Adjustable autocollimator

Abstract

The utility model relates to the field of lens centering turning, in particular to an autocollimator device fixed on a tailstock, which comprises the following components: a tailstock which is slidably arranged on a machine tool and is provided with an arc-shaped groove; and the autocollimator main body is arranged in the arc-shaped groove, the optical axis of the autocollimator main body coincides with the axis of the main shaft of the machine tool, and a two-dimensional adjusting seat is arranged on the autocollimator main body. The adjustable autocollimator provided by the utility model has the advantages of compact structure, simple operation, stable work and high adjusting precision, and is beneficial to the improvement of the processing quality and the improvement of the processing efficiency.

Description

Technical Field

[0001] The utility model relates to the field of lens centering turning processing, in particular to a device of an autocollimator fixed on a tailstock. Background Art

[0002] The autocollimator equipment can refer to the Chinese utility model patent with application number CN202321198778.9 and name "A high-stability autocollimator". In the field of optical component processing and manufacturing systems, the alignment of the optical axis of the autocollimator and the rotation axis of the machine tool is an important link. In particular, it is necessary to ensure that the optical axis of the autocollimator is coaxial or parallel when measuring the position of the spherical center image of the lens, and the imaging is required to be stable and repeatable and accurate. When the lens is mounted on the fixture, the optical axis of the spherical center image of the lens is fitted to form a certain angle with the axis of the machine tool spindle, and the spherical center image collected by the autocollimator deviates from the display, so it needs to be adjusted. The existing installation form of the autocollimator is cumbersome and low in precision during adjustment, which is not conducive to improving the processing quality and efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an adjustable autocollimator which is simple to operate and convenient to adjust.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an adjustable autocollimator, comprising:

[0005] The tailstock is slidably arranged on the machine tool and has an arc groove;

[0006] The autocollimator body is arranged in the arc groove, the optical axis of the autocollimator body coincides with the main axis of the machine tool, and a two-dimensional adjustment seat is arranged on the autocollimator body.

[0007] Furthermore, the machine tool is provided with a screw and a guide rail, the screw is threadedly connected to the movable plate, the movable plate is slidably connected to the guide rail, and the tailstock is arranged on the movable plate.

[0008] Furthermore, it also includes a mounting seat, and the tail seat is located on both sides of the arc groove and is provided with a locking hole group, the mounting seat is locked with the locking hole group, and the autocollimator body is fixed in the arc groove through the mounting seat.

[0009] Furthermore, the two-dimensional adjustment seat includes a fixed seat, one end of which is connected to the autocollimator body, the other end of which is provided with an objective lens assembly, and the side wall of the fixed seat is provided with an adjustment handle and a spring plunger, both of which are in contact with the objective lens assembly.

[0010] Furthermore, the two adjustment handles and a spring plunger are evenly distributed along the circumferential direction on the side wall of the fixing seat.

[0011] Furthermore, one end of the fixing seat is provided with an external thread, and a locking ring is provided on the external thread.

[0012] Furthermore, a protective cover is provided at the other end of the fixing seat, and the objective lens assembly is arranged on the protective cover.

[0013] The beneficial effects of the utility model are: an adjustable autocollimator, using the movable tailstock on the machine tool as the moving mechanism of the autocollimator body on the machine tool, fixing the autocollimator body on the tailstock and moving with the tailstock, so that the optical axis of the autocollimator coincides with the axis of the machine tool spindle, thereby realizing the detection of the position of the lens spherical center image and the eccentricity detection, using the two-dimensional adjustment seat to detect the lens spherical center image in a large range before lens processing, which is suitable for lens centering, leveling and image finding. The adjustable autocollimator provided by the utility model is not only compact in structure and simple in operation, but also stable in operation and high in adjustment accuracy, which is conducive to improving processing quality and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of an adjustable autocollimator;

[0015] Figure 2 is another structural schematic diagram of an adjustable autocollimator;

[0016] Figure 3 It is a structural schematic diagram of a two-dimensional adjustment seat;

[0017] Figure 4 is a cross-sectional view of a two-dimensional adjustment seat;

[0018] Description of labels:

[0019] 1. Tail stock; 11. Arc groove; 111. Locking hole group; 12. Mounting seat; 2. Moving plate; 3. Autocollimator body; 4. Two-dimensional adjustment seat; 41. Fixed seat; 411. External thread; 412. Locking ring; 413. Protective cover; 42. Objective lens assembly; 43. Adjustment handle; 44. Spring plunger. DETAILED DESCRIPTION

[0020] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0021] The utility model provides an adjustable autocollimator used in an optical element processing and manufacturing system.

