Base for lens polishing

Abstract

The utility model relates to the field of lens manufacturing, and discloses a lens polishing base which comprises a machine body, a polishing box is fixedly connected to the top of the machine body, a hollow block is fixedly connected to the inner wall of the polishing box, a power mechanism is arranged on the inner wall of the hollow block, and the power mechanism comprises a motor. An output shaft of the motor is fixedly connected with a main shaft, the inner wall of the main shaft is elastically connected with a trapezoidal block through a first spring, the outer wall of the main shaft is rotationally connected with a hollow gear ring disc, and the inner wall of the hollow gear ring disc is fixedly connected with a transmission block. According to the utility model, through the arrangement of the power mechanism, when the lens is propped against the vertical sliding rod and the counter-acting force on the spring I is increased, the trapezoidal block is repeatedly extruded and compressed into the main shaft, the trapezoidal block does not drive the transmission block to rotate, the clamping force on the lens is not increased any more, and the lens is prevented from being broken due to too large clamping force; and the effect of protecting the lenses is achieved.

Description

Technical Field

[0001] The utility model relates to the field of lens manufacturing, in particular to a base for lens polishing. Background Art

[0002] Lens polishing refers to the process of grinding and polishing spectacle lenses or other optical lenses to improve their flatness, smoothness and optical properties.

[0003] After retrieval, Chinese Patent Publication No.: CN219358999U discloses a fixture for optical lens polishing, including a base with a positioning table provided thereon. An installation plate is detachably connected to the base. The installation plate has positioning holes, and an installation boss is provided on the installation plate. A positioning block is provided in the space surrounded by the installation boss. The positioning block is provided with a rod body, and a guide hole is provided on the installation boss. An adjusting wheel is provided on the installation plate, and the adjusting wheel is concentric with the installation boss. The adjusting wheel has a variable diameter portion, and the linear distance between the variable diameter portion and the center of the installation boss gradually increases or decreases along the circumferential direction of the installation boss. The rod body abuts against the variable diameter portion. A pressing block is also provided on the installation plate, and the pressing block abuts against the adjusting wheel and presses the adjusting wheel tightly on the installation plate. The utility model solves the technical problem that it is inconvenient to clamp and remove optical lenses with the fixture for optical lens polishing, and produces the technical effects of simplifying the operation of clamping and removing optical lenses and being convenient to use.

[0004] However, when the device clamps the lens, only the synchronous adjusting block approaches the optical lens and abuts against the side surface of the optical lens to clamp the optical lens. However, the thickness dimensions of different lenses are different. Thicker lenses will cause more compression of the elastic element, resulting in a greater clamping force. Excessive clamping force will cause the optical lens to break and lead to material loss. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a base for lens polishing, aiming to improve the problem that excessive clamping force of the fixture for optical lens polishing in the prior art will cause the optical lens to break.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A base for lens polishing includes a machine body. A polishing box is fixedly connected to the top of the machine body. A hollow block is fixedly connected to the inner wall of the polishing box. A power mechanism is arranged on the inner wall of the hollow block. The power mechanism includes a motor. The output shaft of the motor is fixedly connected to a main shaft. A trapezoidal block is elastically connected to the inner wall of the main shaft through a first spring. A hollow gear ring is rotatably connected to the outer wall of the main shaft. A transmission block is fixedly connected to the inner wall of the hollow gear ring. A symmetric screw rod is rotatably connected to the inner wall of the hollow block. A gear is fixedly connected to the outer wall of the symmetric screw rod. A clamping mechanism is arranged on the hollow block.

[0007] As a further description of the above technical solution:

[0008] The clamping mechanism includes a sliding square block. A support arm is hinged to the outer wall of the sliding square block. The outer wall of the support arm is elastically connected to the outer wall of the sliding square block through a second spring. A vertical sliding rod is fixedly connected to the outer wall of the support arm. A fixed disk is fixedly connected to the outer wall of the vertical sliding rod. A positioning slider is elastically connected to the outer wall of the fixed disk close to the support arm through a third spring. A transverse chute is formed at the top of the hollow block, and a base mechanism is arranged on the top of the hollow block.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the hollow block is fixed to the bottom of the motor, and the top of the trapezoidal block is an inclined surface.

