rod 57 (or 67).
c) is pulled in the non-clamping direction of the barrel, whereby the distance between the barrel support plates 54 and 64 is increased and the barrel support plate 5
Barrel 7 is released from 4, 64.

The important thing here is the holding plate 8
The locking rods 57 and 67 can freely enter and exit in the circumferential direction of the revolving shaft 2 between the pair of holding plates 85 in a state where the locking rods 5 are not displaced in the barrel non-holding direction. As a result, the sandwiching plate 85 does not hinder the orbital movement of the locking rods 57 and 67. In order to release the barrel 7 scheduled to be released from the rotation holding mechanisms 5 and 6, the revolving shaft 2 is stopped at a predetermined stop phase, and the locking rods 57 and 67 fastened to the predetermined holding shafts 52 and 62 are released. Adjacent to the holding plate 85,
Thereafter, the operation is performed by operating the hydraulic cylinder 8. 83a
Is a spring for returning the rod 82.

Next, the barrel 7 is shown in FIGS.
Will be described with reference to. 10 shows a front view seen from the front direction in FIG. 2, and FIG. 11 shows a sectional view taken along the line AA of FIG. The barrel 7 includes a main tubular portion 71, a lid portion 72 that closes the opening 70, locking discs (engaging centering portions according to the invention) 73 and 74 described later, and four clamp members 75, The main cylinder part 71 and the lid part 72 have a shape in which a cylinder whose both ends are hermetically sealed is cut and separated in parallel to the shaft core at a position separated from the shaft core by a predetermined distance. A cylindrical space is formed.

The main cylinder portion 71 is divided into the openings 70 and extends from both peripheral portions extending in the longitudinal direction in the lateral direction of FIG. 11, that is, in FIG.
2 has a long plate-shaped dovetail-shaped flange portion 71a protruding in the horizontal direction in FIG. 2, and similarly faces both the dovetail-shaped flanged portion 71a in the lateral direction of FIG. 11 from both peripheral portions extending in the longitudinal direction of the lid portion 72. A dovetail-shaped collar portion 72a is provided so as to project. The dovetail-shaped flange portions 71a, 72a are provided on the inner surfaces of the main cylinder portion 71 and the lid portion 72.
11, the rubber lining layers 77 and 78 are attached, and in FIG. 11, the rubber lining layers 77 and 78 are in close contact with each other by being sandwiched between the dovetail-shaped flange portions 71a and 72a. An annular lip 78a is doubly provided on the rubber lining layer 78 to seal the opening 70.

The dovetail-shaped collar portions 71a and 72a are formed so as to expand outwardly so as to become thicker as they move away from the opening 70, and the upper surface and 72a of the dovetail-shaped collar portion 71a.
The lower surface of the has a slope opposite to that of the opening 70. The clamp member 75 is a long member that clamps the dovetail-shaped flange portions 71a and 72a to seal the internal space of the barrel 7, and has a substantially U-shaped cross section in FIG. The clamp member 75 has a dovetail-shaped long groove 75a extending in the longitudinal direction, and the dovetail-shaped flange portions 71a, 72 in the long groove 75a.
a and the rubber lining layers 77 and 78 are fitted. Naturally, the side surface of the long groove 75a has an equal slope to the upper surface of the dovetail-shaped flange portion 71a and the lower surface of the dovetail-shaped flange portion 72a. As a result, the lateral separation of the clamp member 75 is suppressed and the clamp member is also prevented. When the displacement of 75 in the detaching direction occurs, the lid portion 72 is pressed against the main tubular portion 71, whereby the lip 7 of the rubber lining layer 78 is formed.
8a is compressed, and the reaction force further improves the sealing effect.

