Optical polishing machine

Abstract

The utility model discloses an optical polishing machine which at least comprises but not limited to a polishing disc assembly, a swing assembly, a spraying assembly and a shell. The polishing disc assembly and the power end of the swing assembly are arranged in the shell, a reverse rotation motor is arranged on the swing assembly, the output end of the reverse rotation motor directly faces a polishing disc part of the polishing disc assembly, and the output end of the reverse rotation motor is detachably connected with a clamping part. The clamping part is used for clamping the optical element to be ground; the output end of the spraying assembly is arranged close to the polishing disc part, and the inlet end of the spraying assembly is connected with a bearing disc at the bottom of the polishing disc part. According to the scheme, the polishing efficiency of the large-caliber plane optical element can be improved, the measurement difficulty in the machining process is simplified, and the smoothness of the optical element is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical processing, and particularly relates to an optical polishing machine. Background Art

[0002] At present, for the polishing of large-aperture planar optical elements with a diameter of more than 500 mm, due to equipment limitations and cost considerations, traditional optical processing devices are basically used. The traditional processing device is generally a swing-type polishing machine. This device generally drives the optical element to rotate by itself through the rotation of the polishing mold, and then makes the reciprocating friction movement between the polishing mold and the optical element in a swinging manner with an arc trajectory, so as to remove the excess size of the optical element, reduce surface defects, and improve surface roughness and surface shape.

[0003] However, the traditional swing-type polishing machine generally has the following problems:

[0004] 1. Since the polishing mold for large-aperture optical elements is relatively large, the machining accuracy cannot be guaranteed. Generally, when the rotation speed is relatively high, there will be a situation of non-concentricity and up-and-down shaking at the edge. Therefore, at present, whether it is fine grinding or polishing, in order to ensure the machining accuracy and safety of the optical element, a low-speed polishing process is generally adopted, and this method has extremely low efficiency.

[0005] 2. The numerical value of the optical element size cannot be simply, quickly, accurately and safely measured. For optical elements with relatively high requirements for indexes such as central thickness and eccentricity, they need to be measured repeatedly many times during the processing. Since large-aperture optical elements are relatively heavy, it is extremely easy to cause danger during the measurement process and damage the optical element.

[0006] 3. For the polishing of large-aperture planar optical elements, the swing-type polishing machine generally adopts a processing structure of a fixture plus iron needles. During the processing, the iron powder generated by the iron needles and the wear-resistant blocks is easy to fall onto the polishing mold, causing destructive damage to the optical element. Summary of the Utility Model

[0007] The purpose of the utility model is to provide an optical polishing machine for the above-mentioned deficiencies, which solves the problems of low machining accuracy, low polishing efficiency and low surface finish of the optical element existing in the traditional swing-type polishing machine.

[0008] The utility model is realized by the following scheme:

[0009] An optical polishing machine includes at least, but is not limited to, a polishing disc assembly, a swing assembly, a spraying assembly, and a housing. The power ends of the polishing disc assembly and the swing assembly are arranged inside the housing. A reverse motor is arranged on the swing assembly, and the output end of the reverse motor faces the polishing disc part of the polishing disc assembly. A clamping part is detachably connected to the output end of the reverse motor. The clamping part clamps the optical element to be polished. The output end of the spraying assembly is arranged close to the polishing disc part, and the inlet end of the spraying assembly is connected to the receiving disc at the bottom of the polishing disc part.

[0010] Based on the structure of the above optical polishing machine, the polishing disc assembly includes a main motor, a polishing disc, and a receiving disc. The receiving disc is embedded in the upper surface of the housing. The output end of the main motor penetrates through the receiving disc and is connected to the polishing disc. The size of the receiving disc is not less than that of the polishing disc.

[0011] Based on the structure of the above optical polishing machine, the swing assembly includes a swing motor, a swing runner, a swing frame, and a hinge seat. The swing motor is arranged in the housing. The output end of the swing motor penetrates through the top position of the housing and is connected to the swing runner. The hinge seat is fixed on the top of the housing. The swing frame includes a first swing arm and a second swing arm. The first swing arm is connected to the swing runner, and the second swing arm is spherically hinged to the hinge seat.