[0011] As a further description of the above technical solution:

[0012] One end of the first spring is fixedly connected to the inner wall of the main shaft, and the other end of the first spring is fixedly connected to the outer wall of the trapezoidal block.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the hollow gear ring is meshed with the outer wall of the gear, and the transmission blocks are arranged in a circular array on the inner wall of the hollow gear ring.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the symmetric screw is threadedly connected to the inner wall of the sliding square block. The inner wall of the transverse chute is slidably connected to the outer wall of the sliding square block. One end of the second spring is fixed to the outer wall of the support arm, and the other end of the second spring is fixed to the outer wall of the sliding square block. One end of the third spring is fixed to the outer wall of the fixed disk, and the other end of the third spring is fixed to the outer wall of the positioning slider. The inner wall of the positioning slider is slidably connected to the outer wall of the vertical sliding rod. An arc-shaped chamfer is formed on the outer wall of the positioning slider close to the support arm.

[0017] As a further description of the above technical solution:

[0018] The base mechanism includes a hollow ring block. The bottom of the hollow ring block is fixedly connected to the top of the hollow block. A suction cup is elastically connected to the top of the hollow block through a fourth spring. The inner wall of the hollow ring block is slidably connected to the outer wall of the suction cup. A vertical chute is formed at the top of the hollow ring block. A hose is fixedly connected to the outer wall of the suction cup.

[0019] As a further description of the above technical solution:

[0020] One end of the fourth spring is fixed to the top of the hollow block, and the other end of the fourth spring is fixedly connected to the bottom of the suction cup.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by arranging a power mechanism, when the lens is abutted by the vertical sliding rod, the reaction force received by the first spring increases. At this time, the trapezoidal block is repeatedly squeezed and compressed into the main shaft. At this time, the trapezoidal block no longer drives the transmission block to rotate, and at this time, the clamping force on the lens no longer increases, preventing the lens from being crushed due to too large clamping force, playing a role in protecting the lens.

[0023] 2. In the utility model, by arranging a clamping mechanism, the arc chamfer part of the positioning slider abuts against the lens, so that the positioning slider squeezes the third spring upward, enabling lenses with different thicknesses to be clamped longitudinally by the upper and lower positioning sliders. At this time, the four vertical sliding rods also abut against the side surface of the lens, enabling lenses with different diameters to be clamped on the plane, facilitating the clamping of lenses of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view schematic diagram of a base for lens polishing proposed by the utility model;

[0025] Figure 2 It is a sectional view schematic diagram of a polishing box of a base for lens polishing proposed by the utility model;

[0026] Figure 3 It is a sectional view schematic diagram of a hollow block of a base for lens polishing proposed by the utility model;

[0027] Figure 4 It is a schematic diagram of a sliding square block of a base for lens polishing proposed by the utility model;

[0028] Figure 5 It is a schematic diagram of a positioning slider of a base for lens polishing proposed by the utility model;

[0029] Figure 6 It is a schematic diagram of a power mechanism of a base for lens polishing proposed by the utility model;

[0030] Figure 7 It is a schematic diagram of a base mechanism of a base for lens polishing proposed by the utility model.

[0031] Legend Explanation:

[0032] 1. Body; 2. Polishing box; 3. Hollow block; 4. Power mechanism; 41. Motor; 42. Main shaft; 43. First spring; 44. Hollow gear ring disc; 45. Transmission block; 46. Symmetric screw; 47. Gear; 48. Trapezoidal block; 5. Clamping mechanism; 51. Sliding square block; 52. Horizontal chute; 53. Support arm; 54. Second spring; 55. Vertical slide bar; 56. Fixed disc; 57. Third spring; 58. Positioning slider; 59. Base mechanism; 591. Hollow ring block; 592. Fourth spring; 593. Suction cup; 594. Vertical chute; 595. Hose. Detailed implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Refer to Figure 1 - Figure 7 , a base for lens polishing, including a body 1. The body 1 is the main body of the polishing machine and provides support. A polishing box 2 is fixedly connected to the top of the body 1. The polishing box 2 is used to place optical lenses for processing to prevent material splashing during polishing. A hollow block 3 is fixedly connected to the inner wall of the polishing box 2. The hollow block 3 is used to provide support for the power mechanism 4. A power mechanism 4 is arranged on the inner wall of the hollow block 3. The power mechanism 4 includes a motor 41. The output shaft of the motor 41 is fixedly connected to a main shaft 42. The motor 41 and the main shaft 42 provide output. When it is necessary to clamp and fix the lens, the staff starts the motor 41 to drive the main shaft 42 to rotate. A trapezoidal block 48 is elastically connected to the inner wall of the main shaft 42 through a first spring 43. The trapezoidal block 48 can reciprocate on the inner wall of the main shaft 42. A hollow gear ring disc 44 is rotatably connected to the outer wall of the main shaft 42. A transmission block 45 is fixedly connected to the inner wall of the hollow gear ring disc 44. The main shaft 42 drives the trapezoidal block 48 to rotate, so that the trapezoidal block 48 rotates to abut against the transmission block 45. The transmission block 45 can abut against the trapezoidal block 48 to complete transmission, so that the trapezoidal block 48 drives the hollow gear ring disc 44 to rotate through the transmission block 45. A symmetric screw 46 is rotatably connected to the inner wall of the hollow block 3. The hollow gear ring disc 44 drives the symmetric screw 46 to rotate through a gear 47. The symmetric screw 46 drives a sliding square block 51 to move. The screw has a self-locking function. Therefore, the symmetric screw 46 plays the functions of transmission and self-locking. A gear 47 is fixedly connected to the outer wall of the symmetric screw 46. The gear 47 is used for meshing transmission. A clamping mechanism 5 is arranged on the hollow block 3. The clamping mechanism 5 is used to stably clamp the lens to facilitate subsequent polishing processing. It belongs to the base for lens polishing.

[0035] Refer to Figure 3 - Figure 6 , the clamping mechanism 5 includes a sliding square block 51. The sliding square block 51 moves horizontally when the symmetric screw 46 rotates, so that the two groups of sliding square blocks 51 move inwards or outwards simultaneously to achieve the purpose of clamping the lens. A support arm 53 is hinged to the outer wall of the sliding square block 51. When clamping the lens, the support arm 53 rotates outwards around the hinge point and presses the second spring 54. The outer wall of the support arm 53 is elastically connected to the outer wall of the sliding square block 51 through the second spring 54. A vertical sliding rod 55 is fixedly connected to the outer wall of the support arm 53. The second spring 54 buffers the impact force when the vertical sliding rod 55 on the outer wall of the support arm 53 touches the lens, avoiding damage caused by rigid contact. A fixed disk 56 is fixedly connected to the outer wall of the vertical sliding rod 55. A positioning slider 58 is elastically connected to the outer wall of the fixed disk 56 close to the support arm 53 through a third spring 57. The positioning slider 58 can slide stably up and down on the outer wall of the vertical sliding rod 55. The third spring 57 makes the positioning slider 58 stably touch the lens. A horizontal chute 52 is opened at the top of the hollow block 3. The horizontal chute 52 ensures the stable horizontal sliding of the sliding square block 51. A base mechanism 59 is arranged at the top of the hollow block 3.

[0036] Refer to Figures 3 - 7 , the inner wall of the hollow block 3 is fixed to the bottom of the motor 41, playing a fixing role. The top of the trapezoidal block 48 is an inclined surface, so that when the inclined surface of the trapezoidal block 48 touches the transmission block 45, a force is generated to make the trapezoidal block 48 move towards the inner wall of the main shaft 42. When the clamping force is too large, the trapezoidal block 48 moves towards the main shaft 42.

