JPH05318296A - Polishing device - Google Patents

Abstract

PURPOSE:To polish a work as specified by locating each polishing body in the specified position, putting it in orbiting and rotating round its own axis, moving a group of such polishing bodies by a moving device in the direction along the axis of orbiting, and putting them in contact with a work to be polished. CONSTITUTION:Each vertical shaft 48 is revolved round the orbit axis 37 by turning a supporting member 36 by a rotation drive device 39 and also is rotated round its owm axis 47 through a vertical shaft driving device 39, and thereby each polishing body is allowed to rotate round its own axis while making the orbit. A work to be polished 8 is located in the specified position, and a group of such polishing bodies 66, 67 are moved by a moving device 55 in the direction along the orbit axis 37 to put them in contact with the work 8. Thus the intended polishing operation is executed. Because therein at least one 66 of the polishing bodies has a major dia., the area near the orbit axis 37 is always polished wherever this major dia. polishing body 66 lies in orbiting. and thereby the front surface of the work 8 can be ground.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing apparatus used for polishing the surface of a plate-like object such as a glass plate, a metal plate, a stone plate, or a block object such as a tombstone.

[0002]

2. Description of the Related Art Conventionally, as this type of polishing apparatus, for example, a polishing apparatus having a structure shown in FIG. 7 has been provided. That is, a passive shaft 80 that interlocks with a rotary drive is provided, and a plurality of vertical axes 84 that can freely revolve on a revolution trajectory 83 are provided by rotation 82 of the passive shaft 80 around a revolution axis 81. The rotation 86 is freely rotatable around the rotation axis 85 along the revolution axis 81. A polishing body 87 having the same diameter is attached to the lower end of each vertical axis 84, and the entire body is movable 88 in the width direction of the plate-like object 89.

According to this conventional type, by rotating 82 the passive shaft 80 by the rotary drive device, each vertical axis 84 revolves around the revolution axis 81, and each vertical axis 84 via the gear mechanism or the like. Is rotated about the rotation axis 85.
Then, the plate 87 is polished by revolving the polishing body 87 while revolving, and the plate 89 is further polished by the movement 88 in the width direction.

[0004]

However, according to the above-described conventional structure, a portion A that is not sufficiently polished is formed in the range including the revolution axis 81 and over the entire length in the width direction, so that the plate-like material is formed. You cannot expect uniform polishing over the entire surface.

An object of the present invention is to provide a polishing apparatus which is capable of revolving and revolving a plurality of polishing bodies and rotating the surface of an object to be polished so that the surface of the object to be polished is always uniformly and sufficiently polished. is there.

[0006]

In order to achieve the above object, the polishing apparatus of the first aspect of the present invention is provided with a support member rotatable about an axis of revolution and a rotary drive unit interlocking with the support member, A plurality of vertical axes that are rotatable around the rotation axis along the revolution axis are inserted into the support member, and a vertical axis drive unit that interlocks with each vertical axis is provided, and a polishing body is provided at the lower end of each vertical axis. A moving device is provided which sets at least one of these polishing bodies to have a larger diameter than the remaining polishing bodies and moves the polishing bodies in a direction along the revolution axis.

In the polishing apparatus of the second aspect of the present invention, one large-diameter polishing body is set to have a diameter exceeding the revolution axis.

[0008]

According to the first aspect of the present invention, by rotating the support member by the rotation drive device, each vertical axis is rotated about the revolution axis, and each vertical axis is rotated by the vertical drive device. Can be rotated around the axis of rotation, so that the polishing body can be rotated while revolving. Then, with the object to be polished in a predetermined position, the moving device moves the group of objects to be polished in the direction along the axis of revolution to bring the object into contact with the object to be polished, whereby desired polishing can be performed. At that time, since at least one polishing body has a large diameter, the large diameter polishing body will always be polished in the vicinity of the revolution axis at any position of revolution.
Thus, the entire surface of the object to be polished can be polished.

Further, according to the structure of the second aspect of the present invention, since one polishing body has a large diameter exceeding the revolving axis, this one polishing body can be polished beyond the revolving axis at any position of revolution. Therefore, uniform polishing of the entire surface of the object to be polished can be reliably performed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 1 denotes a conveyor device, which is composed of a frame 2, a large number of rollers 3 supported on the frame 2, and a motor 5 with a reduction gear which is interlockingly connected to the rollers 3 via a transmission device 4 such as a chain. The roller 3 is provided with a pair of left and right ring bodies 6 for preventing positional deviation in the width direction. The conveyor device 1 supports and conveys a pallet 7, and the pallet 7 supports a plate-like object 8 which is an example of an object to be polished.