[0012] Based on the structure of the above optical polishing machine, a sliding groove is arranged on the swing runner. The end of the first swing arm is provided with a connecting vertical rod. The top of the connecting vertical rod is hinged to the first swing arm. The bottom of the connecting vertical rod is movably arranged in the sliding groove through two nuts, so that the end of the connecting vertical rod can move along the length direction of the sliding groove.

[0013] Based on the structure of the above optical polishing machine, support sleeves are sleeved on the first swing arm and the second swing arm. A triangular support frame is arranged on the support sleeve. The reverse motor is fixed to the upper end of the triangular support frame through an auxiliary support rod. The output end of the reverse motor faces the end of the triangular support frame, and a connecting sleeve is arranged on the output end of the reverse motor.

[0014] Based on the structure of the above optical polishing machine, the clamping part includes a connecting rod and a clamping assembly. A damping groove is arranged on the clamping assembly. A damping head is arranged at the end of the connecting rod. The shape of the damping head is adapted to the damping groove. One end of the connecting rod is arranged in the connecting sleeve.

[0015] Based on the structure of the above-mentioned optical polishing machine, the clamping assembly includes a clamping block, a clamping arm and a locking member; a threaded post is provided at the center of the clamping block, and auxiliary holes are provided at the circumferential position of the clamping block, the central angle of the auxiliary holes is 120°, a clamping ring adapted to the size of the threaded post is provided at the end of the clamping arm, and a locking hole matching the auxiliary hole is provided on the side wall of the clamping arm; the clamping ring is snapped onto the threaded post, and the locking hole and the auxiliary hole are fixed by a screw.

[0016] Based on the structure of the above-mentioned optical polishing machine, the damping groove is provided at the top position of the locking member, and a threaded sleeve is provided at the bottom of the locking member.

[0017] Based on the structure of the above-mentioned optical polishing machine, a dimension gauge is provided on the triangular support frame.

[0018] Based on the structure of the above-mentioned optical polishing machine, the spraying assembly includes a spraying pipe, a liquid return pipe, a liquid storage tank, a water pump and a filter; the spraying pipe is provided on the polishing disc, the liquid return pipe is connected to the bottom position of the receiving disc, the spraying pipe sprays polishing liquid outwards through the water pump, the spraying pipe, the liquid return pipe and the water pump are all connected to the liquid storage tank, and the filter is provided on the spraying pipe.

[0019] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0020] 1. In this solution, the polishing disc assembly is used to polish the optical element, and the swinging assembly is used to drive the driving motor and the clamping part to move, so that the optical element to be polished clamped by the clamping part generates relative movement with the polishing disc part, realizing fine polishing of the optical element. By reversing the motor, the clamping part can be controlled to reverse relative to the polishing disc part, increasing the efficiency of relative friction and greatly improving the polishing efficiency; by setting the spraying assembly, the polishing liquid can be continuously sprayed on the grinding surface to avoid errors caused by manual liquid addition; and the polishing liquid is continuously filtered during the reflux process of the polishing liquid, reducing the impurities in the polishing liquid and avoiding damage to the optical element during the processing.

[0021] 2. Through this solution, the polishing efficiency of large-aperture planar optical elements can be improved, the measurement difficulty during processing can be simplified, and the surface finish of the optical elements can be improved. Description of the Drawings

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the whole of the present utility model;

[0023] Figure 2 It is a cross-sectional structural schematic diagram of the whole of the present utility model;

[0024] Figure 3 It is a structural schematic diagram of the clamping part in the present utility model;