[0022] Please refer to Figures 1 to 4 As shown, an adjustable autocollimator of the utility model comprises:

[0023] A tailstock 1 is slidably arranged on the machine tool, and an arc groove 11 is arranged on the tailstock 1;

[0024] The autocollimator body 3 is arranged in the arc groove 11 , the optical axis of the autocollimator body 3 coincides with the main axis of the machine tool, and a two-dimensional adjustment seat 4 is arranged on the autocollimator body 3 .

[0025] From the above description, it can be seen that the beneficial effects of the utility model are: an adjustable autocollimator, using the movable tailstock 1 on the machine tool as the moving mechanism of the autocollimator body 3 on the machine tool, fixing the autocollimator body 3 on the tailstock 1 and moving with the tailstock 1, so that the optical axis of the autocollimator coincides with the axis of the machine tool spindle, thereby realizing the detection of the position of the lens spherical center image and the eccentricity detection, using the two-dimensional adjustment seat 4 to detect the lens spherical center image in a large range before lens processing, which is suitable for lens centering, leveling and image finding. The adjustable autocollimator provided by the utility model is not only compact in structure and simple in operation, but also stable in operation and high in adjustment accuracy, which is conducive to improving processing quality and efficiency.

[0026] In an optional embodiment, the machine tool is provided with a screw and a guide rail, the screw is threadedly connected to the movable plate 2, the movable plate 2 is slidably connected to the guide rail, and the tailstock 1 is arranged on the movable plate 2.

[0027] From the above description, it can be seen that the movable plate 2 is mounted on the screw nut of the machine tool and moves with the screw under the guidance of the guide rail, so that the position positioning and repeated positioning of the measured spherical center image are highly accurate.

[0028] In an optional embodiment, a mounting seat 12 is further included. The tail stock 1 is provided with locking hole groups 111 on both sides of the arc groove 11. The mounting seat 12 is locked with the locking hole groups 111. The autocollimator body 3 is fixed in the arc groove 11 through the mounting seat 12.

[0029] From the above description, it can be known that the autocollimator body 3 is clamped in the arc groove 11 under the limiting effect of the mounting seat 12, and the mounting seat 12 can be locked with different lock holes of the lock hole group 111 as needed, so as to adjust the installation position on the tailstock 1.

[0030] In an optional embodiment, the two-dimensional adjustment seat 4 includes a fixed seat 41, one end of the fixed seat 41 is connected to the autocollimator body 3, the other end of the fixed seat 41 is provided with an objective lens assembly 42, and the side wall of the fixed seat 41 is provided with an adjustment handle 43 and a spring plunger 44, and the adjustment handle 43 and the spring plunger 44 are both in contact with the objective lens assembly 42.

[0031] From the above description, it can be seen that the fixed seat 41 is connected to the autocollimator body 3, and the objective lens and the objective lens seat are installed at its free end. The objective lens is connected to the objective lens seat, and the objective lens seat can move in the fixed seat 41. The spring plunger 44 and the end of the adjustment handle 43 support the outer diameter of the objective lens seat.

[0032] In an optional embodiment, the two adjustment handles 43 and a spring plunger 44 are evenly distributed along the circumferential direction on the side wall of the fixing seat 41 .

[0033] It can be seen from the above description that the spring plunger 44 and the adjustment handle 43 are respectively arranged at three threaded holes on the surface of the fixing seat 41, and are evenly distributed and adjacent.

[0034] In an optional embodiment, an external thread 411 is provided at one end of the fixing seat 41 , and a locking ring 412 is provided on the external thread 411 .

[0035] From the above description, it can be known that the fixing seat 41 is hollow, has a thread at one end, and is connected with a locking ring 412 .

[0036] In an optional embodiment, a protective cover 413 is provided at the other end of the fixing seat 41 , and the objective lens assembly 42 is disposed on the protective cover 413 .

[0037] From the above description, it can be known that the objective lens seat is arranged between the fixing seat 41 and the protective cover 413 , an annular groove is arranged on the outer side of the objective lens seat, and the objective lens seat moves in the space formed by the protective cover 413 and the fixing seat 41 .