The clamp member 75 has a dovetail-shaped collar portion 71.
It is pushed in from the longitudinal ends of a and 72a. Stand 7
Reference numeral 6 is for defining the posture when the barrel 7 is placed on the floor surface, the conveyor, etc., and is fitted to the lower surface of the main tubular portion 71.
Fixed. The locking discs 73 and 74 are individually fastened by bolts (not shown) so as to be concentric with both end faces of the main tubular portion 71, and a mortar-shaped core is formed at the center of the outer surface of the locking disc 73. A projecting recess 73a is provided as a recess, and a cross groove 74a passing through the center is provided on the outer surface of the locking disc 74. The centering pin 55 of the rotation pinching mechanism 5 can be fitted in the centering recess 73a, and the rotation pinching mechanism 6 can be inserted in the cross groove 74a.
The cross-shaped protrusion 64a (see FIG. 6) of the barrel support plate 64 can be fitted.

As another embodiment, the barrel support plate 64
The cross-shaped protrusion 64a may be fitted into the cross groove 74a of the locking disc 74 of the barrel 7 by the rotation of the. Further, the engagement centering portion is the locking discs 73, 7 in this embodiment.
However, the shape can be changed within a range in which the barrels 73 and 74 can be clamped and rotated and centered. The barrel 7 described above has the following features.

First, the clamp member 75 is provided and the flange portion 71 is formed.
a and 72a are slid in the longitudinal direction from one end to the long groove 75a of the clamp member 75, and the flange portions 71a and 72a are formed.
Also, since the rubber lining layers 77 and 78 are fitted, the clamping can be easily completed by merely pressing the lid portion 72 against the main tubular portion 71. Further, rubber lining layers 77 and 78 that protect the inner surfaces of the main cylinder portion 71 and the lid portion 72 from abrasion during polishing are extended over the dovetail-shaped collar portions 71a and 72a to give an elastic reaction force at the time of clamping. Since it is configured, it is possible to omit the installation of a special elastic member for giving an elastic reaction force at the time of clamping.

Further, since the dovetail-shaped brim portions 71a, 72a are formed to be thicker as the distance from the opening of the main cylindrical portion 71 increases, it becomes impossible for the clamp member 75 to separate in the direction away from the opening. In particular, the clamp member 75
While the barrel 7 is rotating, it is urged by the centrifugal force in a direction away from the opening. When the clamp member 75 is displaced by this urging force, as shown in the sectional shape of FIG. Since the portions 71a and 72a are biased in the close direction, there is an advantage that the seal is good.

Next, the barrel handling device 10 will be described with reference to FIGS. 3, 12 and 13. The barrel handling device 10 is a self-propelled suspension part 102 capable of self-propelled along a rail 101 extending in a horizontal direction perpendicular to the axial direction of the revolution shaft 2, and is suspended from the self-propelled suspension part 102 so as to be able to move up and down. It is composed of a barrel gripping portion 103 and a conveyor 104, and the self-propelled suspension portion 102 and the barrel gripping portion 103 are operated by electric power supplied through a power supply mechanism (not shown).

The barrel grip 103 is a pair of arms 103.
a, and the tip of the arm 103a can hold the clamp member 75 of the barrel 7. Arm 1 in FIG.
03a shows a state in which the barrel 7 is gripped, and FIG. 12 shows a state in which the barrel 103 is released from the grip on the barrel 7. The conveyor 104, which is operated intermittently, extends in the horizontal direction perpendicular to the paper surface in FIG. 3, carries in the unprocessed barrel 7 from the upstream side, and carries out the processed barrel 7 received from the barrel grip 103 to the downstream side. To do.

The operation of this horizontal type fully automatic centrifugal flow barrel polishing apparatus will be described below. Now, it is assumed that the polishing process has been completed. First, the motor 30 is stopped to stop the rotation and revolution of the barrel 7. When the motor 30 is stopped, the motor 30
Is switched to low-speed rotation, and a position detection sensor (not shown) provided on the column 11 or the column 14 detects whether or not the rotation angle of the disc portion 3 has reached a predetermined stop angle, and the disc portion is constantly rotated. Stop at a predetermined stop angle. In this stopped state, the barrel 7 to be released from the rotation pinching mechanisms 5 and 6
(Hereinafter referred to as the target barrel 7)) is stopped at the upper right position y in FIG.