[0025] Description of the Drawings: 1. Polishing disc assembly; 2. Oscillating assembly; 3. Spraying assembly; 4. Housing; 5. Reverse motor; 6. Clamping part; 7. Dimension table; 8. Optical element; 11. Main motor; 12. Polishing disc; 13. Receiving tray; 21. Oscillating motor; 22. Oscillating runner; 23. Oscillating frame; 24. Hinge seat; 25. First oscillating arm; 26. Second oscillating arm; 27. Sliding groove; 28. Connecting vertical rod; 29. Nut; 210. Support sleeve; 211. Triangular support frame; 212. Connecting sleeve; 213. Connecting rod; 214. Damping groove; 215. Damping head; 216. Clamping block; 217. Clamping arm; 218. Locking part; 219. Threaded column; 220. Auxiliary hole; 221. Snap ring; 222. Locking hole; 31. Spraying pipe; 32. Return pipe; 33. Liquid storage tank; 34. Water pump; 35. Filter; 36. Auxiliary support rod; 37. Screw rod. Detailed Description of the Embodiment

[0026] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0027] Any feature disclosed in this specification (including any additional claims, abstract) can be replaced by other equivalent or similar-purpose alternative features unless specifically stated. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0030] Embodiment 1

[0031] As Figures 1 to 3 shown, the present invention provides a technical solution:

[0032] An optical polishing machine, which at least includes but is not limited to a polishing disc 12 assembly, a swing assembly 2, a spraying assembly 3 and a housing 4; the power ends of the polishing disc 12 assembly and the swing assembly 2 are arranged inside the housing 4, a reverse motor 5 is arranged on the swing assembly 2, the output end of the reverse motor 5 is arranged facing the polishing disc 12 of the polishing disc 12 assembly, and a clamping part 6 is detachably connected to the output end of the reverse motor 5; the clamping part 6 clamps the optical element 8 to be polished; the output end of the spraying assembly 3 is arranged close to the polishing disc 12, and the inlet end of the spraying assembly 3 is connected to a receiving disc 13 at the bottom of the polishing disc 12.

[0033] 3. Based on the above structure, the polishing disc 12 assembly is used to polish the optical element 8, the swing assembly 2 is used to drive the driving motor and the clamping part 6 to move, so that the optical element 8 to be polished clamped by the clamping part 6 generates relative movement with the polishing disc 12, realizing the polishing of the optical element 8. By the reverse motor 5, the clamping part 6 can be controlled to reverse relative to the polishing disc 12, increasing the efficiency of relative friction and greatly improving the polishing efficiency; by setting the spraying assembly, the polishing liquid can be continuously sprayed on the grinding surface to avoid errors caused by manual liquid addition; and during the reflux process of the polishing liquid, the polishing liquid is continuously filtered to reduce the impurities in the polishing liquid and avoid damaging the optical element during the processing.

[0034] As an example, the polishing disc 12 assembly may include a main motor 11, a polishing disc 12 and a receiving disc 13; the receiving disc 13 is embedded in the upper surface of the housing 4, the output end of the main motor 11 penetrates through the receiving disc 13 and is connected to the polishing disc 12, and the size of the receiving disc 13 is not less than that of the polishing disc 12.

[0035] Based on the above structure, the main motor 11 operates to drive the polishing disc 12 to rotate, thereby realizing the polishing of the optical element 8 thereon. The receiving disc 13 is used to receive the polishing liquid sprayed on the polishing disc 12 during polishing, facilitating the recycling of the polishing liquid.

[0036] As an example, the swing assembly 2 may include a swing motor 21, a swing runner 22, a swing frame 23 and a hinge seat 24; the swing motor 21 is arranged in the housing 4, the output end of the swing motor 21 penetrates through the top position of the housing 4 and is connected to the swing runner 22, the hinge seat 24 is fixed on the top of the housing 4, and the swing frame 23 may include a first swing arm 25 and a second swing arm 26; the first swing arm 25 is connected to the swing runner 22, and the second swing arm 26 is spherically hinged to the hinge seat 24;

[0037] A sliding groove 27 is provided on the swinging runner 22. A connecting vertical rod 28 is provided at the end of the first swinging arm 25. The top of the connecting vertical rod 28 is hinged to the first swinging arm 25. The bottom of the connecting vertical rod 28 is movably arranged in the sliding groove 27 through two nuts 29, so that the end of the connecting vertical rod 28 can move along the length direction of the sliding groove 27.

