CN221967617U - Milling and grinding device for off-axis aspheric mirror - Google Patents

Abstract

The utility model discloses a milling device for off-axis aspheric mirrors, belonging to the technical field of optical glass processing, comprising a base, a hollow disk fixed horizontally on the top of the base, a turntable fixed at the middle position of the top of the hollow disk, and a strip groove opened along the radial direction at the middle position of the bottom of the turntable. The utility model sets a strip groove at the bottom of the turntable, and installs a rotating motor below the first slider inside the strip groove. During use, the position of the center of the circle can be adjusted during rotation and grinding, and the lens is fixed on the top of the placement plate, and the position of the lens is adjusted by rotation, so that the grinding center point is located above the shaft of the rotating motor, and the adjustment of the device is completed, and then the grinding operation is performed in conjunction with the grinding mechanism. The grinding center adjustment of the device is more convenient, and the lens and the grinding mechanism rotate at the same time during the grinding process, which improves the grinding rate. In addition, the device has a simple structure and is easy to operate.

Description

A milling device for off-axis aspheric mirror

Technical Field

The utility model relates to a milling device, in particular to a milling device for off-axis aspheric mirrors, belonging to the technical field of optical glass processing.

Background Art

In the prior art, for example, a utility model with publication number 202120848831.X discloses an off-axis aspheric mirror grinding and polishing device. During the grinding process, the workpiece is fixed and placed, and an eccentric wheel assembly, a centering rod slide rail, a first adjustment assembly, and a second adjustment assembly are used to control the grinding head assembly to rotate and move in a circular motion at the same time to perform aspheric grinding. The device has a compact structure, a reasonable layout, low labor intensity, and high grinding and polishing efficiency. Under the premise of ensuring the surface accuracy of the aspheric mirror, the device has low cost and a simple process method.

Similar to the above application, there are still some shortcomings:

During the grinding process, it is inconvenient to adjust the centering of the grinding area of the aspheric mirror, which takes a long time to adjust, affecting the grinding rate. In addition, the device has many parts and a complex structure, which makes the use and control more cumbersome.

Therefore, a milling device for off-axis aspheric mirror is designed to optimize the above problems.

Utility Model Content

The main purpose of the utility model is to provide a milling device for off-axis aspheric mirrors. By arranging a strip groove at the bottom of a turntable and installing a rotating motor below a first slider inside the strip groove, the position of the center of a circle during rotational grinding can be adjusted during use, and the lens is fixed on the top of the placement plate, and the position of the lens is adjusted by rotation, and the grinding center point is located above the shaft of the rotating motor. After the adjustment of the device is completed, the grinding operation is performed in conjunction with the grinding mechanism. The grinding center adjustment of the device is more convenient. At the same time, during the grinding process, the lens and the grinding mechanism rotate at the same time, which improves the grinding rate. In addition, the device has a simple structure and is easy to operate. The grinding mechanism composed of a column, a first cylinder, a cross plate, a second cylinder, a grinding motor, and a grinding head can be quickly adjusted according to the thickness of the lens and the grinding position, and the practicality is higher.

The purpose of the utility model can be achieved by adopting the following technical solutions:

A milling device for an off-axis aspheric mirror comprises a base, a hollow disk is horizontally fixed on the top of the base, a turntable is fixed at the middle position of the top of the hollow disk, a strip groove is opened at the middle position of the bottom of the turntable along the radial direction, a first slider is slidably installed inside the strip groove, first bolts are threadedly installed on both sides of the first slider, a rotating motor is installed below the hollow disk, the output end of the rotating motor is connected to the bottom end of the first slider, a translation mechanism is provided at the bottom of the rotating motor, a mirror fixing mechanism is provided on the top of the turntable, and a grinding mechanism is provided on the outer side of the top of the hollow disk.

Preferably: the translation mechanism includes a slide groove, a second slider and a screw rod, the slide groove is opened at the top of the base, the second slider is slidably installed inside the slide groove, the top of the second slider is fixedly connected to the rotating motor, a screw rod is rotatably installed between the two ends of the slide groove, and the screw rod is threadedly connected to the second slider.

