CN214979904U - Optical lens piece anchor clamps - Google Patents

Abstract

The utility model provides an optical lens piece anchor clamps, including being used for two grip blocks of centre gripping lens and being used for driving the actuating mechanism of two grip blocks motion or phase motion, every the grip block all is equipped with size adjustment mechanism, and size adjustment mechanism includes a plurality of clamping parts that set up along the clamping side equipartition of grip block, and every clamping part all with grip block elastic sliding connection, during the use, a plurality of clamping parts all with lens contact or part and lens contact be used for lens multiple spot centre gripping, behind a plurality of clamping parts centre gripping lens and fixed with the grip block through fixed establishment. The mode of clamping the lens by the clamping blocks in the prior art is changed into a mode of multi-point clamping of a plurality of clamping parts to the lens, and the clamping parts are fixed with the clamping blocks by the fixing mechanism, so that the fixture can clamp blank lenses of different sizes, the minimum distance between the two clamping blocks is not required to be adjusted, the distance adjusting assembly between the two clamping blocks is reduced, and the stability between the two clamping blocks is ensured.

Description

Optical lens piece anchor clamps

Technical Field

The utility model relates to an anchor clamps technical field, in particular to optical lens piece anchor clamps.

Background

When the optical glass is used, oxides of high-purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium and the like are mixed according to a specific formula, the mixture is melted at a high temperature in a platinum crucible, the mixture is uniformly stirred by ultrasonic waves, bubbles are removed, and then the temperature is slowly reduced for a long time so as to prevent a glass block from generating internal stress, and the cooled glass block has excellent properties such as transparency, uniformity, refractive index, dispersion rate and the like, and is widely applied to the technical field of optical lenses. An important part of an optical lens type that images by refraction of light is generally used in optical devices such as a lens of a camera, a microscope, and the like.

In the course of working at optical lens, polish the terminal surface to the blank mirror surface of tailorring earlier usually, fix in the dedicated anchor clamps need be installed to the blank lens this moment to the polisher is polished the blank, and the lens anchor clamps of current polisher often only fix to the lens of a fixed dimension, need change different anchor clamps when installing the lens of different models, size, have increased the cost and have dropped into, have reduced work efficiency.

In order to solve the above problems, a lens fixture in the prior art is improved, as shown in fig. 1, the fixture includes a base 4 for placing a lens and two clamping blocks 223 for clamping the lens, the two clamping blocks 223 are oppositely disposed and are respectively driven relatively or moved back and forth by a cylinder 222, and the cylinder 222 needs to adjust the distance between the two cylinders 222 to adjust the distance between the two clamping blocks 223 in the clamping state under the condition that the moving distance of the piston rod cannot be controlled.

Therefore, the distance between the two cylinders 222 is adjusted by an adjusting assembly, the adjusting assembly includes two mounting grooves 12 formed on the base 4, two moving plates 231 respectively disposed in the two mounting grooves 12, and compression springs 232 respectively disposed between the moving plates 231 and the corresponding mounting grooves 12, the two corresponding moving plates 231 are respectively fixed to the two cylinders 222, wedge surfaces are disposed on the two moving rods 231, and the two wedge surfaces are disposed with wedge blocks 212 used in cooperation.

When the clamping device is used, the wedge block 212 moves up or down, and the two moving rods 231 move relatively or away from each other under the action of the compression spring 232 to adjust the distance between the two cylinders 222, so that the minimum distance between the two piston rods of the two cylinders 222 is changed, and further the distance between the two clamping blocks 223 is changed.

However, foretell adjusting part utilizes compression spring, the carriage release lever, the scarf and the voussoir that uses with the scarf cooperation are adjusted the distance of two cylinders, in fact compression spring has deformability, even if compression spring is in compression state when between mounting groove and carriage release lever, there is the thrust towards the voussoir to the carriage release lever, but at the in-process of centre gripping blank lens, the blank lens need be polished, the blank lens receives external influence, the vibration that brings can make compression spring also can receive the influence of vibrational force, and then make the carriage release lever have the microvibration between compression spring and voussoir, the grip block that leads to setting up on the cylinder can become flexible to the centre gripping of blank lens, lead to anchor clamps to the centre gripping of blank lens and insecure.