[0037] Refer to Figures 3 - 7, One end of the first spring 43 is fixedly connected to the inner wall of the main shaft 42, and the other end of the first spring 43 is fixedly connected to the outer wall of the trapezoidal block 48. Without the influence of external forces, the trapezoidal block 48 is driven by the force of the first spring 43 to keep moving outwards. The outer wall of the hollow gear ring 44 meshes with the outer wall of the gear 47. The transmission blocks 45 are arranged in a circular array on the inner wall of the hollow gear ring 44. When the lens is not being fitted and clamped, the trapezoidal block 48 drives the transmission blocks 45 to rotate and move simultaneously during rotation. The outer wall of the symmetric screw 46 is threadedly connected to the inner wall of the sliding square block 51, so that when the symmetric screw 46 rotates, it can drive the sliding square block 51 to move horizontally. The inner wall of the horizontal chute 52 is slidably connected to the outer wall of the sliding square block 51, so that the sliding square block 51 moves stably on the inner wall of the horizontal chute 52. One end of the second spring 54 is fixedly connected to the outer wall of the support arm 53, and the other end of the second spring 54 is fixedly connected to the outer wall of the sliding square block 51, playing a role of elastic connection and avoiding rigid contact between the support arm 53 and the vertical sliding rod 55. One end of the third spring 57 is fixedly connected to the outer wall of the fixed disk 56, and the other end of the third spring 57 is fixedly connected to the outer wall of the positioning slider 58, so that the positioning slider 58 can squeeze the third spring 57 and move vertically on the surface of the vertical sliding rod 55. When clamping the lens, the third spring 57 drives the positioning slider 58 to closely adhere to the outer wall of the lens. The inner wall of the positioning slider 58 is slidably connected to the outer wall of the vertical sliding rod 55. An arc-shaped chamfer is provided on the outer wall of the side of the positioning slider 58 close to the support arm 53. When the arc-shaped chamfer of the positioning slider 58 abuts the lens, the lens exerts a vertical force on the positioning slider 58, causing the positioning slider 58 to move away from the lens, so that the two positioning sliders 58 separate and abut the upper and lower parts of the lens.

[0038] Refer to Figures 3 - 7 , The base mechanism 59 includes a hollow ring block 591. The bottom of the hollow ring block 591 is fixedly connected to the top of the hollow block 3. The hollow block 3 provides a support and fixation effect for the hollow ring block 591. The top of the hollow block 3 is elastically connected with a suction cup 593 through a fourth spring 592. The inner wall of the hollow ring block 591 is slidably connected to the outer wall of the suction cup 593, so that the suction cup 593 slides vertically stably along the inner wall of the hollow ring block 591. A vertical chute 594 is provided at the top of the hollow ring block 591, which enables the hose 595 to move up and down. The outer wall of the suction cup 593 is fixedly connected with a hose 595. The bottom of the hose 595 is connected to a suction machine, and the suction machine is started to provide and release the hollow effect for the suction cup 593. One end of the fourth spring 592 is fixedly connected to the top of the hollow block 3, and the other end of the fourth spring 592 is fixedly connected to the bottom of the suction cup 593. The fourth spring 592 enables the suction cup 593 to move up and down, so that when the lens is clamped, the suction cup 593 can be finely adjusted up and down according to the different thickness dimensions of the clamped lens, so that the suction cup 593 can tightly adsorb the lens.

[0039] Working principle: Use the clamping arm to place the optical lens to be processed on the top of the suction cup 593. Evacuate the suction cup 593 through the hose 595 so that the lens to be processed is initially adsorbed. At this time, the adsorption force is not sufficient for grinding processing and further clamping is required, which plays a role of preliminary fixation.

[0040] Start the motor 41. The output shaft of the motor 41 drives the main shaft 42 to rotate forward. The main shaft 42 drives the trapezoidal block 48 to rotate forward. The inclined surface of the trapezoidal block 48 abuts against the transmission block 45 and drives the transmission block 45 to rotate forward under the action of the first spring 43. The transmission block 45 drives the hollow gear ring 44 to rotate forward. The hollow gear ring 44 drives the meshing gear 47 to rotate. The gear 47 drives the symmetric screw 46 to rotate. The symmetric screw 46 drives the sliding square block 51 to move in the direction of the lens in the horizontal chute 52. The sliding square block 51 drives the support arm 53, the second spring 54, the vertical slide bar 55, the fixed disk 56, the third spring 57, and the positioning slider 58 to move towards the lens to be polished until the arc chamfered part of the positioning slider 58 abuts against the lens, causing the positioning slider 58 to squeeze the third spring 57 upward, so that lenses of different thicknesses are clamped longitudinally by the upper and lower positioning sliders 58. At this time, the four vertical slide bars 55 also abut against the side of the lens, so that lenses of different diameters are clamped on the plane, facilitating the clamping of lenses of different sizes.

[0041] When the lens is abutted by the vertical slide bar 55, the reaction force received by the first spring 43 increases. At this time, the trapezoidal block 48 is repeatedly squeezed and compressed into the main shaft 42. At this time, the trapezoidal block 48 no longer drives the transmission block 45 to rotate, and the clamping force on the lens no longer increases, preventing the lens from being crushed due to too large clamping force, which plays a role in protecting the lens.

