CN212351448U - Convex surface fine grinding clamp for objective lens of telescope - Google Patents

Convex surface fine grinding clamp for objective lens of telescope Download PDF

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Publication number
CN212351448U
CN212351448U CN202020779943.XU CN202020779943U CN212351448U CN 212351448 U CN212351448 U CN 212351448U CN 202020779943 U CN202020779943 U CN 202020779943U CN 212351448 U CN212351448 U CN 212351448U
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CN
China
Prior art keywords
anchor clamps
seat
clamp
lens
objective lens
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Expired - Fee Related
Application number
CN202020779943.XU
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Chinese (zh)
Inventor
孙小兵
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Chongqing Yijia Optical Instrument Co Ltd
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Chongqing Yijia Optical Instrument Co Ltd
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Priority to CN202020779943.XU priority Critical patent/CN212351448U/en
Application granted granted Critical
Publication of CN212351448U publication Critical patent/CN212351448U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a telescope objective lens convex surface correct grinding fixture, including setting up the anchor clamps frame above the head of polishing and can dismantle the anchor clamps pole of connection on the anchor clamps frame, anchor clamps pole bottom is provided with the anchor clamps seat, anchor clamps seat bottom all is provided with 2-4 centre gripping hands, the centre gripping hand clamping part encloses into the mounting groove that holds the lens, anchor clamps seat bottom surface is provided with the T type spout that holds the slip of centre gripping hand, be provided with the arc wall on the arc outside lateral wall of centre gripping hand, be provided with the spring of cramping in the arc wall; the utility model discloses a 2-4 centre gripping hands fix the lens at the anchor clamps seat, and the spring cramps is passed through in the centre gripping hand outside, avoids the lens to appear circumferential displacement at the correct grinding in-process, improves the lens correct grinding precision.