And above-mentioned cylinder directly adopts servo cylinder, though can control the displacement of cylinder piston rod, the interval of two grip blocks of direct control, a blank lens for the not unidimensional of centre gripping, however, the blank lens all is the circular structure that has certain thickness, need effectively fix the centre gripping with the blank lens, just need set the centre gripping side of grip block to the arc structure, be convenient for bigger with the circumference area of contact of lens, stabilize the centre gripping, and the circular arc size of the lens of different radiuses is different, even if adopt the interval between two grip blocks of servo cylinder control, also can not make the grip block of fixed knot structure to the firm centre gripping of the lens of not unidimensional.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides an optical lens piece anchor clamps has solved among the prior art unstable problem when the anchor clamps that can the centre gripping unidimensional blank lens are to the blank lens centre gripping.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an optical lens clamp comprises two clamping blocks for clamping a lens and a driving mechanism for driving the two clamping blocks to move oppositely or away from each other, wherein each clamping block is provided with a size adjusting mechanism,

the size adjusting mechanism comprises a plurality of clamping parts which are uniformly distributed along the clamping side of the clamping block, each clamping part is elastically connected with the clamping block in a sliding way,

when the multi-point lens clamping device is used, the plurality of clamping parts are in contact with the lens or are partially in contact with the lens to be used for multi-point clamping of the lens, and the plurality of clamping parts clamp the lens and are fixed with the clamping blocks through the fixing mechanism.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model arranges a plurality of clamping parts at the clamping side of the clamping block, and each clamping part is elastically connected with the clamping block in a sliding way, when clamping the lenses with different sizes, the sliding distance of different clamping parts along the clamping block is different, which can ensure that a plurality of clamping parts are all contacted with the blank lens or part of the clamping parts are contacted with the blank lens, changes the surface clamping mode of the clamping block to the lens in the prior art into the multi-point clamping mode of a plurality of clamping parts to the lens, and then utilizes the fixing mechanism to fix a plurality of clamping parts and the clamping block, realizes the fixed clamping of the clamp to the blank lenses with different sizes, does not need to adjust the minimum distance between two clamping blocks, reduces the distance adjusting component between two clamping blocks, ensures the stability between the two clamping blocks, and simultaneously can ensure that the clamping blocks are not replaced, the clamping of the lenses with different sizes can be effectively clamped, ensure the stability of the lens during the grinding process.

Drawings

FIG. 1 is a schematic view of a portion of a prior art clamp;

FIG. 2 is a schematic structural view of the present invention; the utility model discloses a schematic diagram of the matching of a placing box and a knocking block;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a front view of the fixing mechanism and the clamping block of the present invention;

fig. 5 is a comparison diagram of the lenses of the present invention with different diameters clamped by the two clamping blocks.

In the figure: 1. a clamping cylinder; 2. a fixed mount; 3. a sliding seat; 4. a clamping block; 5. a mounting frame; 6. a driving cylinder; 7. an upper fixed block; 8. a spring telescopic rod; 9. a lower fixed block; 10. a clamping portion; 11. a bottom support portion; 12. a base; 13. a first rack; 14. a drive gear; 15. a second rack; 16. a lens; 81. fixing the rod; 82. a movable rod; 83. a torsion spring; 84. a shaft pin; 85. mounting grooves; 91. a lower clamping groove; 71. an upper clamping groove; 141. a connecting shaft; 101. connecting sleeves; 102. a rubber non-slip mat; 41. a slider; 121. a sliding groove.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 2, an embodiment of the present invention provides an optical lens fixture, which includes two clamping blocks 4 for clamping a lens 16 and a driving mechanism for driving the two clamping blocks 4 to move in opposite directions or away from each other, in order to facilitate the installation of the two clamping blocks 4, the two clamping blocks 4 are disposed on a base 12; for the removal that two grip blocks 4 can be steady when relative movement, the utility model discloses be equipped with two sliding tray 121 on the base 12, two grip blocks 4 use and are equipped with respectively with the sliding tray 121 sliding fit's sliding block 41 with the cooperation of two sliding tray 121 respectively. Through the cooperation of sliding tray 121 and sliding block 41, can not only inject the moving direction of grip block 4, can also ensure the stationarity of grip block 4 at the removal in-process, be convenient for to the centre gripping of blank lens 16.

In order to facilitate the movement of the two clamping blocks 4, the driving mechanism can be a servo motor with a screw rod, the screw rod is connected with the clamping blocks 4, and the servo motor is started to drive the clamping blocks 4 to move back and forth along the length direction of the screw rod; actuating mechanism still can be as the utility model discloses the structure that sets up, as shown in fig. 2, it is concrete, actuating mechanism includes the centre gripping cylinder 1 of two relative settings, and two centre gripping cylinders 1 all pass through mount 2 with base 12 and fix, and the piston rod of two centre gripping cylinders 1 is fixed with two grip blocks 4 respectively. And starting the clamping cylinder 1 to drive the two clamping blocks 4 to move to clamp the blank lens 16.