Preferably, an adjusting wheel is fixed to both ends of the screw rod, and an anti-slip pattern is provided on the outer side of the adjusting wheel.

Preferably: the mirror fixing mechanism includes a placing plate, a second bolt and a three-jaw chuck, the placing plate is rotatably installed on the top of the turntable, and the centers of the turntable and the placing plate are located on the same vertical line, the second bolts are evenly installed on the outside of the placing plate, and the three-jaw chuck is installed at the middle position of the top of the placing plate.

Preferably, an annular guide groove is provided on the outer side of the top of the rotating disk, a third slider is evenly slidably provided inside the annular guide groove, and the top of the third slider is fixedly connected to the placement disk.

Preferably, ball grooves are evenly formed on the outer side of the bottom of the turntable, balls are rotatably mounted inside the ball grooves, and the bottom of the balls fits the top of the hollow disk.

Preferably: the grinding mechanism includes a column, a first cylinder, a horizontal plate, a second cylinder, a grinding motor and a grinding head, the column is vertically fixed on the outside of the top of the hollow disk, the first cylinder is installed on the top of the column, the horizontal plate is horizontally installed on the output end of the first cylinder, the second cylinder is installed on the end of the horizontal plate, the grinding motor is installed on the output end of the second cylinder, the output end of the grinding motor is vertically facing the three-jaw chuck, and the output end of the grinding motor is installed with a grinding head.

The beneficial effects of the utility model are:

The utility model provides a milling device for off-axis aspheric mirrors. By arranging a strip groove at the bottom of a turntable and installing a rotating motor below a first slider in the strip groove, the position of the center of a circle during rotational grinding can be adjusted during use, and the lens is fixed on the top of the placement plate, and the position of the lens is rotated to adjust the grinding center point to be located above the shaft of the rotating motor. The device is adjusted, and then the grinding operation is performed in conjunction with the grinding mechanism. The grinding center adjustment of the device is more convenient. At the same time, during the grinding process, the lens and the grinding mechanism rotate at the same time, thereby increasing the grinding rate. In addition, the device has a simple structure and is easy to operate.

The grinding mechanism composed of a column, a first cylinder, a horizontal plate, a second cylinder, a grinding motor and a grinding head can be quickly adjusted according to the thickness of the lens and the grinding position, and is more practical.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a front cross-sectional view of the present invention;

Fig. 2 is a diagram of a grinding mechanism of the present utility model;

FIG3 is a bottom structural diagram of a turntable of the present invention;

FIG. 4 is an enlarged view of point A in FIG. 1 of the present utility model.

In the figure: 1. base; 2. hollow disk; 3. turntable; 4. strip groove; 5. first slider; 6. first bolt; 7. rotating motor; 8. slide groove; 9. second slider; 10. screw; 11. placement disk; 12. second bolt; 13. three-jaw chuck; 14. grinding mechanism; 15. annular guide groove; 16. third slider; 17. ball; 18. ball groove; 19. column; 20. first cylinder; 21. cross plate; 22. second cylinder; 23. grinding motor; 24. grinding head.

DETAILED DESCRIPTION

In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

As shown in Figures 1 to 4, this embodiment provides a milling device for an off-axis aspheric mirror, including a base 1, a hollow disk 2 is horizontally fixed on the top of the base 1, a turntable 3 is fixed at the middle position of the top of the hollow disk 2, a strip groove 4 is opened in the middle position of the bottom of the turntable 3 along the radial direction, a first slider 5 is slidably installed inside the strip groove 4, and first bolts 6 are threadedly installed on both sides of the first slider 5. A rotating motor 7 is installed below the hollow disk 2, and the output end of the rotating motor 7 is connected to the bottom end of the first slider 5. A translation mechanism is provided at the bottom of the rotating motor 7, a mirror fixing mechanism is provided at the top of the turntable 3, and a grinding mechanism 14 is provided on the outer side of the top of the hollow disk 2.