[0038] Based on the above structure, the swinging motor 21 rotates to drive the swinging runner 22 to rotate, thereby driving the entire swinging frame 23 to rotate around the hinge seat 24. By movably arranging the end of the connecting vertical rod 28 in the sliding groove 27 through two nuts 29, the swinging of the entire swinging arm can be made smoother.

[0039] As an example, a support sleeve 210 is sleeved on the first swinging arm 25 and the second swinging arm 26. A triangular support frame 211 is provided on the support sleeve 210. The reverse motor 5 is fixed to the upper end of the triangular support frame 211 through the auxiliary support rod 36. The output end of the reverse motor 5 faces the end of the triangular support frame 211. A connecting sleeve 212 can be provided on the output end of the reverse motor 5;

[0040] Based on the above structure, a support sleeve 210 is sleeved on the first swinging arm 25 and the second swinging arm 26. When grinding is not required, the entire triangular support frame 211 can be flipped by rotating the support sleeve 210 to avoid the entire polishing disc 12 part, which is convenient for cleaning and maintenance operations. At the same time, the reverse motor 5 is lifted by the auxiliary support frame so that it is exactly located at the end of the triangular support frame 211, enabling the reverse motor 5 to be quickly assembled with the clamping part 6.

[0041] As an example, the clamping part 6 can include a connecting rod 213 and a clamping assembly; a damping groove 214 can be provided on the clamping assembly; a damping head 215 can be provided at the end of the connecting rod 213, and the shape of the damping head 215 is adapted to the damping groove 214; one end of the connecting rod 213 is arranged in the connecting sleeve 212. Or the connecting rod 213 is fixedly connected to the clamping assembly.

[0042] Based on the above structure, the connecting rod 213 and the reverse motor 5 are connected as a whole through the connecting sleeve 212. The output force of the reverse motor 5 can be transmitted to the clamping assembly through the connecting rod 213. When starting to grind, the reverse motor 5 can be started to decelerate or reverse the clamping part 6 to achieve a better grinding effect.

[0043] As an example, the clamping assembly may include a clamping block 216, a clamping arm 217, and a locking member 218; a threaded post 219 is provided at the center of the clamping block 216, and auxiliary holes 220 are provided at the circumferential position of the clamping block 216. The central angle of the auxiliary holes 220 is 120°. A snap ring 221 adapted to the size of the threaded post 219 is provided at the end of the clamping arm 217, and a locking hole 222 matching the auxiliary hole 220 is provided on the side wall of the clamping arm 217; the snap ring 221 is snapped into the threaded post 219, and the locking hole 222 and the auxiliary hole 220 are fixed by a screw 37 to fix the position of the clamping arm 217.

[0044] The damping groove 214 is provided at the top position of the locking member 218. A threaded sleeve is provided at the bottom of the locking member 218, and the threaded sleeve can be screwed into the threaded post 219 to lock the clamping arm 217 and prevent the clamping arm 217 from loosening during movement.

[0045] Based on the above structure, the three clamping arms 217 can effectively prevent the optical element 8 from slipping, ensuring the stability of clamping the optical element 8.

[0046] As an example, a dimension table 7 may be provided on the triangular support frame 211, and the end of the dimension table 7 is always in contact with the top of the optical element 8 to be polished.

[0047] Based on the above structure, when the polishing device is operating, the measuring head is suspended and fixed above the optical element 8 with a fixing knob. When the polishing device stops, the fixing knob is loosened to read the reading, so as to achieve the purpose of measuring the size of the optical element 8 at any time when the machine stops.

[0048] As an example, the spraying assembly 3 may include a spray pipe 31, a liquid return pipe 32, a liquid storage tank 33, a water pump 34, and a filter 35; the spray pipe 31 is provided on the polishing disc 12, the liquid return pipe 32 is connected to the bottom position of the receiving disc 13, the spray pipe 31 sprays liquid outward through the water pump 34, the spray pipe 31, the liquid return pipe 32, and the water pump 34 are all connected to the liquid storage tank 33, and the filter 35 is provided on the spray pipe 31.

