JP2502767B2 - Slewing device and winding machine and polishing machine using the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a polishing machine.

(Prior Art) Conventionally, for example, a lens polishing machine employs a system in which a rotating spindle is provided with a polishing member or a lens, and polishing is performed by relative rotation of the polishing member and the lens.

(Problems to be Solved by the Invention) However, the above-mentioned polishing machine has the following problems.

In a conventional polishing machine, only one set of objects to be polished can be polished for one rotating mechanism. Therefore, in order to simultaneously polish a plurality of objects to be polished, a plurality of rotating mechanisms must be provided, which is complicated. There are issues such as increasing size, increasing size, and increasing costs.

Therefore, a polishing unit for polishing an object to be polished by relatively rotating a holding unit that holds a plurality of objects to be polished and a mounting unit to which a plurality of polishing members are mounted without both rotating in a plane. You can think of a device. In this polishing apparatus, the same relative swiveling motion is performed between all corresponding points of the holding portion and the mounting portion. Therefore, by disposing a plurality of objects to be polished on the holding portion and mounting a plurality of polishing members on the mounting portion so as to correspond thereto, all the objects to be polished can be polished under the same conditions. Therefore, a plurality of objects to be polished can be efficiently and uniformly polished with a simple structure. In order to obtain this relative pivoting movement, a method of using a plurality of levers of the same shape formed in a crank shape, in which two shafts are protruded in parallel and opposite directions with a gap in the lever body, is used as background art. is there.

However, when using a plurality of levers as described above, when it is desired to change the turning radius along with the change of the type of the object to be polished, it is necessary to convert all of the plurality of levers to different sizes, which is complicated. There was a problem of being unbearable. Further, it has been impossible to polish a plurality of objects to be polished at the same time with the same arbitrary trajectory.

Therefore, the present invention provides a polishing machine capable of arbitrarily setting relative trajectories of polishing motions corresponding to various polishing conditions, and capable of polishing an object to be polished uniformly, accurately and efficiently in a suitable manner. To aim.

(Means for Solving the Problems) In order to solve the above problems, the present invention has the following configuration.

That is, a pair of X-axis guides arranged parallel to the X-axis direction, a pair of Y-axis guides arranged parallel to the Y-axis direction perpendicular to the X-axis direction, and the pair of X-axis guides. X attached to the guide at both ends to be movable in the X-axis direction
The X-axis moving body, the Y-axis moving body connected to the pair of Y-axis guides at both ends to be movable in the Y-axis direction, and the first member or the second member are fixed. A movable body that is movable in the X-axis direction and the Y-axis direction guided by the movable body and the Y-axis movable body, and is movable in an arbitrary locus without rotating in a plane, and the movable body. The attached first member, the polishing member or the workpiece attachment portion attached to the first member, the second member arranged to face the first member, and the second member. An object-to-be-polished member attached to a member or a polishing member,
A driving mechanism for driving the moving body and a contact / separation mechanism for moving the first member or the second member into and out of contact with the second member or the first member are provided.

(Operation) The operation will be described.

When the polishing machine according to the present invention is used, the moving body can move the first member or the second member in an arbitrary locus (turning) with respect to the second member or the first member without rotating in the plane. (Including) can be moved.

At this time, according to the present invention, the relative polishing movement is performed by the X-axis moving body linked to the pair of X-axis guides at both ends and the Y-axis moving body linked to the pair of Y-axis guides at both ends. The movement of the moving body due to the synthesis of the movements of the moving body, the moving body always moves at both ends of the X-axis moving body and at both ends of the Y-axis moving body.
Being supported by points. That is, since the load applied to the moving body can be received at four points, the moving body is supported in a very well-balanced and stable state.

(Examples) Hereinafter, preferred examples of the present invention will be described in detail with reference to the accompanying drawings.

First, the first embodiment will be described with reference to FIGS. 1 and 2.

Reference numeral 10 is a first member, which is formed in a plate shape and has a turning mechanism.
It is connected to the lower surface of a slider 14, which is a moving body of 12.

The turning mechanism 12 is fixed above the main body 308, and its plan view is shown in FIG.

In the figure, 18 is a frame, which is a rectangular frame with the center removed.

Reference numerals 20 and 22 denote X-axis ball screws, which are arranged parallel to each other in the same plane. The X-axis ball screw 20 is directly driven and rotated by an X-axis motor 24 which is an X-axis driving means. The rotational force of the X-axis motor 24 is transmitted to the X-axis ball screw 22 via the first transmission mechanism including the curved bevel gear and the transmission shaft 30. The tip portions (left end portion in the drawing) of the X-axis ball screws 20 and 22 are pivotally supported by an appropriate support frame. The X-axis ball screws 20 and 22 act as X-axis guides, and also act as components of a drive mechanism that moves the slider 14, which is a moving body, in the X-axis direction.