Next, the barrel handling device 10 travels right above the target barrel 7. Next, the barrel gripper 103 of the barrel handling device 10 grips the target barrel 7. Next, a rotation pinching mechanism 5 for pinching the target barrel 7,
The hydraulic cylinders 8 adjacent to the outside of 6 respectively operate,
The pinching of the target barrel 7 by the rotation pinching mechanisms 5 and 6 is released. Next, the barrel handling device 10 moves the conveyor 10
4, the barrel gripper 103 descends, and the target barrel 7 is placed on the conveyor 104. Next, the conveyor 104 moves a predetermined transport distance, and the unprocessed barrel 7 stops immediately below the barrel grip 103. Next, after the barrel gripper 103 grips the raw barrel 7,
And then the barrel handling device 10 moves the raw barrel 7 to the upper right position y, then the hydraulic cylinder 8
The urging of the rotation pinching mechanisms 5 and 6 in the barrel non-pinching direction is released, the raw barrel 7 is pinched by the barrel support plates 64 and 54, and then the barrel barrel 103 holds the raw barrel 7. Release, raise the barrel grip 93 and retract onto the conveyor 104, after which the motor 30
Is driven to rotate the revolving shaft 2 by a predetermined angle, and the barrel 7 is sequentially replaced. After that, the barrel 7 is rotated and revolved to polish the workpiece in the unprocessed barrel 7.

As described above, in this embodiment, the rotation pinching mechanisms 5 and 6 and the hydraulic cylinder 8 constitute the barrel pinching mechanism referred to in the present invention, so that the barrel pinching and releasing thereof, especially the rotation and revolving thereof. The mechanical portion can be simple and lightweight, the reliability and durability can be improved, and the device can be downsized by reducing the revolution mass. Other,
Since the barrel can be centered by the centering pin 55, it is possible to prevent misalignment, rotation, and separation of the barrel during revolution.

Further, since the locking rods 57c and 67c revolve and rotate on the pawls 86 of the rod 82 of the hydraulic cylinder 8 so as to be locked, there is no need to rotate or revolve the hydraulic cylinder 8 and the revolving mass can be reduced. This can be realized and the device can be downsized. In order to stop the revolution shaft 2 at a predetermined stop phase, the rotation angle position of the disk portion 3 may be detected by a limit switch or a rotary encoder and the motor 30 may be controlled. Since it is obvious, detailed description thereof will be omitted. To do. (Embodiment 2) An embodiment in which the barrel holding mechanism described above is applied to a vertical type fully automatic centrifugal flow barrel processing apparatus will be described below.

FIG. 14 is a front view of this apparatus, and FIG. 15 is a plan view of this apparatus. This device is a vertical type fully automatic centrifugal flow barrel polishing device, in which columns 1b are erected at four corners of a base 1a, and the tops of columns 1b are fixed to a top plate 1c. The base 1a, the support 1b, and the top plate 1c constitute a frame (mount) 1 according to the present invention. Bearing boxes 13 are fixed to the center of the upper surface of the base 1a and the center of the lower surface of the top plate 1c, respectively. Radial bearings (not shown) in both bearing boxes 13 support the revolving shaft 2 vertically. Furthermore, base 1
A thrust bearing (not shown) is built in the central portion of a, and this thrust bearing rotatably supports the lower end of the revolution shaft 2.