As shown in fig. 2, in order to facilitate the positioning of the blank lens 16 before clamping, the bottom support portion 11 is fixed on the base 12, and a concave groove matched with the lens 16 is formed at the top of the bottom support portion 11. And placing the cut blank lens 16 on the bottom supporting part 11, and then starting the clamping cylinder 1 to drive the two clamping blocks 4 to move to clamp the blank lens 16.

Because the clamping blocks 4 arranged in the utility model need to clamp the lenses 16 with different sizes, although the clamping cylinder 1 can be set as a servo cylinder, the moving distance of the piston rod of the clamping cylinder 1 is controlled, and the distance between the two clamping blocks 4 is further changed, so as to clamp the lenses 16 with different radius sizes; however, since the circular arcs of the lenses 16 with different radii are different in size, when the circular lens 16 is clamped, the clamping side of the clamping block 4 needs to be set to be an arc-shaped structure matched with the circular lens 16, so that the lens 16 can be clamped; when lenses 16 with different radii are clamped, if the clamping side of the clamping blocks 4 is a fixed structure, the lenses 16 are clamped only by adjusting the distance between the clamping blocks 4, which reduces the contact area between the lenses 16 and the clamping blocks 4, and also causes the clamping blocks 4 not to stably clamp the lenses 16 with different radii.

As shown in fig. 2 and 5, for making the utility model discloses two grip blocks 4 that set up can also stabilize the centre gripping to different radial lenses 16 in the condition that does not change minimum distance between the two, the utility model discloses at every grip block 4 all is equipped with size adjustment mechanism, size adjustment mechanism includes a plurality of clamping parts 10 that set up along the centre gripping side equipartition of grip block 4, and every clamping part 10 all is connected with grip block 4 elastic sliding, and during the use, a plurality of clamping parts 10 all are used for lens 16 multiple spot centre gripping with lens 16 contact or part and lens 16 contact, and are fixed with grip block 4 after a plurality of clamping parts 10 centre gripping lens 16 and through fixed establishment. The utility model arranges a plurality of clamping parts 10 at the clamping side of the clamping block 4, each clamping part 10 is elastically connected with the clamping block 4 in a sliding way, when clamping lenses 16 with different sizes, the sliding distance of different clamping parts 10 along the clamping block 4 is different, which can ensure that a plurality of clamping parts 10 are all contacted with a blank lens 16 or part of the clamping parts 10 are contacted with a blank lens 16, changes the surface clamping mode of the clamping block 4 to the lens 16 in the prior art into the multi-point clamping mode of the clamping parts 10 to the lens 16, and then utilizes a fixing mechanism to fix the clamping parts 10 and the clamping block 4, thereby realizing the fixed clamping of the clamp to the blank lenses 16 with different sizes, without adjusting the minimum distance between the two clamping blocks 4, reducing the distance adjusting component between the two clamping blocks 4, ensuring the stability between the two clamping blocks 4, and simultaneously ensuring the condition that the clamping blocks 4 are not replaced, effectively clamping the lens 16 of an unused size ensures the stability of the lens 16 during the grinding process.

As shown in fig. 5, since the lens 16 to be clamped is a circular structure with a certain thickness, the two clamping blocks 4 are arranged oppositely, and the single clamping block 4 needs to contact with the semi-circle circumference of the lens 16 with the circular structure as much as possible, so that the plurality of clamping parts 10 arranged on each clamping part 10 are arranged horizontally side by side.

As shown in fig. 2, in order to facilitate the elastic sliding connection between the plurality of clamping portions 10 and the clamping block 4, each of the clamping portions 10 is connected to the clamping block 4 through a spring telescopic rod 8, the spring telescopic rod 8 includes a fixed rod 81 and a movable rod 82 which are sleeved and connected and a telescopic spring arranged between the fixed rod 81 and the movable rod 82, wherein the fixed rod 81 is fixed to the clamping block 4, and the movable rod 82 is connected to the clamping portion 10. The telescopic spring is arranged in the movable rod 82 and the fixed rod 81, and one end of the telescopic spring is fixed with the fixed rod 81 and the other end is fixed with the movable rod 82. As shown in fig. 5, a comparison chart of two holding blocks 4 holding lenses 16 with different radii is shown, and it can be seen through illustration that: when the moving distances of the piston rods of the two clamping cylinders 1 are the same, the radii of the lenses 16 to be clamped are different, and the distances from the clamping parts 10 on each clamping block 4 to the clamping blocks 4 are different (namely, the lengths of the spring telescopic rods 8 are different), so that the clamping of the lenses 16 with different radii by the clamp is realized without changing the minimum distance between the two clamping blocks 4.

