CN217914516U

CN217914516U - Ultra-precise nanometer machine tool

Info

Publication number: CN217914516U
Application number: CN202221550419.0U
Authority: CN
Inventors: 张建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-11-29
Anticipated expiration: 2032-06-20

Abstract

The utility model discloses an ultra-precision nanometer lathe, including base, X axle actuating mechanism, first rotating device, tool bit, Y axle actuating mechanism, second rotating device and mounting fixture, X axle actuating mechanism is installed at the base top. The beneficial effects of the utility model include: the utility model provides an ultra-precise nanometer lathe, lens that can drive on the mounting fixture through the second rotating device rotates and polishes the lens, can drive first rotating device through X axle actuating mechanism and move in X axle direction simultaneously, thereby can drive the tool bit and remove in X axle direction, can drive the second rotating device through Y axle actuating mechanism and move in Y axle direction, thereby can drive the lens on the mounting fixture and move in Y axle direction, can drive the tool bit through first rotating device and rotate, the cutting edge that makes the tool bit all the time with the different regional perpendicular contacts of lens, polishing effect is good, the uniformity between the lens is good simultaneously.

Description

Ultra-precise nanometer machine tool

Technical Field

The utility model belongs to the technical field of the polishing machine tool technique and specifically relates to an ultra-precise nanometer lathe is related to.

Background

At present, many high-precision instruments and equipment have optical systems. The optical system is a system formed by combining a plurality of optical elements such as a lens, a reflector, a prism and a diaphragm in a certain order, for example, a plurality of lenses in a camera form a set of optical system. In one set of optical system, each lens has a certain influence on the final optical path, so that in order to ensure that the final optical system can achieve the designed effect, the optical surface of each lens must be ensured to meet the design requirement, which puts a severe requirement on the processing precision of the lens.

The conventional lens polishing machine generally includes a housing, a clamping device and a cutting and polishing device, wherein the clamping device is located in the housing, the clamping device is used for fixing a lens, and the cutting and polishing device is used for cutting and polishing the lens. After the clamping device of the lens polishing machine clamps the lens, the position and the angle of the lens cannot be changed, and the lens only rotates along the axial direction of the clamping device; similarly, after the cutting parameters are set, the position of the cutting and polishing device relative to the lens is also fixed, and the cutting of the lens is realized through the edge rotation of the cutter head.

In use, the conventional polishing machine usually requires a person to continuously adjust the holding position of the lens and/or the position of the grinding and polishing device relative to the lens to cut different curvatures of different regions of the lens. Polishing in this manner not only requires labor, but also results in unsatisfactory lens polishing effect and poor lens uniformity.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide an ultra-precision nanometer lathe, solve the burnishing machine among the prior art when using, the clamping position that needs personnel to constantly adjust the lens usually and/or the polishing device realizes carrying out the polishing of different curvatures to the different regions of lens for the position of lens, the mode polishes from this, not only need expend the manpower, still causes lens polishing effect and unsatisfactory, and the relatively poor technical problem of uniformity between the lens.

In order to achieve the technical purpose, the technical scheme of the utility model provides an ultra-precision nanometer lathe, the on-line screen storage device comprises a base, X axle actuating mechanism, first rotary device, the tool bit, Y axle actuating mechanism, second rotary device and mounting fixture, X axle actuating mechanism is installed at the base top, first rotary device is installed at X axle actuating mechanism top, install the tool bit in first rotary device's the axis of rotation, Y axle actuating mechanism is still installed at the base top, second rotary device is installed at Y axle actuating mechanism top, the center pin of second rotary device's axis of rotation is perpendicular with the cutting edge of tool bit, the mounting fixture who is used for fixed lens is installed in second rotary device's the axis of rotation.

Further, X axle actuating mechanism includes X axle guide rail, X axle slider and X axle linear electric motor, and the X axle guide rail is installed at the base top, and the X axle slider slides and establishes on the X axle guide rail, and X axle linear electric motor is connected with X axle slider, and first rotary device installs at X axle slider top.

Furthermore, the Y-axis driving mechanism comprises a Y-axis guide rail, a Y-axis sliding block and a Y-axis linear motor, the Y-axis guide rail is installed at the top of the base, the Y-axis guide rail is perpendicular to the X-axis guide rail, the Y-axis sliding block is arranged on the Y-axis guide rail in a sliding mode, the Y-axis linear motor is connected with the Y-axis sliding block, and the second rotating device is installed at the top of the Y-axis sliding block.

Furthermore, the X-axis slide block and the Y-axis slide block are both air-floating slide blocks.