Three polishing devices 30 are provided above the transport path of the conveyor device 1 thus constructed. These polishing devices 30 have the same configuration, are supported by a common machine frame 10 standing upright from the frame 2, and are arranged along the transport path. Note that only one polishing device 30 may be provided. A guide rod 11 is provided between the upper and lower parts of the machine frame 10 formed of a pair of left and right, and a main body 31 of the polishing device 30
Is supported and guided by the guide rod 11 and is movable in the left-right direction.

The reciprocating device 12 for reciprocating the polishing device 30 in the left-right direction includes a motor 13 mounted on one frame 2, a speed reducer 14 interlocked with its drive shaft, and an upward direction from the speed reducer 14. A ring body 16 attached to the output shaft 15, a crank pin 18 provided at an eccentric position of the ring body 16 via an adjusting tool 17, one end of which is connected to the crank pin 18, and the other end of which is a pin 19 on the main body 31. And a push-pull rod 20 connected via

A rectangular tubular case frame 32 is vertically provided from the side portion of the main body 31, and a fixing member 34 having a vertical through hole 33 is connected to the lower inner surface side of the case frame 32. The support member 3 is inserted into the through hole 33 via a bearing 35.
6 is rotatably arranged, and its axis of rotation is an orbital axis 37 in the vertical direction.

A passive shaft 38 is erected from the support member 36 so as to be located on the revolution axis 37. A rotary drive device for rotating the passive shaft 38 around the revolution axis 37 is composed of a motor 39 fixed to the main body 31, and a drive wheel body 41 is fixed to an output shaft 40 facing downward. The driving wheel body 41 and the passive wheel body 42 fixed to the upper end of the passive shaft 38 are interlocked with each other through an endless rotating body 43 such as a timing belt.

The three cylindrical shafts 4 penetrate the support member 36.
5, the cylindrical shafts 45 are equidistant with respect to the revolution axis 37 and equiangular in the circumferential direction, and the bearings 46 are provided.
It is rotatably supported via. The rotation axis thereof is a rotation axis 47 along the revolution axis 37. A vertical axis 48 is inserted into each cylindrical shaft 45, and the vertical axis 48 is slidably coupled to the cylindrical shaft 45 along a rotation axis 47 via a key 49 or the like. In order to rotate each vertical axis 48 in the same direction around the rotation axis 47, an internal gear 50 is fixed to the upper portion of the fixing member 34, and a gear 51 that constantly meshes with the internal gear 50 is attached to the cylindrical shaft. It is fixed to the upper end of 45.

In order to move the vertical axis 48 up and down, a plurality of pressure cylinders 55 are provided on the lower surface of the main body 31, and a lifting member 56 is connected between the downward piston rods of these pressure cylinders 55. The elevating member 56 has a through portion 57.
It is fitted onto the passive shaft 38 via.

In the penetrating portion 57, the elevating member 5
6 is supported by a bearing 58 so that only relative rotation is possible,
A cylindrical member 60 is provided on the passive shaft 38 via a key 59 so as to be freely moved up and down. A movable member 62 is externally fitted to the lower portion of the tubular member 60 via a ball bearing 61,
The upper end of the vertical axis 48 is supported by the movable member 62 via a bearing 63 so as to be rotatable only.

A disk-shaped polishing body (such as a grindstone) is attached to the lower end of each vertical axis 48 via a flange member 64 and a fixture 65. Here, one polishing body is a large-diameter polishing body 6.
6 and the remaining two are small-diameter polishing bodies 67.
The large-diameter polishing body 66 is set to have a diameter exceeding the revolution axis 37.

A polishing slurry can be supplied to the polishing apparatus 30. That is, below the group of rollers 3, the recovery hopper 21 is provided on the frame 2 side.
The recovery hopper 21 communicates with a tank 23 via a pipe 22. The polishing slurry pumped up from the tank 23 by the pump 24 passes through the supply path 25 formed on the vertical axis 48 and the like, and the vertical axis 48
Is sprayed from the lower end of the polishing plate toward the polishing bodies 66 and 67.

The motor 39, which is an example of a rotary drive device.
Also serves as a vertical drive unit, but this vertical drive unit may be provided separately. Further, the pressurizing cylinder 55, which is an example of the moving device, may have another type such as a screw shaft type.

The operation of the above embodiment will be described below. The pallet 7, which supports the plate-like object 8 on the upper surface side, is placed on the group of rollers 3 and thus is regulated in the width direction by the ring body 6 to be conveyed by the conveyor device 1. At this time, in the polishing apparatus 30, due to the contraction of the pressure cylinder 55, the cylindrical member 6
The movable member 62 is lifted through 0 or the like, and thus the polishing bodies 66, 67 are also lifted through the vertical axis 48. Therefore, the pallet 7 is carried in below the polishing device 30 and stopped at a predetermined position.