As shown in fig. 2, 4 and 5, because every clamping part 10 is connected with clamping part 10 through spring telescopic rod 8, spring telescopic rod 8 can extend or shorten receiving the effect of external force, will make clamping part 10 behind the centre gripping lens 16 not change (the length of spring telescopic rod 8 is unchangeable) apart from the position of grip block 4, just need carry on spacingly to spring telescopic rod 8, the utility model discloses a fixed establishment is spacing to spring telescopic rod 8, and this fixed establishment mainly uses with movable rod 82 cooperation.

Specifically, fixed establishment includes fixed block 7, lower fixed block 9 and drives and goes up fixed block 7, the lower lifting unit of fixed block 9 removal in opposite directions, goes up fixed block 7, lower fixed block 9 all with grip block 4 sliding connection, upward be equipped with on the fixed block 7 with a plurality of last centre gripping groove 71 that a plurality of movable rod 82 quantity is equivalent, be equipped with a plurality of lower centre gripping grooves 91 that quantity is equivalent with a plurality of movable rod 82 on the fixed block 9 down, every movable rod 82 is fixed between last centre gripping groove 71 that corresponds and lower centre gripping groove 91. Lifting unit is including driving actuating cylinder 6, drive gear 14 and all with drive gear 14 meshing and parallel arrangement's first rack 13, second rack 15, drive gear 14 is connected through connecting axle 141 with grip block 4, and drive gear 14 rotates with connecting axle 141 and is connected, first rack 13 is fixed with last fixed block 7, second rack 15 is fixed with lower fixed block 9, it is fixed through mounting bracket 5 with grip block 4 to drive actuating cylinder 6, just it is fixed with last fixed block 7 or lower fixed block 9 to drive actuating cylinder 6's piston rod.

For the convenient relative movement of going up fixed block 7, lower fixed block 9, set up the sliding seat 3 of two relative vertical relative settings at grip block 4, go up fixed block 7, lower fixed block 9 and all erect between two sliding seats 3 and slide along vertical direction with two sliding seats 3 respectively, two sliding seats 3 can be fixed a position last fixed block 7, lower fixed block 9. The utility model discloses the drive gear 14, first rack 13 and the second rack 15 that set up can set up one respectively, and this three part is a set of phase change subassembly, for making the utility model discloses the last fixed block 7, the lower fixed block 9 that set up are more steady at the removal in-process, the utility model discloses set up two sets of phase change subassemblies, the distribution mode of two sets of phase change subassemblies is shown as figure 4. Meanwhile, in order to facilitate that the movement of the first rack 13 and the second rack 15 is not limited, a lower insertion hole (not shown) which is inserted and matched with the first rack 13 may be provided on the lower fixing block 9, and an upper insertion hole (not shown) which is inserted and matched with the second rack 15 may be provided on the upper fixing block 7.

Two grip blocks 4 carry out the centre gripping to the lens 16 of placing on the bottom sprag portion 11 under the effect of centre gripping cylinder 1, a plurality of clamping parts 10 that correspond this moment and the peripheral contact of lens 16, then start and drive actuating cylinder 6, drive actuating cylinder 6 work and drive fixed block 7 downstream, go up fixed block 7 downstream and drive fixed block 9 upward movement under the effect of drive gear 14, first rack 13, second rack 15 for a plurality of movable rods 82 are fixed between corresponding last centre gripping groove 71 and lower centre gripping groove 91.

The utility model discloses the picture is shown and will be driven actuating cylinder 6 and last fixed block 7 fixed outside, can also will drive actuating cylinder 6 and fixed block 9 down, and at this moment, fixed establishment's fixed principle to a plurality of movable rods 82: the driving cylinder 6 works to drive the lower fixing block 9 to move upwards, the lower fixing block 9 moves upwards to drive the upper fixing block 7 to move downwards under the action of the driving gear 14, the first rack 13 and the second rack 15, and therefore the movable rods 82 are fixed between the corresponding upper clamping grooves 71 and the corresponding lower clamping grooves 91. The plurality of movable rods 82 are locked to ensure a secure grip of the entire fixture on the lens 16, and then the fixed lens 16 is subjected to a grinding operation.

