阅读说明：本技术 一种用于光学定心仪的调整装置 (adjusting device for optical centering instrument ) 是由 雷昱 康世发 付兴 王鹏 于 2019-08-23 设计创作，主要内容包括：本发明涉及一种用于光学定心仪的调整装置,旨在解决现有技术对光学定心仪的调整精度低且操作不便的问题,实现在光学定心加工过程中快速准确的调整光学定心仪的平移量和倾斜角度,提高定心加工的效率。本发明包括四维调整机构、连接架以及转接架；四维调整机构包括由上至下依次设置的X轴角度调整台、Y轴角度调整台、X轴平移调整台和Y轴平移调整台；Y轴平移调整台的下端通过连接架与立式车床上端平台连接,所述X轴角度调整台的上端通过转接架与光学定心仪连接,光学定心仪位于Y轴平移调整台的下方。该结构将光学定心仪与四维调节机构连接在一起,通过对四维调节机构的调节,可以实现对光学定心仪两个方向平移和两个方向角度的调整。(the invention relates to an adjusting device for an optical centering instrument, aiming at solving the problems of low adjusting precision and inconvenient operation of the optical centering instrument in the prior art, realizing the rapid and accurate adjustment of the translation amount and the inclination angle of the optical centering instrument in the optical centering machining process and improving the centering machining efficiency. The invention comprises a four-dimensional adjusting mechanism, a connecting frame and a switching frame; the four-dimensional adjusting mechanism comprises an X-axis angle adjusting table, a Y-axis angle adjusting table, an X-axis translation adjusting table and a Y-axis translation adjusting table which are sequentially arranged from top to bottom; the lower end of the Y-axis translation adjusting table is connected with the upper end platform of the vertical lathe through a connecting frame, the upper end of the X-axis angle adjusting table is connected with an optical centering instrument through a switching frame, and the optical centering instrument is located below the Y-axis translation adjusting table. The structure connects the optical centering instrument with the four-dimensional adjusting mechanism, and the adjustment of the two-direction translation and the two-direction angle of the optical centering instrument can be realized through the adjustment of the four-dimensional adjusting mechanism.)

1. an adjustment device for an optical centering apparatus, characterized in that: comprises a four-dimensional adjusting mechanism (2), a connecting frame (4) and a switching frame (10);

The four-dimensional adjusting mechanism (2) comprises an X-axis angle adjusting table (25), a Y-axis angle adjusting table (26), an X-axis translation adjusting table (27) and a Y-axis translation adjusting table (28) which are sequentially arranged from top to bottom;

the lower end of the Y-axis translation adjusting table (28) is connected with an upper end platform (3) of the vertical lathe through a connecting frame (4), the upper end of the X-axis angle adjusting table (25) is connected with an optical centering instrument (9) through a switching frame (10), and the optical centering instrument (9) is located below the Y-axis translation adjusting table (28).

2. An adjustment device for an optical centring device according to claim 1, characterized in that:

the switching frame (10) comprises an upper transverse plate (101), a switching vertical plate (102) and a lower transverse plate (103);

The upper transverse plate (101) and the lower transverse plate (103) are positioned on the same side of the transfer vertical plate (102), and one ends of the upper transverse plate (101) and the lower transverse plate (103) are respectively and vertically connected with two ends of the transfer vertical plate (102);

the upper end of the X-axis angle adjusting table (25) is connected with the lower end face of the upper transverse plate (101);

The optical centering instrument (9) is connected with the lower end face of the lower transverse plate (103).

3. An adjustment device for an optical centring device according to claim 1 or 2, characterized in that: the connecting frame (4) comprises a top plate (41), a connecting vertical plate (42) and a bottom plate (43);

the top plate (41) and the bottom plate (43) are respectively positioned at two sides of the connecting vertical plate (42), and two ends of the top plate (41) and the bottom plate (43) are respectively vertically connected with two ends of the connecting vertical plate (42);

The top plate (41) is connected with the upper end platform (3) of the vertical lathe, and the upper end face of the bottom plate (43) is connected with the lower end of the Y-axis translation adjusting table (28).

4. an adjustment device for an optical centring device according to claim 2, characterized in that:

Two strip holes (1031) which are parallel to each other are formed in the lower transverse plate (103), two fastening screws (1032) are arranged in each strip hole (1031), and the optical centering instrument (9) is connected with the lower end face of the lower transverse plate (103) through the fastening screws (1032).

5. An adjustment device for an optical centraliser according to claim 3, wherein:

The X-axis angle adjusting table (25) and the Y-axis angle adjusting table (26) have the same structure, the direction of an angle adjusting central shaft is vertical, and the adjusting range is-10 degrees to 10 degrees;

the X-axis translation adjusting table (27) and the Y-axis translation adjusting table (28) are identical in structure, mutually perpendicular in translation direction and in adjustment ranges of-37.5 mm to 37.5 mm.