[0042] When it is necessary to release the clamping, start the motor 41 to rotate in reverse. The motor 41 drives the main shaft 42 to rotate in reverse. The main shaft 42 drives the flat part of the trapezoidal block 48 to abut against the transmission block 45, causing the transmission block 45 to rotate in reverse and driving the clamping mechanism 5 to move away from the lens along the above transmission path.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lens polishing base, comprising a body (1), characterized in that: The top of the machine body (1) is fixedly connected to a polishing box (2), the inner wall of the polishing box (2) is fixedly connected to a hollow block (3), the inner wall of the hollow block (3) is provided with a power mechanism (4), the power mechanism (4) comprises a motor (41), the output shaft of the motor (41) is fixedly connected to a main shaft (42), the inner wall of the main shaft (42) is elastically connected to a trapezoidal block (48) via a spring (43), the outer wall of the main shaft (42) is rotatably connected to a hollow gear ring disk (44), the inner wall of the hollow gear ring disk (44) is fixedly connected to a transmission block (45), the inner wall of the hollow block (3) is rotatably connected to a symmetrical screw (46), the outer wall of the symmetrical screw (46) is fixedly connected to a gear (47), and a clamping mechanism (5) is provided on the hollow block (3).

2. A lens polishing base according to claim 1, characterized in that: The clamping mechanism (5) comprises a sliding square block (51), the outer wall of the sliding square block (51) is hinged with a support arm (53), the outer wall of the support arm (53) is elastically connected to the outer wall of the sliding square block (51) through a second spring (54), the outer wall of the support arm (53) is fixedly connected with a vertical slide rod (55), the outer wall of the vertical slide rod (55) is fixedly connected with a fixed plate (56), the outer wall of the fixed plate (56) on one side close to the support arm (53) is elastically connected with a positioning slider (58) through a third spring (57), a transverse slide groove (52) is provided on the top of the hollow block (3), and a base mechanism (59) is provided on the top of the hollow block (3).

3. A lens polishing base according to claim 1, characterized in that: The inner wall of the hollow block (3) is fixed to the bottom of the motor (41), and the top of the trapezoidal block (48) is an inclined surface.

4. The lens polishing base according to claim 1, characterized in that: One end of the spring 1 (43) is fixedly connected to the inner wall of the main shaft (42), and the other end of the spring 1 (43) is fixedly connected to the outer wall of the trapezoidal block (48).

5. The lens polishing base according to claim 1, characterized in that: The outer wall of the hollow gear ring disk (44) meshes with the outer wall of the gear (47), and the transmission blocks (45) are arranged in a circular array on the inner wall of the hollow gear ring disk (44).

6. A lens polishing base according to claim 2, characterized in that: The outer wall of the symmetrical screw rod (46) is threadedly connected to the inner wall of the sliding square block (51), the inner wall of the horizontal sliding groove (52) is slidably connected to the outer wall of the sliding square block (51), one end of the spring two (54) is fixed to the outer wall of the bracket arm (53), the other end of the spring two (54) is fixed to the outer wall of the sliding square block (51), one end of the spring three (57) is fixed to the outer wall of the fixed plate (56), the other end of the spring three (57) is fixed to the outer wall of the positioning slide block (58), the inner wall of the positioning slide block (58) is slidably connected to the outer wall of the vertical slide rod (55), and the outer wall of the positioning slide block (58) on one side close to the bracket arm (53) is provided with an arc chamfer.

7. The lens polishing base according to claim 2, characterized in that: The base mechanism (59) comprises a hollow ring block (591), the bottom of the hollow ring block (591) is fixedly connected to the top of the hollow block (3), the top of the hollow block (3) is elastically connected to a suction cup (593) via a spring four (592), the inner wall of the hollow ring block (591) is slidably connected to the outer wall of the suction cup (593), a vertical slide groove (594) is provided on the top of the hollow ring block (591), and the outer wall of the suction cup (593) is fixedly connected to a hose (595).

8. The lens polishing base according to claim 7, characterized in that: One end of the spring four (592) is fixed to the top of the hollow block (3), and the other end of the spring four (592) is fixedly connected to the bottom of the suction cup (593).

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