A motor 30 (a rotary drive source in the present invention) is fixed to the upper surface of the top plate 1c, and the drive shaft of this motor is directly connected to the revolution shaft 2. A disc portion 3 and a cylindrical portion 4 are fixed to the revolution shaft 2 at a predetermined interval, and six revolution pinching mechanisms 5 are arranged at the disc portion 3 about the revolution shaft 2 so as to be rotatable at equal intervals. There is. Further, six rotation pinching mechanisms 6 are arranged in the cylindrical portion 4 so as to be rotatable about the revolution shaft 2 at equal intervals in the circumferential direction.
The respective axis cores of are aligned with the respective axis cores of the rotation pinching mechanism 6 and are parallel to the revolution axis 2. Rotation pinching mechanism 5, 6
Respectively hold the closed long cylindrical barrel 7, and the barrel 7 is revolved and rotated by the rotation holding mechanisms 5, 6 as will be described later.

Disk part 3, cylindrical part 4, rotation pinching mechanism 5,
6. The basic structure of the hydraulic cylinder 8 is the same as that of the first embodiment. However, the hydraulic cylinder 8 (see FIG. 14) is
a and the revolving shaft 2 (see FIG. 1).
4) is supported by a thrust bearing built into the base 1a, and the cap 92d (see FIG. 16) has a pin 9
2a by a screw (not shown), the sun gear (see FIG. 17) 91 is supported by the base 1a through the sleeve 94, the support plate 95 and the bearing box 13, and the rotation shaft 61 (see FIG. 17). Refer to) Sleeve 93
through the thrust bearing 6g and the boss 48
The first embodiment is different from the first embodiment in that the bearing stopper 59 (see FIG. 18) is screwed to the rotation shaft 51.

Next, the barrel 7 used in this embodiment will be described with reference to FIG. FIG. 21 shows an axial sectional view of the barrel 7. The barrel 7 is a main cylinder portion 7 made of a deep-bottomed cylinder.
1 and a shallow-bottomed cylindrical lid portion 72 fitted into the main tubular portion 71 to close the opening thereof. A cross groove 71a is formed on the outer surface of the bottom plate of the main tubular portion 71, and a centering hole 72a is formed in the center of the outer end surface of the lid portion 72. Centering hole 7
The centering pin 55 can be fitted in the 2a, and the cross-shaped protrusion 64a (see FIG. 5) of the barrel support plate 64 of the rotation pinching mechanism 6 can be fitted in the cross groove 71a. A circular recess 71c into which the top of the main cylinder 71 can be fitted is bored on the inner surface of the bottom of the lid 72, and an O-ring 73 is arranged on the top of the cylindrical wall of the main cylinder 71. Furthermore, the inner peripheral surface of the lid portion 72 is separated by 90 degrees from each other and has four straight grooves 72b.
Is provided in the axial direction, and a rotation inhibiting pin 73 that can be engaged with the straight groove 72b is provided on the outer peripheral surface of the main tubular portion 71 so as to project. Therefore, the main cylinder portion 71 rotates the lid portion 72 by driving the barrel support plate 64. The O-ring 73 is
The inner space of the barrel 7 is sealed by being pressed by the barrel support plates 54 and 64.

In this embodiment, the barrel support plate 64 has a constant posture during rotation and revolution, and the cross-shaped ridge 6 is formed.
4a is always extended in the front-rear direction and the left-right direction when stopped, so that the barrel 7 is set in a predetermined posture, and the barrel support plate 64 is displaced to the axial barrel holding side, whereby the cross groove 71a is automatically formed. The projection 64a is fitted.
However, as another embodiment, the cross-shaped protrusions 64a of the barrel support plate 64 are rotated by the rotation of the barrel support plate 64 so that the cross grooves 71a of the barrel 7 are formed.
May be fitted.

In the barrel 7 described above, only the simple barrel-shaped main cylinder portion 71 is covered with the lid portion 72, and although the lid portion 72 is easily attached and detached, the barrel 7 is carried into the apparatus. The device and its surroundings are not contaminated when it is taken out or taken out from the device. Next, the barrel handling device 10 will be described with reference to FIG. The barrel handling device 10 includes a handling robot 100 and a conveyor 200, and a base 101 fixed to the floor surface.
A cylindrical body portion 102 that is held so as to be horizontally rotatable about an axis m, and one arm 103 that is provided to project from the circumferential surface of the body portion 102 so as to be able to advance and retract in the radial direction. The pair of hands 104 is fixed to the tip of the arm 103 and is movable in a direction perpendicular to the advancing / retreating direction and in opposite directions. The operation itself of each of the above parts of the handling robot 100 is well known, and a description thereof will be omitted.