6. An adjustment device for an optical centring device according to claim 5, characterized in that: two reinforcing rib plates (44) are arranged between the connecting vertical plate (42) and the bottom plate (43).

Technical Field

the invention relates to an optical centering instrument, in particular to an adjusting device for the optical centering instrument.

Background

The optical centering instrument is a commonly used instrument in the optical centering processing process, and has the function of ensuring the optical centering processing precision by monitoring the shaking amount of a spherical center self-alignment image of an optical element.

the centering process of the large-aperture optical lens group is generally carried out on a vertical lathe, and an optical centering instrument is hung at the upper end of the lathe to monitor the spherical center auto-collimation image. The whole centering processing process is as follows:

Firstly, a circular plane reflector is placed on a lathe turntable, and a cross wire is carved at the center of the reflector. The position of the reflector is adjusted to ensure that the radial runout and the end surface runout of the reflector are less than 0.05mm when the rotary table rotates.

And secondly, adjusting the translation and the inclination of the optical centering instrument, finding a cross-hair image at the center of the plane reflector in the ocular lens, ensuring that the shaking amount of the image is less than 0.01mm, and ensuring that the optical axis of the centering instrument is basically vertical to a rotary table of the machine tool and passes through the center.

And thirdly, placing the optical lens group to be processed on a rotary table of the machine tool, roughly adjusting the position of the optical lens group and monitoring by using a dial indicator, and ensuring that the radial and end surface jumping of the optical lens group is less than 0.05mm when the rotary table rotates.

Fourthly, adjusting the translation and the inclination of the optical centering instrument: the spherical center auto-collimation image of the optical lens group to be processed is searched in an ocular lens of the optical centering instrument, then the position of the optical lens group is finely adjusted, the shaking amount of the auto-collimation image is ensured to be within 0.005mm, and the optical axis of the optical lens group is considered to be coincident with the rotating shaft of the machine tool at the moment.

And fifthly, after the position of the optical lens group is adjusted, centering and processing the end face and the radial part.

The second step and the fourth step in the above five steps need to adjust the translation and the inclination of the optical centering instrument, the traditional method is realized by adjusting the position of a fixing bolt of the optical centering instrument in a rectangular slotted hole, and the method has low precision and inconvenient operation, so that an adjusting device with simple operation and high precision needs to be designed at present.

Disclosure of Invention

the invention provides an adjusting device for an optical centering instrument, which aims to solve the problems of low adjusting precision and inconvenient operation of the optical centering instrument in the prior art, realize quick and accurate adjustment of the translation amount and the inclination angle of the optical centering instrument in the optical centering machining process and improve the centering machining efficiency.

in order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the invention relates to an adjusting device for an optical centering instrument, which is characterized in that: comprises a four-dimensional adjusting mechanism, a connecting frame and a switching frame;

The four-dimensional adjusting mechanism comprises an X-axis angle adjusting table, a Y-axis angle adjusting table, an X-axis translation adjusting table and a Y-axis translation adjusting table which are sequentially arranged from top to bottom;

The lower end of the Y-axis translation adjusting table is connected with the upper end platform of the vertical lathe through a connecting frame, the upper end of the X-axis angle adjusting table is connected with an optical centering instrument through a switching frame, and the optical centering instrument is located below the Y-axis translation adjusting table.

Two translation adjusting tables and two angle adjusting tables are stacked and installed together to form a four-dimensional adjusting mechanism, and a unique connecting structure is designed according to the structural characteristics of the optical centering instrument. The structure connects the optical centering instrument with the four-dimensional adjusting mechanism, can realize the adjustment of the two-direction translation and the two-direction angle of the optical centering instrument through the adjustment of the four-dimensional adjusting mechanism, has a self-locking function, and can align the optical centering instrument with an optical part to be processed.

Through reasonable structural design, the optical centering instrument can not interfere with other structures at any limit position, and complete adjustment of the four-dimensional adjusting function within the full range is ensured.

Furthermore, the switching frame comprises an upper transverse plate switching vertical plate and a lower transverse plate;

The upper transverse plate and the lower transverse plate are positioned on the same side of the switching vertical plate, and one ends of the upper transverse plate and the lower transverse plate are respectively and vertically connected with two ends of the switching vertical plate;

the upper end of the X-axis angle adjusting table is connected with the lower end face of the upper transverse plate;

The optical centering instrument is connected with the lower end face of the lower transverse plate.

Furthermore, the connecting frame comprises a top plate, a connecting vertical plate and a bottom plate;

the top plate and the bottom plate are respectively positioned at two sides of the connecting vertical plate, and two ends of the top plate and the bottom plate are respectively vertically connected with two ends of the connecting vertical plate;

The top plate is connected with an upper end platform of the vertical lathe, and the upper end surface of the bottom plate is connected with the lower end of a Y-axis translation adjusting table (28).