Further, both the X-axis linear motor and the Y-axis linear motor are servo linear motors.

Further, first rotary device is including rotating motor and carousel, rotates the motor and installs at X axle slider top, rotates and installs the carousel in the axis of rotation of motor, and the tool bit is installed at the carousel top, rotates the motor outside and installs the dustcoat, and the dustcoat top is equipped with the through-hole, and the dustcoat top just is located the through-hole edge and is equipped with the spacing collar, carousel lateral wall and spacing collar inside wall sliding connection.

Further, the rotating motor is a servo motor.

Furthermore, the dust cover is installed at the top of the outer cover and located at the periphery of the limiting ring, and a dust suction hole is formed in the edge of the bottom of the dust cover.

Furthermore, a first mounting rod is installed on the outer side wall of the outer cover, a camera is installed at the upper end of the first mounting rod, one end, close to an objective lens of the camera, of the camera stretches into the dust cover from the top of the dust cover, a second mounting rod is further installed on the outer wall of the outer cover, a vortex tube is installed at the upper end of the second mounting rod, and one end, close to an air outlet of the vortex tube, of the vortex tube stretches into the dust cover from the side wall of the dust cover.

Further, the second rotating device is an air-float motorized spindle.

The beneficial effects of the utility model include: the utility model provides an ultra-precise nanometer lathe, lens that can drive on the mounting fixture through the second rotating device rotates and polishes the lens, can drive first rotating device through X axle actuating mechanism and move in X axle direction simultaneously, thereby can drive the tool bit and remove in X axle direction, can drive the second rotating device through Y axle actuating mechanism and move in Y axle direction, thereby can drive the lens on the mounting fixture and move in Y axle direction, can drive the tool bit through first rotating device and rotate, the cutting edge that makes the tool bit all the time with the different regional perpendicular contacts of lens, polishing effect is good, the uniformity between the lens is good simultaneously.

The utility model provides an ultra-precision nanometer lathe, X axle slider and Y axle slider are the air supporting slider, can make between X axle slider and the X axle guide rail and between Y axle slider and the Y axle guide rail contactless, have improved the velocity of motion of X axle slider and Y axle slider, and gas can be to exerting the pretightning force between X axle guide rail and the X axle slider and between Y axle guide rail and the Y axle slider simultaneously, improves the rigidity of motion to can improve the regulation precision.

The utility model provides an ultra-precision nanometer lathe, second rotating device are air supporting electricity main shaft, and the axle core of air supporting electricity main shaft relies on air supporting bearing to support, and the axle core does not take place the friction with peripheral equipment when rotating to improved the slew velocity of axle core effectively, the consume of the energy that reduces greatly, the axle core vibrates for a short time at the rotation in-process simultaneously, has guaranteed the low dynamic beat and the stability of axle core well, thereby has improved the machining precision better.

Drawings

Fig. 1 is a schematic structural diagram of an ultra-precision nano-machine tool according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an ultra-precise nano-machine tool according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram three of an ultra-precise nano-machine tool according to an embodiment of the present invention;

FIG. 4 is an enlarged view at A of FIG. 3;

in the figure: 1. a base; 2. an X-axis drive mechanism; 21. an X-axis guide rail; 22. an X-axis slider; 23. an X-axis linear motor; 3. a first rotating device; 31. rotating the motor; 32. a turntable; 33. outer cover, 34, spacing collar; 35. a dust cover; 351. a dust collection hole; 36. a first mounting bar; 37. a camera; 38. a second mounting bar; 39. a vortex tube; 4. a cutter head; 5. a Y-axis drive mechanism; 51. a guide rail; 52. a Y-axis slider; 53. a Y-axis linear motor; 6. a second rotating device; 7. and (5) fixing the clamp.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-4, the utility model provides an ultra-precision nanometer lathe, including base 1, X axle actuating mechanism 2, first rotating device 3, tool bit 4, Y axle actuating mechanism 5, second rotating device 6 and mounting fixture 7, X axle actuating mechanism 2 is installed at base 1 top, first rotating device 3 is installed at X axle actuating mechanism 2 top, install tool bit 4 in the axis of rotation of first rotating device 3, Y axle actuating mechanism 5 is still installed at base 1 top, second rotating device 6 is installed at Y axle actuating mechanism 5 top, the center pin of the axis of rotation of second rotating device 6 is perpendicular with the cutting edge of tool bit 4, mounting fixture 7 that is used for fixed lens is installed in the axis of rotation of second rotating device. During the use, the lens can be fixed on mounting fixture 7, can drive the lens on mounting fixture 7 through second rotating device 6 and rotate and carry out the cutting polishing to the lens, can drive first rotating device 3 through X axle actuating mechanism 2 simultaneously and move in the X axle direction, thereby can drive tool bit 4 and move in the X axle direction, can drive second rotating device 6 through Y axle actuating mechanism 5 and move in the Y axle direction, thereby can drive the lens on mounting fixture 7 and move in the Y axle direction, can drive tool bit 5 through first rotating device 3 and rotate, make the cutting edge of tool bit 5 contact with the different regions of lens perpendicularly all the time, polishing effect is good, the uniformity between the lens is good simultaneously.