In the intermittently operated conveyor 200, the raw barrel 7 is loaded from the upstream side, and the barrel grip 1
The processed barrel 7 received from 03 is carried out to the downstream side. Hereinafter, the operation of the vertical vertical fully automatic centrifugal flow barrel polishing machine will be described. Now, it is assumed that the polishing process has been completed. First, the motor 30 is stopped to stop the rotation and revolution of the barrel 7. When stopping this motor 30, the motor 3
0 is switched to low-speed rotation, and a position detection sensor (not shown) fixed to a support plate (not shown) hanging from the top plate 1c detects whether the rotation angle of the disk portion 3 has reached a predetermined stop angle. , The disk portion is always stopped at this stop angle. In this stopped state, the rotation pinching mechanisms 5, 6
Barrel 7 to be released from here (hereinafter referred to as target barrel)
Are closest to the handling robot 100. Next, the arm 103 of the handling robot 100 is shown in FIG.
It extends from the state to the target barrel to the limit. At this time, the interval between both hands 104 is widened, and hand 1
04 extends on both sides of the target barrel 7. Next, both hands 1
The interval of 04 is reduced, and the hand 104 grips the target barrel 7. Next, the hydraulic cylinder 8 (see FIG. 14) is operated, and the pinching of the target barrel 7 by the rotation pinching mechanisms 5 and 6 is released. Next, the arm 103 retracts to the position shown in FIG. 15, that is, to the limit, and then the body 102 rotates 180 degrees, after which the arm 103 extends to the limit. As a result, the outer bottom surface of the target barrel 7 is located above the carrying surface of the conveyor 200 by about 1 to 2 cm. Next, both hands 10
4 is widened, and the target barrel 7 is seated on the transport surface of the conveyor 200. Next, the arm 103 retreats to the limit, after which the conveyor 200 moves a predetermined transport distance, and after the target barrel 7 has moved, the unprocessed barrel is carried in.
Next, the arm 103 extends to the limit, and then the hand 104 grips the unprocessed barrel. Next, the arm 103 is retracted to the limit, and the body 102 is moved to 18
It rotates 0 degrees and then the arm 103 extends to the limit.
As a result, the unprocessed barrel is set between the rotation holding mechanisms 5 and 6. Next, the distance between the both hands 104 is widened, the grip of the raw barrel by the hands 104 is released, and then the hands 104 retract to the limit. As a result, one processed barrel (target barrel) 7 is replaced with an unprocessed barrel. Thereafter, the operation of rotating the revolving shaft 2 by 60 degrees and subsequently performing barrel replacement is repeated five times, and after replacing all the processed barrels 7 with unprocessed barrels, the motor 30 is driven to grind the work in the barrel 7. I do.

The operating speed of the handling robot 100 and the transfer speed of the conveyor 200 described above can be carried out at an extremely high speed because there is no risk of the contents leaking from the barrel 7, and the vertical vertical full-automatic centrifugal flow barrel processing device. It is possible to remarkably improve the processing time of, and to keep the environment around the apparatus clean. Although the barrel 7 is carried in and out of the apparatus by the single handling robot 100 in the above embodiment, a plurality of handling robots may be used, or the handling robot may be exclusively used for carrying out or carrying in. (Third Embodiment) Next, a modified example of the barrel 7 will be described with reference to FIG. FIG. 20 shows an axial sectional view of the barrel 70.