As shown in fig. 2, 3 and 5, because the circumference radian of different lenses 16 is different, in order to make every clamping part 10 contact with lens 16 circumference as much as possible, the utility model discloses will clamping part 10 and movable rod 82 swing joint, grip block 4 is put on the shelf and is equipped with pivot 84, be equipped with the adapter sleeve 101 of being connected with pivot 84 rotation on the clamping part 10 the cover is equipped with torsional spring 83 on the pivot 84, a support arm of torsional spring 83 contacts with clamping part 10, another support arm of torsional spring 83 contacts with grip block 4. The pivot pin 84 is disposed through a mounting slot 85 provided at the free end of the movable lever 82, and the torsion spring 83 is disposed in the mounting slot 85. When the clamping portion 10 contacts the lenses 16 with different diameters, the clamping portion 10 rotates relative to the movable rod 82, so that the clamping portion 10 can have a larger contact area to contact with the lens 16 circumferentially, the contact area between the clamping portion 10 and the lens 16 is larger, and when the lens 16 is disassembled, the clamping portion 10 can be restored to the initial state under the action of the torsion spring 83, so as to clamp the lens 16 with the subsequent size not used. The utility model discloses set up rubber slipmat 102 in the centre gripping side of clamping part 10, increase the frictional force between clamping part 10 and the lens 16, rubber slipmat 102 can also discover deformation simultaneously, increases the area of contact of the centre gripping side of clamping part 10 and lens 16, ensures the effective connection of clamping part 10 and lens 16.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (8)

1. The utility model provides an optical lens anchor clamps, is including two grip blocks that are used for the centre gripping lens and be used for driving two grip blocks motion or the actuating mechanism of motion of leaving mutually, its characterized in that: each clamping block is provided with a size adjusting mechanism,

the size adjusting mechanism comprises a plurality of clamping parts which are uniformly distributed along the clamping side of the clamping block, each clamping part is elastically connected with the clamping block in a sliding way,

when the multi-point lens clamping device is used, the plurality of clamping parts are in contact with the lens or are partially in contact with the lens to be used for multi-point clamping of the lens, and the plurality of clamping parts clamp the lens and are fixed with the clamping blocks through the fixing mechanism.

2. An optical lens holder as claimed in claim 1, wherein: the two clamping blocks are arranged on the base, two sliding grooves are formed in the base, the two clamping blocks are respectively matched with the two sliding grooves for use, and sliding blocks in sliding fit with the sliding grooves are respectively arranged on the two clamping blocks.

3. An optical lens holder as claimed in claim 2, wherein: the driving mechanism comprises two oppositely arranged clamping cylinders, the two clamping cylinders are fixed with the base, and piston rods of the two clamping cylinders are fixed with the two clamping blocks respectively.

4. An optical lens holder as claimed in claim 3, wherein: the plurality of clamping parts are horizontally arranged side by side, each clamping part is connected with the clamping block through a spring telescopic rod,

the spring telescopic rod comprises a fixed rod and a movable rod which are sleeved and connected and a telescopic spring arranged between the fixed rod and the movable rod, wherein the fixed rod is fixed with the clamping block, and the movable rod is connected with the clamping part.

5. An optical lens holder as claimed in claim 4, wherein: the fixing mechanism is used for fixing the movable rod,

the fixing mechanism comprises an upper fixing block, a lower fixing block and a lifting component for driving the upper fixing block and the lower fixing block to move oppositely, the upper fixing block and the lower fixing block are both connected with the clamping block in a sliding manner,

a plurality of upper clamping grooves with the number equivalent to that of the plurality of movable rods are arranged on the upper fixed block, a plurality of lower clamping grooves with the number equivalent to that of the plurality of movable rods are arranged on the lower fixed block,

each movable rod is fixed between the corresponding upper clamping groove and the corresponding lower clamping groove.

6. An optical lens holder as claimed in claim 5, wherein: the lifting component comprises a driving cylinder, a driving gear, a first rack and a second rack which are meshed with the driving gear and are arranged in parallel,

the first rack is fixed with the upper fixing block, the second rack is fixed with the lower fixing block, the driving cylinder is fixed with the clamping block, and a piston rod of the driving cylinder is fixed with the upper fixing block or the lower fixing block.

7. An optical lens holder as claimed in claim 4, wherein: the clamping part is movably connected with the movable rod,

the clamping block is erected with a shaft pin, the clamping part is provided with a connecting sleeve which is connected with the shaft pin in a rotating mode, the shaft pin is sleeved with a torsion spring, one support arm of the torsion spring is in contact with the clamping part, and the other support arm of the torsion spring is in contact with the clamping block.

8. An optical lens holder as claimed in any one of claims 2 to 7, wherein: a bottom supporting part is fixed on the base, and a concave groove matched with the lens for use is formed in the top of the bottom supporting part.

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