More specifically, the X-axis driving mechanism 2 comprises an X-axis guide rail 21, an X-axis slider 22 and an X-axis linear motor 23, the X-axis guide rail 21 is installed at the top of the base 1, the X-axis slider 22 is arranged on the X-axis guide rail 21 in a sliding mode, the X-axis linear motor 23 is connected with the X-axis slider 22, the first rotating device 3 is installed at the top of the X-axis slider 22, the X-axis slider 22 can be driven to slide on the X-axis guide rail 21 through the X-axis linear motor 23, and the X-axis slider 22 drives the first rotating device 3 to move in the X-axis direction, so that the cutter head 5 can be driven to move in the X-axis direction.

More specifically, the Y-axis driving mechanism 5 includes a Y-axis guide rail 51, a Y-axis slider 52 and a Y-axis linear motor 53, the Y-axis guide rail 51 is installed on the top of the base 1, the Y-axis guide rail 51 is perpendicular to the X-axis guide rail 21, the Y-axis slider 52 is slidably disposed on the Y-axis guide rail 51, the Y-axis linear motor 53 is connected to the Y-axis slider 52, the second rotating device 6 is installed on the top of the Y-axis slider 52, and the Y-axis linear motor 51 can drive the Y-axis slider 52 to slide on the Y-axis guide rail 51, so as to drive the lens on the fixing clamp 7 to move in the Y-axis direction.

It should be noted that the base 1, the X-axis guide rail 21, the X-axis slider 22, the Y-axis guide rail 51, and the Y-axis slider 52 are made of high-grade granite materials, and the stability of the precision of the machine tool is ensured by using the characteristics of the granite materials that the granite materials are aged for billions of years, have uniform texture, precise structure, good thermal stability, high strength, high hardness, and can maintain high precision under heavy load.

It should be noted that both the X-axis slider 22 and the Y-axis slider 52 are air-floating sliders, so that there is no contact between the X-axis slider 22 and the X-axis guide rail 21 and between the Y-axis slider 52 and the Y-axis guide rail 51, the moving speed of the X-axis slider 22 and the Y-axis slider 52 is increased, and meanwhile, the gas can apply a pretightening force between the X-axis guide rail 21 and the X-axis slider 22 and between the Y-axis guide rail 51 and the Y-axis slider 52, so as to increase the moving rigidity, thereby increasing the adjustment accuracy.

It should be noted that the X-axis linear motor 23 and the Y-axis linear motor 53 are both servo linear motors, and the servo linear motors avoid a transmission chain through a driving mode of direct power connection, so as to prevent the X-axis slider 51 and the Y-axis slider 52 from vibrating during the movement process, thereby improving the adjustment precision.

More specifically, the first rotating device 3 comprises a rotating motor 31 and a rotating disc 32, the rotating motor 31 is installed on the top of the X-axis sliding block 22, the rotating disc 32 is installed on the rotating shaft of the rotating motor 31, the cutter head 4 is installed on the top of the rotating disc 32, and the rotating disc 32 can be driven to rotate by the rotating motor 31, so that the cutter head 4 can be driven to rotate.

In order to make the carousel 32 rotate more steadily, rotate the motor 31 outside and install dustcoat 33, dustcoat 33 top is equipped with the through-hole, dustcoat 33 top just is located the through-hole edge and is equipped with spacing collar 34, carousel 32 lateral wall and spacing collar 34 inside wall sliding connection, through with carousel 32 lateral wall and spacing collar 34 inside wall sliding connection, can be carousel 32 at the pivoted in-process more steadily, also can avoid carousel 32 skew when the lens carries out cutting polishing at the tool bit 5 of carousel 32 simultaneously, thereby can improve the machining precision to the lens.

In order to avoid the splash of the fragments when the lens is polished, the dust cover 35 is installed on the top of the outer cover 33 and located around the limiting ring 34, and the splash of the fragments when the lens is polished is avoided through the dust cover 35.