The barrel 70 is a main cylinder portion 7 composed of a deep-bottomed cylinder.
6 and a lid 77 made of a shallow cylinder closing the opening
And rubber lining layers 78 and 79 attached to the inner surfaces of the main cylinder 76 and the lid 77. A cross groove 76a is formed on the outer surface of the bottom plate of the main cylinder portion 76, and a centering recess 77a is formed in the center of the outer surface of the lid portion 72. The centering pin 55 can be fitted into the centering recess 77a,
A cross-shaped protrusion 64a of the barrel support plate 64 of the rotation pinching mechanism 6 can be fitted into the cross groove 76a.

The inner peripheral surface of the lid 77 is a female screw surface 77.
b, a male screw surface is formed on the outer peripheral surface of the main tubular portion 76, and the lid 77 is screwed to the main tubular portion 76. By the above screwing,
The joint between the rubber lining layers 78 and 79 is elastically deformed to seal the inside. A stopper ring 76b is fixed to the outer peripheral surface of the main cylindrical portion 71, and the stopper ring 76b prohibits the rubber lining layer 78 from being compressed more than necessary due to the cover 72 being rotated more than necessary.

In this way, the lid 72 is attached to the main tubular portion 71.
, The contents can be prevented from leaking to the outside due to a change in the attitude of the barrel 7 even if the lid 72 is not strongly pressed onto the main cylinder 71 by the barrel holding mechanisms 5 and 6.
It can also be applied to a horizontal type fully automatic centrifugal flow barrel processing device. When the barrel 70 rotates, it is preferable that a screw be cut so that the lid 77 is urged in a direction of being screwed into the main cylinder 76. (Fourth Embodiment) Further, a modified example of the barrel 7 will be described with reference to FIG. FIG. 21 shows an axial cross-section of barrel 700.

A barrel support plate 540 is fixed to the holding shaft 520 in this embodiment. This barrel support plate 5
40 is the barrel support plate 54 of the second embodiment shown in FIG.
A mortar-shaped skirt portion 541 extends in the barrel holding direction from the outer peripheral edge of 40. Skirt 541 is barrel 7
00 constitutes a lid portion. 542 is a rubber lining layer attached to the barrel 700.

The barrel 700 is composed of a deep-bottomed cylinder, and the inner surface of the barrel 700 is covered with a rubber lining layer 701. A cross groove 702 is recessed on the outer surface of the bottom plate of the barrel 700, and a cross-shaped protrusion 64a of the barrel support plate 64 of the rotation pinching mechanism 6 can be fitted into the cross groove 702. Further, on the top of the peripheral wall of the barrel 700, a circular brim portion 703 that can be brought into close contact with the skirt portion 541 is stretched over the entire circumference.

In this way, the barrel holding mechanisms 5, 6 are
When the barrel 700 is clamped by the barrel support plate 54,
0 can close the opening of barrel 700. In addition, the mortar-shaped joint surface of the skirt portion 541 and the circular flange portion 703 is effective for centering the barrel support plate 540 and the barrel 700. The joint between the rubber lining layers 542 and 701 is elastically compressed by the clamping pressure of the barrel 700 to seal the inside.

[Brief description of drawings]

FIG. 1 is a plan view of a horizontal full-automatic centrifugal flow barrel processing apparatus of this embodiment.

FIG. 2 is a front view of a horizontal full-automatic centrifugal flow barrel processing apparatus of this embodiment.

FIG. 3 is a side view of a horizontal full-automatic centrifugal flow barrel processing apparatus of this embodiment.

FIG. 4 is an explanatory diagram of a planetary gear mechanism.

FIG. 5 is a partially enlarged axial sectional view of the cylindrical portion of FIG. 1;

6 is a partially enlarged axial sectional view of the cylindrical portion of FIG.

FIG. 7 is a partially enlarged axial sectional view of the disk portion of FIG.

8 is a plan view of the hydraulic cylinder of FIG. 1. FIG.

9 is a front view of the hydraulic cylinder of FIG. 1. FIG.