Reference numerals 34 and 36 denote Y-axis ball screws, which are arranged parallel to each other, in the same plane, and orthogonal to the X-axis ball screws 20 and 22 in substantially the same plane. The Y-axis ball screw 34 is directly driven and rotated by a Y-axis motor 38 which is a Y-axis driving means. The rotational force of the Y-axis motor 38 is transmitted to the Y-axis ball screw 36 via a second transmission mechanism including a helical gear and a transmission shaft 44. Also, Y-axis ball screws 34, 36
The tip portion (lower end portion in the drawing) of is also pivotally supported by an appropriate support frame. The Y-axis ball screws 34 and 36 act as Y-axis guides and move the slider 14 as a moving body to Y-axis.
It also acts as a component of a drive mechanism that moves in the axial direction.

48 and 50 are X-axis driving bodies, respectively, X-axis ball screw
Since the X-axis ball screws 20 and 22 rotate in the same direction, they can move simultaneously in the X-axis direction because they are screwed into the screws 20 and 22 and are prevented from rotating by an X-axis rod described later.

52 and 54 are Y-axis driving bodies, and each is a Y-axis ball screw.
Since the Y-axis ball screws 34 and 36 are screwed into the shafts 34 and 36 and are prevented from rotating by a Y-axis rod described later, the Y-axis ball screws 34 and 36 can move in the Y-axis direction at the same time by rotating in the same direction.

Reference numeral 56 denotes an X-axis rod, which is arranged parallel to the Y-axis, is inserted through the slider 14, and both ends thereof are fixed to the X-axis driving bodies 48 and 50, respectively. (This X-axis rod 56 and a pair of X-axis drivers
48 and 50 constitute an X-axis moving body which is connected to the pair of X-axis guides at both ends and is provided so as to be movable in the X-axis direction. As a result, the slider 14 moves in the X-axis direction as the X-axis drive bodies 48, 50 whose rotation is blocked by the X-axis rod 56 move in the X-axis direction.

Reference numeral 58 denotes a Y-axis rod, which is arranged parallel to the X-axis, is inserted into the slider 14, and both ends thereof are fixed to the Y-axis driving bodies 52 and 54, respectively. (This Y-axis rod 58 and a pair of Y-axis drivers
52 and 54 constitute a Y-axis moving body which is connected to the pair of Y-axis guides at both ends and is provided so as to be movable in the Y-axis direction. Therefore, the Y-axis rod 58 is orthogonal to the X-axis rod 56 inside the slider 14. The slider 14 also moves in the Y-axis direction as the Y-axis drive bodies 52 and 54, which are prevented from rotating by the Y-axis rod 58, move in the Y-axis direction. This X-axis direction and Y
The combination of the movement in the axial direction allows the slider 14 to move to an arbitrary position within the rectangular plane 60 along an arbitrary locus.
Further, since the X-axis rod 56 and the Y-axis rod 58 are inserted through the slider 14 so as to be orthogonal to each other, the slider 14 cannot rotate on the plane and the directions of the X-axis direction and the Y-axis direction are also unchanged. Further, the first member 10 fixed to the slider 14 is also non-rotatable by this structure, and the orientations in the X-axis direction and the Y-axis direction are also unchanged.

The X-axis rod 56 and the Y-axis rod 58 are preferably metal rods having appropriate rigidity and elasticity.

Reference numeral 62 denotes a gear box provided at each corner of the frame 18, and covers the curved bevel gears and the like.

74 is a second member and is arranged on the upper surface of the main body 308.

A housing 300 is provided on the slider 14 of the swivel mechanism 12, and a Z-axis ball screw 84 that constitutes a contact / separation mechanism 78 is provided inside.
And a screwing portion 302 screwed into the Z-axis ball screw 84 is housed. Rods 304 ... Are hung vertically from the lower surface of the threaded portion 302. The rods 304 ... Penetrate the slider 14 and the lower end is fixed to the upper surface of the first member 10. The Z-axis ball screw 84 is rotated by a Z-axis motor 86 fixed to the housing 300. When the Z-axis ball screw 84 rotates, the threaded portion
Since the rotation of the rod 302 is blocked by the rod 304 ... Penetrating the slider 14, the rod 302 only moves up and down. Therefore, the rotation of the Z-axis ball screw 84 causes the first member 10 to move up and down.

306 ... Polishing member, 4 on the lower surface of the first member 10
A total of 8 pieces are arranged in 2 rows.

On the upper surface of the second member 74 fixed to the upper surface of the main body 308, object-to-be-polished portions 312 ... With lenses 310. It is arranged as follows.

The X-axis motor 24 and the Y-axis motor 38 are driven to rotate the slider 14 and the first mounting portion 10 in a small range, and the Z-axis motor 86
To gradually drive the first mounting portion 10 and the polishing member 306.
・ Move down. Then, the lens 310 ... and the polishing member 306 ...
・ Contact each other, and the polishing member 306 ...
··· Polish. Since the locus pattern of the swing movement of the slider 14 and the first mounting portion 10 can be arbitrarily controlled, various polishing can be performed.