[0038] The working principle of the utility model is as follows: the lens to be centered is fixed on the main axis of the machine tool, the autocollimator optical software calculates the position of the spherical center image of the lens to be processed relative to the vertex image, and the autocollimator body 3 moves to the corresponding position under the control of the machine tool human-machine interface. The image display area of ​​the autocollimator optical software will have a cross cursor and an energy bar of the cross cursor clarity. When the clearest spherical center image is found, the cross cursor is the clearest and the energy bar is the highest. At this time, the corresponding spherical center image position coordinates can be input in the human-machine interface. The optical axis of the lens is at a large angle with the axis of the main axis of the machine tool. At this time, when the spherical center image is at the edge or exceeds the position in the display area of ​​the autocollimator optical software, the fine-tuning adjustment handle 43 is used to adjust the handle 43 to move against the objective lens seat, and the objective lens seat compresses the spring plunger 44, thereby pulling the cross cursor back to the center area of ​​the display area.

[0039] Please refer to Figures 1 to 4 As shown, the first embodiment of the utility model is: an adjustable autocollimator, comprising:

[0040] A tailstock 1 is slidably arranged on the machine tool, and an arc groove 11 is arranged on the tailstock 1;

[0041] The autocollimator body 3 is arranged in the arc groove 11 , the optical axis of the autocollimator body 3 coincides with the main axis of the machine tool, and a two-dimensional adjustment seat 4 is arranged on the autocollimator body 3 .

[0042] The machine tool is provided with a screw and a guide rail, the screw is threadedly connected with the moving plate 2, the moving plate 2 is slidably connected with the guide rail, and the tailstock 1 is arranged on the moving plate 2. It also includes a mounting seat 12, the tailstock 1 is located on both sides of the arc groove 11 and is provided with a lock hole group 111, the mounting seat 12 is locked with the lock hole group 111, and the autocollimator body 3 is fixed in the arc groove 11 through the mounting seat 12. The two-dimensional adjustment seat 4 includes a fixed seat 41, one end of the fixed seat 41 is connected with the autocollimator body 3, the other end of the fixed seat 41 is provided with an objective lens assembly 42, the side wall of the fixed seat 41 is provided with an adjustment handle 43 and a spring plunger 44, and the adjustment handle 43 and the spring plunger 44 are both in contact with the objective lens assembly 42. Two of the adjustment handles 43 and a spring plunger 44 are evenly distributed along the circumferential direction on the side wall of the fixed seat 41. One end of the fixed seat 41 is provided with an external thread 411, and a locking ring 412 is provided on the external thread 411. A protective cover 413 is disposed at the other end of the fixing seat 41 , and the objective lens assembly 42 is disposed on the protective cover 413 .

[0043] In summary, the adjustable autocollimator of the utility model utilizes the movable tailstock on the machine tool as the moving mechanism of the autocollimator body on the machine tool, fixes the autocollimator body on the tailstock and moves with the tailstock, so that the optical axis of the autocollimator coincides with the axis of the machine tool spindle, thereby realizing the detection of the position of the lens spherical center image and the eccentricity detection, and utilizing the two-dimensional adjustment seat to detect the lens spherical center image in a large range before lens processing, which is suitable for lens centering, leveling and image finding. The adjustable autocollimator provided by the utility model is not only compact in structure and simple in operation, but also stable in operation and high in adjustment accuracy, which is conducive to improving processing quality and efficiency.

[0044] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An adjustable autocollimator, characterized in that: include: The tailstock is slidably arranged on the machine tool and has an arc groove; The autocollimator body is arranged in the arc groove, the optical axis of the autocollimator body coincides with the main axis of the machine tool, and a two-dimensional adjustment seat is arranged on the autocollimator body.

2. The adjustable autocollimator according to claim 1, characterized in that: The machine tool is provided with a screw rod and a guide rail, the screw rod is threadedly connected with a movable plate, the movable plate is slidably connected with the guide rail, and the tailstock is arranged on the movable plate.

3. The adjustable autocollimator according to claim 1, characterized in that: It also includes a mounting seat, and the tail seat is located on both sides of the arc groove and is provided with a locking hole group, the mounting seat is locked with the locking hole group, and the autocollimator body is fixed in the arc groove through the mounting seat.

4. The adjustable autocollimator according to claim 1, characterized in that: The two-dimensional adjustment seat includes a fixed seat, one end of which is connected to the autocollimator body, the other end of which is provided with an objective lens assembly, and the side wall of the fixed seat is provided with an adjustment handle and a spring plunger, both of which are in contact with the objective lens assembly.

5. The adjustable autocollimator according to claim 4, characterized in that: The two adjusting handles and a spring plunger are evenly distributed along the circumferential direction on the side wall of the fixing seat.

6. The adjustable autocollimator according to claim 4, characterized in that: One end of the fixing seat is provided with an external thread, and a locking ring is provided on the external thread.

7. The adjustable autocollimator according to claim 4, characterized in that: The other end of the fixing seat is provided with a protective cover, and the objective lens assembly is arranged on the protective cover.

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