10 is a front view of the barrel of FIG. 1. FIG.

11 is a radial cross-sectional view of the barrel of FIG.

12 is a side view of the barrel handling device of FIG. 1. FIG.

13 is a side view of the barrel handling device of FIG. 1. FIG.

FIG. 14 is a front view of the fully-automatic centrifugal flow barrel processing device according to the second embodiment.

FIG. 15 is a plan view of a fully-automatic centrifugal flow barrel processing apparatus of Example 2.

16 is a partially enlarged axial sectional view of the cylindrical portion of FIG.

17 is a partially enlarged axial sectional view of the cylindrical portion of FIG.

FIG. 18 is a partially enlarged axial sectional view of the disk portion of FIG.

19 is an axial cross-sectional view of the barrel of FIG.

FIG. 20 is an axial sectional view of a barrel according to a third embodiment.

21 is an axial cross-sectional view of the barrel of Example 4. FIG.

[Explanation of symbols]

1 mount, 2 revolving shaft, 3 disc part, 4 cylindrical part (disc part), 5 and 6 rotation pinching mechanism (part of barrel pinching mechanism), 7 barrel, 8 hydraulic cylinder (pinching releasing actuator, remaining part of barrel pinching mechanism) ), 9 planetary gear mechanism (planetary motion mechanism), 10 barrel handling device (barrel handling mechanism), 30 motor (rotational drive source), 51, 61 rotating shaft, 52, 62 clamping shaft, 55
Centering pin, 58 centering spring.

Claims (5)

[Claims] 1. A revolving shaft supported by a mount having a pair of disc parts and connected to a rotational drive source, and a revolving shaft that is located on a parallel axis line that divides the periphery of the revolving shaft into equal parts and rotates on the disc part. A plurality of pairs of rotation shafts that are held so that they can rotate, a planetary motion mechanism that rotates the rotation shafts in conjunction with the revolution shafts, a plurality of barrels that contain a work and an abrasive, and have engagement centering portions at both ends. And a barrel for advancing and retracting a holding shaft that is axially slidably mounted on each pair of rotation shafts, and detachably holds the barrel through the connection between the holding shaft and the engagement centering portion. And a barrel handling mechanism that divides the carry-out of the processed barrel released at a predetermined stop phase of the disk portion and the carry-in of a newly mounted untreated barrel, wherein the barrel holding mechanism is The barrel is clamped by the rotation shaft that is housed in the rotation shaft. A spring that urges in the direction, and is fixed to the gantry, and displaces the barrel non-clamping side end of the clamping shaft projecting from the disk at the stop phase of the disk in the barrel non-clamping direction. A fully automatic centrifugal flow barrel processing apparatus, comprising: a clamp release actuator that releases the barrel. 2. A centering pin slidably held in a hole formed in an end of the holding shaft on the side of the barrel holding side, and capable of being fitted in a centering recess of the barrel, and housed in the hole. The fully-automatic centrifugal flow barrel processing apparatus according to claim 1, further comprising a centering spring that biases the centering pin in the barrel holding direction. 3. An end of the nipping shaft on the non-barrel side of the barrel has a brim extending in the radial direction of the revolution shaft, and a rod tip of the nipping release actuator has the brim in the circumferential direction of the revolution shaft. The fully-automatic centrifugal flow barrel processing apparatus according to claim 1, further comprising a claw capable of moving in and out of the flange portion and pulling the collar portion in the barrel non-clamping direction. 4. The barrel according to claim 1, wherein the barrel comprises a main cylinder portion having an opening in a peripheral wall thereof, a lid portion closing the opening, and a clamp member for pressing the lid portion against the main cylinder portion. Automatic centrifugal flow barrel processing equipment. 5. The fully automatic centrifugal flow barrel processing apparatus according to claim 1, wherein the barrel comprises a main cylinder portion and a lid portion that seals the opening thereof.