In order to achieve the purpose of protecting the environment and not damaging the processed surface, the bottom edge of the dust cover 35 is provided with a dust suction hole 351, the dust suction hole 351 is connected with a vacuum dust suction system, under the action of the vacuum dust suction system, the scraps generated in the polishing process can be discharged from the dust cover 35 through the dust suction hole 351, the scraps in the dust cover 35 can be effectively cleaned, the scraps are prevented from being adhered to the surface of the lens, and the purpose of protecting the environment and not damaging the processed surface of the lens is achieved.

In order to facilitate observation of the position of the tool bit 5 in the tool setting process, the first mounting rod 36 is mounted on the outer wall of the outer cover 33, the camera 37 is mounted at the upper end of the first mounting rod 36, the camera 37 is close to an objective lens and extends into the dust cover 35 from the top of the dust cover 35, and the position of the tool bit 5 can be observed through the camera 11, so that observation of the position of the tool bit 5 in the tool setting process can be facilitated.

When needing to be explained, the upper end of the first mounting rod 1 is bent towards the direction of the rotary table 4 and is provided with a fixing hole, the angle between the bending direction and the vertical direction is 120-150 degrees, the camera 11 is internally mounted in the fixing hole, and the design is reasonable.

In order to protect the machined surface of the lens, a second mounting rod 38 is further mounted on the outer wall of the outer cover 33, a vortex tube 39 is mounted at the upper end of the second mounting rod 38, one end, close to an air outlet, of the vortex tube 39 extends into the dust cover 35 from the side wall of the dust cover 35, an air inlet of the vortex tube 39 is connected with a cold air cooling system, cold air generated by the cold air cooling system can be discharged through the vortex tube 39, fragments on the surface of the lens are removed, the purpose of protecting the machined surface of the lens is achieved, meanwhile, cold air can cool the tool bit 5, the tool bit 4 is prevented from deforming due to overheating in the cutting and polishing process, and therefore the machining precision of the tool bit 4 can be prevented from being influenced.

It should be noted that the outer side wall of the second mounting rod 38 is symmetrically provided with two first mounting blocks, two opposite sides of the two first mounting plates are respectively provided with a first semicircular groove, the two first semicircular grooves form a first circular hole, the vortex tube 39 is arranged in the first circular hole, and one ends of the two first mounting plates, which are far away from the second mounting rod 38, are connected through a first fixing bolt, so as to fix the vortex tube 39 in the first circular hole.

It should be noted that the rotating motor 31 is a servo motor, the servo motor can control the speed, the position accuracy is very accurate, and the voltage signal can be converted into the torque and the rotating speed to drive the controlled object. The rotation speed of the rotor of the servo motor is controlled by an input signal and can quickly respond, the servo motor is used as an execution element in an automatic control system and has the characteristics of small electromechanical time constant, high linearity and the like, the received electric signal can be converted into angular displacement or angular speed on a motor shaft to be output, the position of the cutter head 5 can be accurately adjusted, and the cutter setting precision is high.

In this embodiment, the second rotating device 6 is an air-floating motorized spindle, the rotating shaft of the air-floating motorized spindle is supported by an air-floating bearing, and the rotating shaft does not rub against peripheral devices during rotation, so that the rotating speed of the rotating shaft is effectively increased, the loss of energy is greatly reduced, and meanwhile, the rotating shaft vibrates little during the rotation process, so that the low dynamic deflection and stability of the rotating shaft are well ensured, and the processing precision is better improved.

It should be noted that two second mounting blocks are symmetrically arranged at the top of the Y-axis sliding block 52, second semicircular grooves are formed in opposite sides of the two second mounting plates, the two second semicircular grooves form a second circular hole, the air-floatation motorized spindle is arranged in the second circular hole, and one ends of the two second mounting plates, which are far away from the Y-axis sliding block 52, are connected through second fixing bolts so as to fix the air-floatation motorized spindle in the second circular hole.

The specific principle is as follows: when the polishing machine is used, a lens can be fixed on a fixing clamp 7, the lens on the fixing clamp 7 can be driven to rotate by the second rotating device 6 to cut and polish the lens, the X-axis linear motor 23 can drive the X-axis sliding block 22 to slide on the X-axis guide rail 21, the X-axis sliding block 22 drives the rotating motor 31 to move in the X-axis direction, the rotating motor 31 drives the cutter head 5 to move in the X-axis direction, the Y-axis linear motor 51 can drive the Y-axis sliding block 52 to slide on the Y-axis guide rail 51, and the Y-axis sliding block 52 drives the second rotating device 6 to move in the Y-axis direction, so that the lens on the fixing structure 7 can be driven to move in the Y-axis direction, the cutter head 5 can be driven to rotate by the rotating motor 31, the cutting edge of the cutter head 5 is always in vertical contact with different areas of the lens, the polishing effect is good, and the consistency between the lenses is good; the position of the tool bit 5 can be observed through the camera 11, so that the position of the tool bit 5 can be conveniently observed in the tool setting process; under vacuum cleaning system's effect, the piece accessible dust absorption hole 351 that produces in the polishing process is discharged in the dust cover 35, can clear up the piece in the dust cover 35 effectively, avoids the piece adhesion on the lens surface, reaches the environmental protection and does not harm the purpose that the lens has processed the surface.