Description

Convex surface fine grinding clamp for objective lens of telescope
Technical Field
The utility model belongs to an optical workpiece, like the technical field of lens, prism, concretely relates to telescope objective lens convex surface correct grinding anchor clamps.
Background
The telescope lens mainly refers to a lens manufactured by optical glass, the optical glass can change the transmission direction of light and can change the relative spectral distribution of ultraviolet, visible or infrared light, and the optical glass can be used for manufacturing lenses, prisms, reflectors, windows and the like in optical instruments; heating and forging the qualified optical glass to form an optical lens blank; the blank of optical lens piece needs to carry out the process coarse grinding in proper order, the correct grinding, the polishing, the edging, wash, annotate the membrane, veneer and finished product detection and processing, at the correct grinding objective lens piece in-process, adopt diamond bistrique rigidity and carry out rotary work, the fixed lens of correct grinding anchor clamps installation, the protruding surface edge slope of coarse grinding after making the lens process leans on in diamond bistrique surface, current lens anchor clamps lead to the lens circumference to beat than great at the correct grinding in-process, lead to machining efficiency and machining precision to hang down.
Disclosure of Invention
In view of this, in order to overcome the above-mentioned defect of prior art, the utility model aims at providing a telescope objective lens convex surface correct grinding anchor clamps, this telescope objective lens convex surface correct grinding anchor clamps pass through 2-4 centre gripping hands and fix the lens at the anchor clamps seat, and the spring cramps is passed through in the centre gripping hand outside, avoids the lens to appear circumferential displacement at the correct grinding in-process, improves the lens correct grinding precision.
In order to achieve the purpose, the utility model provides a telescope objective lens convex surface correct grinding anchor clamps, including setting up at the anchor clamps frame of head of polishing top and can dismantle the anchor clamps pole of connection on the anchor clamps frame, anchor clamps pole bottom is provided with the anchor clamps seat, anchor clamps seat bottom all is provided with 2-4 centre gripping hands, the centre gripping hand clamping part encloses into the mounting groove that holds the lens, anchor clamps seat bottom surface is provided with and holds the gliding T type spout of centre gripping hand, be provided with the arc wall on the arc outside lateral wall of centre gripping hand, be provided with in the arc wall and cramp the spring.
Furthermore, a spring connecting column is arranged in the middle of the adjacent clamping hands on the clamp seat, and two ends of the hooping spring are fixedly connected to the spring connecting column.
Further, be provided with the ball-type joint on the anchor clamps pole, anchor clamps seat upper surface center department is provided with the ball-type groove that holds the ball-type joint, and the ball-type groove bottom is provided with the through-hole that the anchor clamps pole passed, anchor clamps pole bottom is connected with fixes its nut on the anchor clamps seat, it is equipped with slide mechanism to lie in on the anchor clamps pole between anchor clamps seat lower surface and the nut.
Further, slide mechanism includes the clamp plate with the laminating of anchor clamps seat lower surface, the apron of being connected with the nut butt joint and the spring of setting between clamp plate and backup plate, it has the ball annular to enclose between clamp plate and the anchor clamps seat, be provided with a set of ball in the ball annular.
Furthermore, a plurality of guide posts are arranged between the pressing plate and the cover plate and are uniformly distributed around the clamp rod.
Further, the spring is sleeved on the guide post.
Further, the spring is sleeved on the clamp rod, and grooves for accommodating the spring are formed in the lower surface of the pressing plate and the upper surface of the cover plate.
Further, the height of the mounting groove is smaller than the width of the lens.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses telescope objective lens convex surface correct grinding anchor clamps pass through 2-4 centre gripping hands and fix the lens at the anchor clamps seat, and the centre gripping hand outside is cramped through the spring, avoids the lens to appear circumferential movement in the correct grinding process, improves lens correct grinding precision;
the utility model discloses telescope objective lens convex surface correct grinding anchor clamps all are provided with the sliding construction who is connected with the anchor clamps pole on through with anchor clamps seat upper and lower surface, make the lens on the anchor clamps seat polish along with the diamond bistrique at the correct grinding in-process and rotate, reduce the frictional force between anchor clamps seat and the anchor clamps pole, reduce anchor clamps seat radius circle and beat, improve the lens correct grinding precision.
Drawings
In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:
FIG. 1 is a schematic structural view of a convex surface fine grinding fixture for a telescope objective lens of the present invention;
FIG. 2 is a schematic structural view of a fixture seat in the convex surface fine grinding fixture for the objective lens of the telescope of the present invention;
figure 3 is the utility model discloses anchor clamps seat elevation view in the fine grinding anchor clamps of telescope objective lens convex surface.
Reference numerals: 1-a diamond grinding head; 2-a clamp frame; 3-a clamp rod; 4-a clamp seat; 5-mounting grooves; 6-a lens; 7-ball joints; 8-a nut; 9-T type chute; 10-clamping the hand; 11-a platen; 12-a ball bearing; 13-a cover plate; 14-a spring; 15-a guide post; 16-a tension spring; 17-boss; 18-spring connection post.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1-3 are schematic structural views of the convex surface fine grinding clamp for the objective lens of the telescope according to the present invention; the utility model relates to a telescope objective lens convex surface correct grinding anchor clamps, including setting up anchor clamps frame 2 and the detachable connection anchor clamps pole 3 on anchor clamps frame 2 above the head of polishing, 3 bottoms of anchor clamps poles are provided with anchor clamps seat 4, 4 bottoms of anchor clamps seat all are provided with 2-4 centre gripping hand 10, 10 clamping parts of centre gripping hand enclose into the mounting groove 5 that holds the lens, 4 bottom surfaces of anchor clamps seat are provided with and hold gliding T type spout 9 of centre gripping hand, be provided with the arc wall on the 10 arc outside lateral walls of centre gripping hand, be provided with in the arc wall and cramp spring 16.
This embodiment is through being provided with 2-4 piece centre gripping hands 10 in 4 bottoms of anchor clamps seat, through the slip of centre gripping hand 10, fixes lens 6 in anchor clamps seat bottom, when carrying out the correct grinding, the head of polishing adopts diamond bistrique 1, utilizes diamond bistrique 1 self rotation, and the lens on anchor clamps seat and the anchor clamps seat of anchor clamps pole drive is close to diamond bistrique 1, and the centre gripping hand 10 outside is cramped through the spring, avoids the lens to appear circumferential movement at the correct grinding in-process, improves the lens correct grinding precision.
The preferred embodiment, the department is provided with the spring coupling post 18 in the middle of lieing in adjacent centre gripping hand 10 on the anchor clamps seat 4, cramp 16 both ends fixed connection of spring at the spring coupling post 18, this structure of this embodiment is favorable to the fixed spring both sides, makes things convenient for the spring to cramp and cramp to centre gripping hand 10, makes things convenient for centre gripping hand 10 lens to carry out the centre gripping.
In a preferable embodiment, the fixture rod 3 is provided with a spherical joint 7, the center of the upper surface of the fixture seat 4 is provided with a spherical groove for accommodating the spherical joint 7, the bottom of the spherical groove is provided with a through hole through which the fixture rod 3 passes, the bottom of the fixture rod 3 is connected with a nut 8 for fixing the fixture rod on the fixture seat, a sliding mechanism is sleeved between the lower surface of the fixture seat 2 and the nut 8 on the fixture rod 3, in the fine grinding process of the embodiment, the grinding head adopts a diamond grinding head 1, the diamond grinding head 1 rotates by itself, the fixture rod drives lenses on the fixture seat and the fixture seat to be close to the diamond grinding head 1, the upper surface and the lower surface of the fixture seat are both provided with sliding structures connected with the fixture rod, so that the lenses on the fixture seat rotate along with the grinding rotation of the diamond grinding head in the fine grinding process, the fixture rod is in a static, the radial circular run-out of the clamp seat is reduced, and the precision of the fine grinding of the lens is improved.
The preferred embodiment, slide mechanism include the clamp plate 11 with the laminating of 4 lower surfaces of anchor clamps seat, with 8 butts the apron 13 of being connected of nut and the spring 14 of setting between clamp plate 11 and backup plate 13 in this embodiment, it has the ball annular to enclose between clamp plate 11 and the anchor clamps seat 4, be provided with a set of ball 12 in the ball annular, this embodiment is fixed clamp plate 11, spring 14 and apron 13 in 4 bottoms of anchor clamps seat through threaded connection between nut 8 and the anchor clamps pole bottom, carries out relative roll through ball 12 between clamp plate 11 and the anchor clamps seat 4, is in quiescent condition at the anchor clamps pole, makes things convenient for anchor clamps seat 4 to carry out rotatory polishing after the rotation of diamond grinding head 1, improves the machining precision.
The preferred implementation structure, department outwards extends around the lower surface of anchor clamps seat 4 has convex seat 17, T type spout 9 sets up in convex seat 17, and convex seat 17 edge detachable connection has the installation lid, conveniently advances the centre gripping hand through the installation lid and installs in convex seat 17.
The preferred implementation structure, be provided with a plurality of guide posts 15 between clamp plate 11 and the apron 13, guide posts 15 equipartition is around anchor clamps pole 3, and this embodiment is through being provided with guide posts 15 between clamp plate 11 and apron 13, when avoiding anchor clamps seat 4 to rotate and polish along with diamond grinding head 1 rotation back, leads to carrying out the dislocation between clamp plate 11 and the apron 13, reaches to reduce anchor clamps seat radial circle and beats, improves the lens accurate grinding precision.
The preferred structure of implementing, spring 14 suit is on guide post 15, and this embodiment can also adopt spring 14 suit is on anchor clamps pole 3, clamp plate lower surface and apron upper surface are provided with the recess that holds the spring, through being provided with spring 14 device, are favorable to controlling the frictional force between ball and the anchor clamps seat, cushion the counter force of polishing through the spring, and the counter force is too big when avoiding polishing influences the frictional force between ball and the anchor clamps seat, reaches and reduces anchor clamps seat radial circle and beats, improves the lens accurate grinding precision.
The optimized implementation structure has the advantages that the height of the mounting groove is smaller than the thickness of the lens 6, the bottom of the lens 6 is favorable for processing the concave surface of the lens by the aid of the structure, processing efficiency is improved, and interference of the edge of the clamp seat on lens processing is avoided.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims (8)