The motor 39 is driven before and after the pallet 7 is stopped. Therefore, the rotation of the output shaft 40 is transmitted to the passive shaft 38 via the endless rotating body 43, etc., and the support member 36 is rotated about the revolution axis 37 by the rotation 70.
Let By the rotation 70 of the support member 36, each vertical axis 4
8 is revolved around the revolution axis 37 on the revolution trajectory 71. At the same time, the gears 51 revolve around the revolution axis 37 integrally with the respective vertical shafts 48, and at this time, the gears 51 mesh with the fixed internal gear 50.
The groups of vertical axes 48 are respectively rotated 72 about the rotation axis 47 via the. As a result, the polishing bodies 66 and 67 rotate about their axes while revolving.

In this state, the movable cylinder 62 is lowered by the extension of the pressure cylinder 55 through the tubular member 60, and the polishing bodies 66, 67 are lowered through the vertical axis 48 to move the plate-like object 8.
Abut the upper surface of. At this time, since one polishing body is a large-diameter polishing body 66 that exceeds the revolution axis 37, it is necessary to always polish the vicinity of the revolution axis 37 at any position of the revolution with this large-diameter polishing body 66. As a result, it is possible to perform polishing with no polishing residue.

The plate-like material 8 can be polished in this manner, and at this time, the polishing bodies 66, 67 are moved 73 in the width direction.
Has been done. That is, the push-pull rod 20 is pushed and pulled by the operation of the motor 13 via the crank mechanism. As a result, the main body 31 is supported and guided by the guide rod 11, and the group of polishing bodies 66 and 67 is moved 73 in the width direction, so that the entire surface of the plate-shaped object 8 can be polished uniformly.

Further, during the polishing, the polishing slurry is sprayed from the lower end of the vertical axis 48 toward the polishing bodies 66, 67 to promote the polishing. Then, the used polishing slurry is received by the recovery hopper 21, and is recovered in the tank 23 through the pipe 22. Also the tank 23
The polishing slurry in the inside is pumped up by a pump 24, passes through a supply passage 25 formed in the vertical axis 48, and the vertical axis 4
8 is supplied to the lower end.

In the above embodiment, the plate-like material 8 is moved to the conveyor device 1
However, this may be a stationary type, and the plate-like object 8 may be put in or taken out from a predetermined position. Further, the object to be polished may be a block object such as a tombstone in addition to the plate-like object 8, and the surface thereof is polished.

In the above embodiment, one large-diameter polishing body 66 is used.
In the first invention, the large-diameter polishing body 66 is set to have a diameter that reaches near the revolution axis 37 but does not exceed the revolution axis 37. Good. In this case, for example, it is possible to combine two large-diameter polishing bodies 66 and one small-diameter polishing body 67.

[0028]

According to the first aspect of the present invention having the above-mentioned structure, the polishing body group that is rotating while revolving is moved in the direction along the axis of revolution by the moving device with the polishing body in a predetermined position. By bringing the object to be polished into contact with the object to be polished, desired polishing can be performed on the object to be polished. At that time, since at least one polishing body has a large diameter, this large-diameter polishing body can always polish the vicinity of the revolving axis at any position of the revolution, thereby providing a uniform surface over the object to be polished. Polishing can be performed.

Further, according to the second aspect of the present invention, since one polishing body has a large diameter exceeding the revolution axis, it is possible to polish the one polishing body beyond the revolution axis at any position of revolution. As a result, uniform polishing of the entire surface of the object to be polished can be reliably performed.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a polishing apparatus according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the polishing apparatus.

FIG. 3 is a schematic plan view showing a polishing state of the polishing apparatus.

FIG. 4 is a front view of polishing equipment incorporating the same polishing apparatus.

FIG. 5 is a side view of polishing equipment incorporating the same polishing apparatus.

FIG. 6 is a plan view of polishing equipment incorporating the same polishing apparatus.

FIG. 7 is a schematic plan view showing a polishing state of a polishing apparatus according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyor device 7 Pallet 8 Plate-like object (object to be polished) 11 Guide rod 12 Reciprocating device 21 Recovery hopper 30 Polishing device 31 Main body 36 Supporting member 37 Revolution shaft center 38 Passive shaft 39 Motor (rotary drive device, vertical drive) Device 47 Rotation axis 48 Vertical axis 50 Internal gear 51 Gear 55 Pressurizing cylinder (moving device) 62 Movable member 66 Large-diameter polishing body 67 Subtotal polishing body 71 Revolution locus 72 Rotation

Claims (2)

[Claims] 1. A support member rotatable about an axis of revolution and a rotary drive device interlocking with the support member are provided, and the support member is rotatable about an axis of rotation along the axis of revolution. Along with inserting a plurality of vertical axes, a vertical axis drive unit that interlocks with each vertical axis is provided, a polishing body is attached to the lower end of each vertical axis, and at least one polishing body of these polishing bodies is Also has a large diameter and is provided with a moving device for moving the polishing body in a direction along the revolution axis. 2. The polishing apparatus according to claim 1, wherein one large-diameter polishing body is set to have a diameter exceeding the revolution axis.