Next, the second embodiment will be described with reference to FIGS. 3 and 4. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The slider 14 of the swing mechanism 12 provided on the upper surface of the main body 308
Also serves as the second member, and the object mounting portion 312 ...
The side turns.

The Z-axis motor 86 of the contact / separation mechanism 78 is an arm 400 and a pole 402.
It is composed of a Z-axis ball screw 84 which is fixed to a main body 308 via a Z-axis and is rotated by a Z-axis motor 86. Z-axis ball screw 84
A suspension portion 404 fixed to the upper surface of the first mounting portion 10 is screwed into the. Rotation of the first mounting portion 10 is blocked by the contact member 406, and the first mounting portion 10 is vertically moved by the rotation of the Z-axis ball screw 84. First mounting part
On the lower surface of 10, polishing members 306 ... Are arranged so as to face the lenses 310.

The X-axis motor 24 and the Y-axis motor 38 are driven to rotate the slider 14 in a small range, and the Z-axis motor 86 is driven to gradually move the first mounting portion 10 and the polishing member 306. .
Then, the lenses 310 ... Mounted facing the polishing members 306 ... And the polishing members 306 ... Contact each other, and the polishing members 30 ... Polish the lenses 310.
The slider 14 of the present embodiment is a frame-shaped body having a hollow center. By using the slider 14 of this shape, it is possible to drop the abrasive used during the polishing operation and the generated polishing powder downward.

The polishing machine according to the present invention can be used not only for polishing a lens but also for polishing and polishing various materials.

Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and, for example, the turning mechanism is provided on both the first member and the second member. Of course, more modifications can be made without departing from the spirit of the invention, for example, by rotating the both in opposite directions to increase the relative rotation speed.

(Effects of the Invention) When the polishing machine according to the present invention is used, the moving body can move the first member or the second member with respect to the second member or the first member without rotating in the plane. You can move along any path (including turning). Therefore, the relative polishing movements between the first member and the second member are the same for all points, and the loci of the relative polishing movements are arbitrarily set corresponding to various polishing conditions. can do.

At this time, according to the present invention, the relative polishing movement is performed by the X-axis moving body linked to the pair of X-axis guides at both ends and the Y-axis moving body linked to the pair of Y-axis guides at both ends. The movement of the moving body due to the synthesis of the movements of the moving body, the moving body always moves at both ends of the X-axis moving body and at both ends of the Y-axis moving body.
Being supported by points. That is, since the load applied to the moving body can be received at four points, the moving body is supported in a very well-balanced and stable state. Therefore, the moving body
It is possible to withstand a high load, prevent rolling and the like, and move with high precision and at high speed. This movement of the moving body has a remarkable effect that an object to be polished can be polished appropriately and efficiently with high precision.

In the polishing machine, it is necessary to relatively move the polishing member and the object to be polished in a state of being brought into contact with each other with a large pressure,
In that state, the precision and efficiency are good, and further, it is necessary to perform polishing in accordance with various polishing conditions, but according to the present invention, all of those requirements can be satisfied.

In this respect, the motion mechanism that moves the moving body to the normal XY is
As in the motion mechanism of the present invention, the moving body cannot be supported at four points,
It is not possible to obtain the same effects as the present invention.

[Brief description of drawings]

FIG. 1 is a front view of the polishing machine of the first embodiment, FIG. 2 is a plan view of the turning mechanism thereof, FIG. 3 is a front view of the polishing machine of the second embodiment, and FIG. 4 is its turning mechanism. Plan view of. 10 ... First member, 12 ... Rotating mechanism, 74 ... Second member, 78 ... Contact / separation mechanism, 306 ... Polishing member, 310 ... Lens, 312 ... Grinding object mounting part .

Claims (1)

(57) [Claims] 1. A pair of X-axis guides arranged parallel to the X-axis direction, a pair of Y-axis guides arranged parallel to the Y-axis direction perpendicular to the X-axis direction, And an X-axis moving body connected to both ends of the X-axis guide so as to be movable in the X-axis direction, and connected to both ends of the pair of Y-axis guides so as to be movable in the Y-axis direction. The Y-axis moving body and the first member or the second member are fixed, and the Y-axis moving body is guided by the X-axis moving body and the Y-axis moving body to be movable in the X-axis direction and the Y-axis direction. And a first member attached to the moving body, and a polishing member or an object-to-be-polished portion attached to the first member, A second member facing the first member, and attached to the second member The object-to-be-polished part or the polishing member, the drive mechanism for driving the moving body, and the first member or the second member with respect to the second member or the first member. And a moving mechanism for moving the polishing machine.