The general working principle is as follows: during use, the center of the circle in the area to be polished is first located directly above the strip groove 4, and then the optical glass is fixed in position using a mirror fixing mechanism, and then the translation mechanism is used to control the movement of the rotating motor 7, and the axis of the rotating motor 7 is aligned with the center of the circle of the polishing area. During the movement of the rotating motor 7, the first slider 5 is driven to move inside the strip groove 4. After the axis of the rotating motor 7 is aligned with the center of the circle of the polishing area, the position of the first slider 5 is fixed using the first bolt 6 to ensure the stable rotation of the rotating motor 7. During polishing, the rotating motor 7 is started to drive the optical glass to rotate at high speed, and then the polishing mechanism 14 is adjusted to contact the optical glass, and polishing is performed, and the polishing position is adjusted during the polishing process.

In this embodiment, the translation mechanism includes a slide groove 8, a second slider 9 and a screw 10. The slide groove 8 is opened at the top of the base 1. The second slider 9 is slidably installed inside the slide groove 8. The top of the second slider 9 is fixedly connected to the rotating motor 7. The screw 10 is rotatably installed between the two ends of the slide groove 8, and the screw 10 and the second slider 9 are threadedly connected.

Local working principle: when controlling the movement of the rotary motor 7, the screw 10 is rotated to control the second slider 9 to slide along the length direction inside the slide groove 8. Since the rotary motor 7 is fixed at the bottom of the second slider 9, the rotary motor 7 is moved.

In this embodiment, adjusting wheels are fixed to both ends of the screw rod 10, and anti-slip grooves are arranged on the outer sides of the adjusting wheels.

Partial working principle: When the screw rod 10 is rotated, the manual adjustment wheel is rotated, and the anti-skid pattern on the outer side of the adjustment wheel can increase the friction with the palm.

In this embodiment, the mirror fixing mechanism includes a placing plate 11, a second bolt 12 and a three-jaw chuck 13. The placing plate 11 is rotatably installed on the top of the turntable 3, and the center of the turntable 3 and the placing plate 11 are located on the same vertical line. The second bolts 12 are evenly installed on the outside of the placing plate 11, and the three-jaw chuck 13 is installed at the middle position of the top of the placing plate 11.

Local working principle: During the installation process, the optical glass is placed on the three-jaw chuck 13 for clamping and fixing. After the fixing is completed, the placement plate 11 is rotated again to drive the optical glass to rotate at the same time, and the center of the optical glass area to be polished is adjusted to be directly above the strip groove 4. After the adjustment is completed, the second bolt 12 is tightened to stabilize the position of the placement plate 11.

In this embodiment, an annular guide groove 15 is provided on the outer side of the top of the turntable 3 , a third slider 16 is evenly slidably provided inside the annular guide groove 15 , and the top of the third slider 16 is fixedly connected to the placement plate 11 .

Partial working principle: During the rotation of the placement plate 11 , the third slider 16 slides inside the annular guide groove 15 . Since the third slider 16 is located outside the bottom of the placement plate 11 , the stability of the rotation of the placement plate 11 can be ensured.

In this embodiment, ball grooves 18 are evenly opened on the outer side of the bottom of the turntable 3 , and balls 17 are rotatably installed inside the ball grooves 18 , and the bottom of the balls 17 fits with the top of the hollow disk 2 .

Partial working principle: During the rotation of the turntable 3, the balls 17 will not wear against the hollow disk 2, and the rotation of the turntable 3 is more stable.

In this embodiment, the grinding mechanism 14 includes a column 19, a first cylinder 20, a cross plate 21, a second cylinder 22, a grinding motor 23 and a grinding head 24. The column 19 is vertically fixed on the outer side of the top of the hollow disk 2. The first cylinder 20 is installed on the top of the column 19. The cross plate 21 is horizontally installed on the output end of the first cylinder 20. The second cylinder 22 is installed on the end of the cross plate 21. The output end of the second cylinder 22 is installed with a grinding motor 23. The output end of the grinding motor 23 is vertically facing the three-jaw chuck 13, and the output end of the grinding motor 23 is installed with a grinding head 24.