The beneficial effects of the utility model include: the utility model provides an ultra-precise nanometer lathe, can drive the lens rotation on the mounting fixture 7 through second rotating device 6 and polish the lens, can drive first rotating device 3 through X axle actuating mechanism 2 simultaneously and remove in X axle direction, thereby can drive tool bit 4 and remove in X axle direction, can drive second rotating device 6 through Y axle actuating mechanism 5 and remove in Y axle direction, thereby can drive the lens on the mounting fixture 7 and remove in Y axle direction, can drive tool bit 5 through first rotating device 3 and rotate, make the cutting edge of tool bit 5 all the time with the different regional perpendicular contacts of lens, polishing effect is good, the uniformity between the lens is good simultaneously.

The above description is intended to illustrate the embodiments of the present invention, and not to limit the scope of the invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides an ultra-precise nanometer lathe, its characterized in that includes base, X axle actuating mechanism, first rotary device, tool bit, Y axle actuating mechanism, second rotary device and mounting fixture, X axle actuating mechanism is installed at the base top, first rotary device is installed at X axle actuating mechanism top, install the tool bit in first rotary device's the axis of rotation, Y axle actuating mechanism is still installed at the base top, the second rotary device is installed at Y axle actuating mechanism top, the center pin of second rotary device's axis of rotation is perpendicular with the cutting edge of tool bit, install the mounting fixture that is used for fixed lens in second rotary device's the axis of rotation.

2. The ultra-precise nanometer machine tool according to claim 1, wherein the X-axis driving mechanism comprises an X-axis guide rail, an X-axis slider and an X-axis linear motor, the X-axis guide rail is mounted on the top of the base, the X-axis slider is slidably disposed on the X-axis guide rail, the X-axis linear motor is connected with the X-axis slider, and the first rotating device is mounted on the top of the X-axis slider.

3. The ultra-precise nanometer machine tool according to claim 2, wherein the Y-axis driving mechanism comprises a Y-axis guide rail, a Y-axis slider and a Y-axis linear motor, the Y-axis guide rail is mounted on the top of the base, the Y-axis guide rail is perpendicular to the X-axis guide rail, the Y-axis slider is slidably mounted on the Y-axis guide rail, the Y-axis linear motor is connected with the Y-axis slider, and the second rotating device is mounted on the top of the Y-axis slider.

4. The ultra-precision nano machine tool according to claim 3, wherein the X-axis slider and the Y-axis slider are both air-bearing sliders.

5. The ultra-precise nanomachine of claim 3, wherein the X-axis linear motor and the Y-axis linear motor are both servo linear motors.

6. The ultra-precise nano machine tool according to claim 1, wherein the first rotating device comprises a rotating motor and a turntable, the rotating motor is installed at the top of the X-axis sliding block, the turntable is installed on a rotating shaft of the rotating motor, the cutter head is installed at the top of the turntable, an outer cover is installed on the outer side of the rotating motor, a through hole is formed in the top of the outer cover, a limiting ring is arranged at the top of the outer cover and positioned at the edge of the through hole, and the outer side wall of the turntable is connected with the inner side wall of the limiting ring in a sliding mode.

7. The ultra-precise nanomachine of claim 6, wherein the rotating motor is a servo motor.

8. The ultra-precise nanometer machine tool according to claim 6, wherein a dust cover is installed on the top of the outer cover and around the limiting ring, and a dust suction hole is formed in the bottom edge of the dust cover.

9. The ultra-precise nanometer machine tool according to claim 6, wherein the outer side wall of the outer cover is provided with a first mounting rod, the upper end of the first mounting rod is provided with a camera, one end of the camera, which is close to the objective lens, extends into the dust cover from the top of the dust cover, the outer wall of the outer cover is further provided with a second mounting rod, the upper end of the second mounting rod is provided with a vortex tube, and one end of the vortex tube, which is close to the air outlet of the vortex tube, extends into the dust cover from the side wall of the dust cover.

10. The ultra-precise nano machine tool according to claim 1, wherein the second rotating device is an air-floating motorized spindle.