[0049] Based on the above structure, the spraying assembly 3 returns the polishing liquid used in the polishing disc 12, and at the same time filters the polishing liquid through the two-stage filter 35 to reduce the influence of particulate impurities on polishing.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical polishing machine, characterized in that, It includes a polishing disc assembly, a swing assembly, a spraying assembly and a housing; the power ends of the polishing disc assembly and the swing assembly are arranged inside the housing, a reverse motor is arranged on the swing assembly, the output end of the reverse motor faces the polishing disc part of the polishing disc assembly, and a clamping part is detachably connected to the output end of the reverse motor; the clamping part clamps the optical element to be polished; the output end of the spraying assembly is arranged close to the polishing disc part, and the inlet end of the spraying assembly is connected to the receiving disc at the bottom of the polishing disc part.

2. An optical polishing machine according to claim 1, characterized in that: The polishing disc assembly includes a main motor, a polishing disc and a receiving disc; the receiving disc is embedded in the upper surface of the housing, the output end of the main motor penetrates through the receiving disc and is connected to the polishing disc, and the size of the receiving disc is not less than that of the polishing disc.

3. An optical polishing machine according to claim 2, characterized in that: The swing assembly includes a swing motor, a swing runner, a swing frame and a hinge seat; the swing motor is arranged in the housing, the output end of the swing motor penetrates through the top of the housing and is connected to the swing runner, the hinge seat is fixed on the top of the housing, and the swing frame includes a first swing arm and a second swing arm; the first swing arm is connected to the swing runner, and the second swing arm is spherically hinged to the hinge seat.

4. An optical polishing machine according to claim 3, characterized in that: A sliding groove is arranged on the swing runner, a connecting vertical rod is arranged at the end of the first swing arm, the top of the connecting vertical rod is hinged to the first swing arm, and the bottom of the connecting vertical rod is movably arranged in the sliding groove through two nuts, so that the end of the connecting vertical rod can move along the length direction of the sliding groove.

5. An optical polishing machine according to claim 4, characterized in that: Support sleeves are sleeved on the first swing arm and the second swing arm, a triangular support frame is arranged on the support sleeve, the reverse motor is fixed to the upper end of the triangular support frame through an auxiliary support rod, the output end of the reverse motor faces the end of the triangular support frame, and a connecting sleeve is arranged on the output end of the reverse motor.

6. An optical polishing machine according to claim 5, characterized in that: The clamping part includes a connecting rod and a clamping assembly; a damping groove is arranged on the clamping assembly; a damping head is arranged at the end of the connecting rod, and the shape of the damping head is adapted to the damping groove; one end of the connecting rod is arranged in the connecting sleeve.

7. An optical polishing machine according to claim 6, characterized in that: The clamping assembly includes a clamping block, a clamping arm and a locking part; a threaded column is arranged at the center of the clamping block, auxiliary holes are arranged along the circumferential position of the clamping block, the central angle of the auxiliary holes is 120°, a clamping ring adapted to the size of the threaded column is arranged at the end of the clamping arm, and locking holes matched with the auxiliary holes are arranged on the side wall of the clamping arm; the clamping ring is clamped into the threaded column, and the locking holes and the auxiliary holes are fixed by a screw.

8. An optical polishing machine according to claim 7, characterized in that: The damping groove is arranged at the top position of the locking part, and a threaded sleeve is arranged at the bottom of the locking part.

9. An optical polishing machine according to claim 8, characterized in that: A dimension table is arranged on the triangular support frame.

10. An optical polishing machine as claimed in claim 9, characterized in that: The spraying assembly includes a spraying pipe, a liquid return pipe, a liquid storage tank, a water pump and a filter; the spraying pipe is arranged on the polishing disc, the liquid return pipe is connected to the bottom position of the receiving disc, the spraying pipe sprays polishing liquid outwards through the water pump, the spraying pipe, the liquid return pipe and the water pump are all connected to the liquid storage tank, and the filter is arranged on the spraying pipe.

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