KR19990033606U - Position setting structure for center shaft of the optical lens grinding machine - Google Patents

Abstract

The present invention relates to a center axis position adjusting structure of the optical lens grinder, the spindle 33 is installed below the worktable 31 and both sides are axially oscillated to a predetermined range by the power of the motor, and has an abrasive cover 35. A center shaft 40 provided to compress the lens mounted on the spindle 33 by one spindle box 32 and a piston rod 43 positioned above the spindle 33 and operated up and down by the air cylinder 42. In the optical lens grinding machine having a), a cylinder inserting portion (11c) to which the air cylinder 42 is mounted, and a bolt (B) which is integral with the cylinder inserting portion (11c) and fastened thereto at each corner adjacent portion thereof. The first guide block 11 consisting of a flange (11a) having a plurality of through holes (11b) larger than the body diameter of the) and the flange (11a) of the first guide block 11 is mounted and the first guide A fastening hole 12a corresponding to the through hole 11b of the block 11; It characterized in that it comprises a second guide block 12 is connected to the air cylinder 39 of the tooth 38. The present invention is easy to set the center of the optical lens polisher because it adjusts the fine vertical, horizontal, left and right positions of the first guide block 11 and the second guide block 12 by simply loosening or tightening the adjustment bolt. It has a convenient effect.

Description

POSITION SETTING STRUCTURE FOR CENTER SHAFT OF THE OPTICAL LENS GRINDING MACHINE}

The present invention relates to an optical lens grinder, and in particular, the center of an optical lens grinder which enables fine positioning of the center axis by adjusting the vertical, horizontal, left and right angles of the guide block mounted on the center axis of the optical lens grinder. A shaft positioning structure.

In general, the manufacture of optical lenses (lens) used in optical devices such as cameras, compact disk drivers, facsimile and sights, endoscopes, and telescopes generally rough-cut materials of a predetermined size. Finishing is performed through the process of grinding and finishing the surface.

The optical lens grinder to which the present invention is applied is a device for grinding a lens that has been cut and rough cut, and in particular, sets a center spindle to press the material on a vertical line and rotates a spindle to rotate downward. The spindle is designed to swing around the center. It is mainly used to place many small workpieces and process them at the same time.

FIG. 7 is a side view showing a conventional optical lens grinder in a partial cross section. Referring to its basic configuration, a spindle box 32 having a spindle 33 mounted below the work bench 31 is provided. The front side is provided with a spindle motor 34 to provide a rotational power to the spindle 33, and the upper portion of the spindle box 32 is provided with a polishing oil cover 35 protruding part. The spindle box 32 is axially both sides, and is configured to swing in a predetermined range by receiving power from the motor 36 and the reducer 37 installed on one side.

On the other hand, the upper portion of the workbench 31 is provided with a center shaft 40, the center shaft 40 is connected to the inside of the mounting table 38 installed in the rear of the workbench 31, the guide block (up and down) 41, a guide block and an air cylinder 42 vertically arranged on the guide block 41. The air cylinder 42 has a piston rod 43 drawn out at its tip, which piston rod 43 is always located above the above-described spindle 33 and is not shown in the pressing holder (Holder), etc. Will be fitted.

The center shaft 40 configured as described above includes a signal gauge 44, a micrometer 45, a pressure regulating plate 46, and the like. In FIG. 4, reference numeral 39 denotes a vertical movement of the guide block 41. Air cylinder

The conventional optical lens grinder configured as described above combines a tool (not shown) on the upper part of the spindle 33, and then puts the lens to be ground and operates the device. The spindle 33 receives the rotational force of the spindle motor 34. ) Is rotated, the air cylinder 42 of the center shaft 40 is operated to lower the piston rod 43. The front end portion of the piston rod 43 equipped with the pressing holder is in a state in which the lens is pressed. At this time, the spindle motor 34 is operated to rotate the spindle 33, and the motor 36 and the reducer 37 also operate to swing the spindle box 32 at a predetermined angle so that grinding of the lens is evenly performed. At this time, an abrasive oil supply nozzle (not shown) is positioned inside the abrasive oil cover 35 to supply the abrasive oil to the lens.

When the operator turns off the operation switch, the piston rod 43 of the center shaft 40 is raised again and the rotation of the spindle 33 is stopped. The operator repeats the operation according to the above process by lifting the finished lens from the spindle 33 and placing the lens to be ground again on the spindle 33.

Meanwhile, in the related art, the guide block 41 of the center shaft 40 on which the air cylinder 42 is mounted is only movable up and down by the air cylinder 39 of the mounting table 38, so that the guide block 41 It is provided to set up and down position.

However, the center axis positioning of the above-described conventional structure merely controls the up and down operation of the center shaft 40, and thus there is a problem in that the center shaft 40 is not accurately positioned.

That is, in the related art, the center shaft 40 is moved upward and downward by using the guide block transfer air cylinder 39 to set the position. When the center does not fit, the center is adjusted by adjusting a tool installed on the spindle 33. Setting. However, this was to replace the tool with another if the desired center setting is not available.

However, this city also lacked accurate positioning, and therefore, it was difficult to get an accurate center.

Accordingly, the present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a center axis angle adjusting structure of an optical lens grinder capable of adjusting a fine angle in left and right directions of a center axis.

1 is a side view of an essential part of an applied lens polishing apparatus of the present invention;

Figure 2 is an exemplary view illustrating a guide block disassembled state according to the present invention,

3 is a cross-sectional view of the coupled state of FIG.