Local working principle: During the polishing process, the first cylinder 20 is started to control the lifting and lowering of the polishing motor 23, and the second cylinder 22 is started to horizontally control the translation of the polishing motor 23 to change the polishing position. During the polishing process, the polishing motor 23 drives the polishing head 24 to rotate to polish the optical glass surface.

The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims (7)

1. A milling and grinding device for an off-axis aspherical mirror, which is characterized in that: including base (1), the top level of base (1) is fixed with cavity dish (2), the intermediate position department at cavity dish (2) top is fixed with carousel (3), bar groove (4) have been seted up along the radial direction to the intermediate position department at carousel (3) bottom, the inside slidable mounting in bar groove (4) has first slider (5), first bolt (6) are all installed to the both sides of first slider (5) screw thread, rotating electrical machines (7) are installed to the below of cavity dish (2), the output of rotating electrical machines (7) is connected with the bottom of first slider (5), the bottom of rotating electrical machines (7) is equipped with translation mechanism, the top of carousel (3) is equipped with mirror surface fixed establishment, the outside at cavity dish (2) top is equipped with grinding machanism (14).

2. A milling device for off-axis aspherical mirrors according to claim 1, wherein: the translation mechanism comprises a sliding groove (8), a second sliding block (9) and a screw rod (10), wherein the sliding groove (8) is formed in the top of the base (1), the second sliding block (9) is slidably arranged in the sliding groove (8), the top of the second sliding block (9) is fixedly connected with a rotating motor (7), the screw rod (10) is rotatably arranged between the two ends of the sliding groove (8), and the screw rod (10) is in threaded connection with the second sliding block (9).

3. A milling device for off-axis aspherical mirrors according to claim 2, wherein: both ends of the screw rod (10) are fixed with adjusting wheels, and the outer sides of the adjusting wheels are provided with anti-skid patterns.

4. A milling apparatus for off-axis aspherical mirrors according to claim 3, wherein: the mirror surface fixed establishment is including placing dish (11), second bolt (12) and three jaw chuck (13), places the top at carousel (3) of dish (11) rotation installation, and carousel (3) are located same vertical line with the centre of a circle of placing dish (11), and second bolt (12) are evenly installed in the outside of placing dish (11), and three jaw chuck (13) are installed to intermediate position department at placing dish (11) top.

5. A milling apparatus for off-axis aspherical mirrors according to claim 4, wherein: an annular guide groove (15) is formed in the outer side of the top of the rotary table (3), a third sliding block (16) is uniformly arranged in the annular guide groove (15) in a sliding mode, and the top of the third sliding block (16) is fixedly connected with the placing plate (11).

6. A milling device for off-axis aspherical mirrors according to claim 1, wherein: the outside of carousel (3) bottom evenly has seted up ball groove (18), and ball (17) are all installed in the inside rotation of ball groove (18), and the bottom of ball (17) is laminated with the top of cavity dish (2).

7. A milling device for off-axis aspherical mirrors according to any of claims 1-6 wherein: the polishing mechanism (14) comprises a stand column (19), a first air cylinder (20), a transverse plate (21), a second air cylinder (22), a polishing motor (23) and a polishing head (24), wherein the stand column (19) is vertically fixed on the outer side of the top of the hollow disc (2), the first air cylinder (20) is installed at the top of the stand column (19), the transverse plate (21) is horizontally installed at the output end of the first air cylinder (20), the second air cylinder (22) is installed at the end part of the transverse plate (21), the polishing motor (23) is installed at the output end of the second air cylinder (22), the output end of the polishing motor (23) faces the three-jaw chuck (13) vertically, and the polishing head (24) is installed at the output end of the polishing motor (23).