Furthermore, two strip holes which are parallel to each other are formed in the lower transverse plate, two fastening screws are arranged in each strip hole, and the optical centering instrument is connected with the lower end face of the lower transverse plate through the fastening screws.

Furthermore, the X-axis angle adjusting table and the Y-axis angle adjusting table have the same structure, the directions of the angle adjusting central shafts are vertical, the adjusting ranges are all-10 degrees, and the X-axis angle adjusting table and the Y-axis angle adjusting table belong to standard products;

The X-axis translation adjusting table and the Y-axis translation adjusting table are identical in structure, mutually perpendicular in translation direction, and all of the adjustment ranges are-37.5 mm and belong to standard products.

the X-axis angle adjusting table, the Y-axis angle adjusting table, the X-axis translation adjusting table and the Y-axis translation adjusting table are all provided with adjusting knobs and locking functions, the optical centering instrument can be adjusted in four dimensions by rotating the adjusting knobs of the adjusting tables, and the operation is very simple and convenient.

Furthermore, two reinforcing rib plates are arranged between the connecting vertical plate and the bottom plate.

The invention has the beneficial effects that:

1. According to the invention, the optical centering instrument is connected with the four-dimensional adjusting mechanism through the switching frame, and the optical centering instrument, the four-dimensional adjusting mechanism and the upper end platform of the vertical lathe are connected through the connecting frame, so that the optical centering instrument can perform translation adjustment in two directions and angle adjustment in two directions through the four-dimensional adjusting mechanism, an operator can conveniently and reliably adjust the posture of the optical centering instrument through the adjusting knob on the adjusting platform, and quickly find the spherical center image of the mirror surface to be machined, thereby improving the centering machining efficiency, being simple to operate, having no influence on the adjustment in four dimensions, being stable in adjustment and high in precision.

2. the optical centering instrument is connected into a C-shaped plate through the upper transverse plate, the switching vertical plate and the lower transverse plate, the upper transverse plate is connected with the four-dimensional adjusting mechanism, the lower transverse plate is connected with the optical centering instrument, and the upper transverse plate is adjusted accordingly when the four-dimensional adjusting mechanism is adjusted and drives the lower transverse plate to adjust, so that the optical centering instrument can perform four-dimensional adjustment, and the optical centering instrument is simple in structure, practical and easy to manufacture.

3. the invention forms a Z-shaped connecting frame by the top plate, the connecting vertical plate and the bottom plate, is used for installing the four-dimensional adjusting mechanism and the optical centering instrument on the upper end platform of the vertical lathe, and has simple structure, practicality and easy manufacture.

4. the lower transverse plate is also provided with two strip holes, the strip holes are penetrated by the set screws to be connected with the optical centering instrument, and the mounting position of the optical centering instrument can be adjusted in use, so that the adjusting precision of the device is further improved.

5. The angle adjusting range of the centering instrument is as follows: the adjustment requirements of centering processing are completely met by winding the X axis by minus 10 degrees to 10 degrees, winding the Y axis by minus 10 degrees to 10 degrees, translating the adjustment range in the X direction by minus 37.5mm to 37.5mm and translating the adjustment range in the Y direction by minus 37.5mm to 37.5 mm.

6. two reinforcing rib plates are arranged between the connecting vertical plate and the bottom plate, so that the four-dimensional adjusting mechanism and the optical centering instrument are more reliably installed.

Drawings

FIG. 1 is a schematic view of the four-dimensional adjusting device of the present invention mounted on a vertical lathe;

FIG. 2 is a schematic perspective view of the four-dimensional adjustment mechanism of the present invention;

FIG. 3 is a diagram of the adjustment state of the four-dimensional adjustment device of the present invention;

Fig. 4 is a state diagram of the four-dimensional adjusting device of the present invention adjusted to the extreme position.

In the figure, the position of the upper end of the main shaft,

1-vertical lathe;

2-four-dimensional adjusting mechanism, 25-X axis angle adjusting table, 26-Y axis angle adjusting table, 27-X axis translation adjusting table and 28-Y axis translation adjusting table;

3-vertical lathe upper end platform;

4-connecting frame, 41-top plate, 42-connecting vertical plate, 43-bottom plate, 44-reinforcing rib plate;

9-optical centering device;

10-an adapter rack, 101-an upper transverse plate, 102-an adapter vertical plate and 103-a lower transverse plate;

1031-elongated hole, 1032-set screw;

11-X axis movable seat, 12-X axis base, 22-Y axis movable seat and 24-Y axis base.

Detailed Description

to make the objects, advantages and features of the present invention more apparent, an adjusting device for an optical centering apparatus according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following detailed description. It should be noted that: the drawings are in simplified form and are not to precise scale, the intention being solely for the convenience and clarity of illustrating embodiments of the invention; second, the structures shown in the drawings are often part of actual structures.

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.