4 is a cross-sectional view taken along the line A-A of FIG.

Figure 5 is an enlarged front view of a part of the guide block illustrating an operating state of the present invention,

6 is an exemplary view showing another embodiment of the present invention,

7 is a side view showing the configuration of a conventional optical lens grinder in a partial cross section.

(Explanation of symbols for the main parts of the drawing)

10; Guide block 11; 1st guide block

11a; Flange 11b; Through

12; Second guide block 12a; Fastener

B; volt

In order to achieve the above object, the present invention has a spindle 33 installed below the workbench 31 and both sides thereof are axially oscillated to a predetermined range by the power of a motor, and the spindle box 32 having an abrasive cover 35 and And an optical lens grinder having a center shaft 40 which is positioned above the spindle 33 and presses the lens mounted on the spindle 33 with a piston rod 43 which is operated up and down by an air cylinder 42. To

The cylinder inserting portion (11c) to which the air cylinder 42 is mounted, and a plurality of through holes larger than the body diameter of the bolt (B) which is integral with the cylinder inserting portion (11c) and fastened thereto at each corner adjacent portion ( A first guide block 11 formed of a flange 11a provided with 11b);

The flange 11a of the first guide block 11 is mounted and has a fastening hole 12a connected to the through hole 11b of the first guide block 11. The air cylinder 39 of the mounting table 38 is provided. The second guide block 12 is connected to;

It provides a center axis angle adjustment structure of the optical lens grinding machine comprising a.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. The same parts as in the related art are denoted by the same reference numerals.

1 is a side view of the main part of the lens polishing apparatus applied in the present invention, the present invention is to form a guide block 10 to adjust the left and right fine angle of the center axis (40).

FIG. 2 is a perspective view illustrating only the guide block 10 in an exploded state. The guide block 10 includes a first guide block 11 on which the air cylinder 42 of FIG. 1 is mounted, and the first guide block 10. It consists of the 2nd guide block 12 to which (11) is mounted.

The second guide block 12 is connected to move up and down by a piston rod (not shown) of the air cylinder 39 below the mounting table 38 in FIG. 12a).

The first guide block 11 is provided with respective through holes 11b at edges adjacent to each of the flanges 11a.

The through hole 11b of the first guide block 11 is slightly larger in diameter than the fastening hole 12a of the second guide block 12. The difference in diameter may exemplify about 2 mm, and in this embodiment, four is set.

And as shown in Figure 3, the bolt (B) is fastened to the through hole (11b) and the fastening hole (12a), as shown in FIG. The through hole (11b) formed in the flange (11a) of the first guide block 11 is fastened to a predetermined gap (G) than the diameter of the fastening hole (12a) and bolt (B) of the second guide block 12 As big as it is. In other words, when the tightening state of the bolt (B) is loosened, it is possible to move up, down, left and right as much as the gap (G).

The present invention formed as described above is used to perform finer positioning after setting the position of the center shaft 40 to some extent. That is, as shown in Figure 5 showing an enlarged front view of a part of the guide block illustrating the working state of the present invention, the first guide block 11 in a state in which the four bolts (B) in front loosened using a wrench By moving to the desired position it is possible to move the position of the first guide block 11 by the gap (G) of the through hole (11b) is to enable a fine position adjustment.

At this time, if only the upper portion of the first guide block 11 is moved to one side, the upper and lower angles can be converted in a fixed state, and on the contrary, only the lower portion is fixed to the one side when the upper portion of the first guide block 11 is fixed. By moving it, the left and right angle conversion in the downward direction can be achieved.

That is, the angle conversion becomes flexible depending on which of the four bolts (B) is fixed and which one is moved. As described above, when the position of the first guide block 11 is changed and the setting of the desired center axis is made, each bolt is again obtained. Tighten (B) to fix the set position.

Thus, the configuration of the present invention is to adjust the fine position movement and the left and right angles of the first guide block 11 by loosening or tightening the fastened bolt (B), which is used to set the center of the center shaft 40 do.

6 is an exemplary view showing another embodiment of the present invention, and may be more usefully used when the second guide block 12 includes two first guide blocks 11 and 11 '. That is, when adjusting the centers of the two air cylinders mounted on the first guide blocks 11 and 11 ', the positions of the first guide blocks 11 and 11' can be set individually, which is more advantageous for setting. .

As described above, the present invention simply adjusts the fine vertical, horizontal, left and right positions of the first guide block by loosening or tightening the adjustment bolt, thereby making it easy and convenient to set the center of the optical lens polisher. This results in a reduction in the defective rate of the lens produced and has the effect of improving the productivity.

Claims (1)

The spindle 33 is installed below the worktable 31 and both sides thereof are axially oscillated by a power of a motor, and the spindle box 32 having an abrasive cover 35 and an upper side of the spindle 33. In the optical lens grinder having a center shaft 40, which is provided to squeeze the lens mounted on the spindle 33 with a piston rod 43 positioned up and down by the air cylinder 42, The cylinder inserting portion (11c) to which the air cylinder 42 is mounted, and a plurality of through holes larger than the body diameter of the bolt (B) which is integral with the cylinder inserting portion (11c) and fastened thereto at each corner adjacent portion ( A first guide block 11 formed of a flange 11a provided with 11b); The flange 11a of the first guide block 11 is mounted and has a fastening hole 12a connected to the through hole 11b of the first guide block 11. The air cylinder 39 of the mounting table 38 is provided. The second guide block 12 is connected to; Center axis angle adjustment structure of the optical lens grinding machine comprising a.