1. The utility model provides a telescope objective lens convex surface correct grinding anchor clamps, is including setting up the anchor clamps frame in the head top of polishing and can dismantle the anchor clamps pole of connection on anchor clamps frame, anchor clamps pole bottom is provided with anchor clamps seat, its characterized in that: the fixture comprises a fixture seat and is characterized in that 2-4 clamping hands are arranged at the bottom of the fixture seat, a mounting groove for accommodating a lens is formed by surrounding clamping parts of the clamping hands, a T-shaped sliding groove for accommodating the clamping hands to slide is formed in the surface of the bottom of the fixture seat, an arc-shaped groove is formed in the arc-shaped outer side wall of each clamping hand, and a tightening spring is arranged in the arc-shaped groove.
2. The convex surface finish-grinding jig for the objective lens of a telescope according to claim 1, wherein: the clamp seat is provided with a spring connecting column in the middle of the adjacent clamping hands, and two ends of the hooping spring are fixedly connected to the spring connecting column.
3. The convex surface finish-grinding jig for a telescope objective lens according to claim 1 or 2, wherein: the clamp is characterized in that the clamp rod is provided with a ball-shaped joint, the center of the upper surface of the clamp seat is provided with a ball-shaped groove for accommodating the ball-shaped joint, the bottom of the ball-shaped groove is provided with a through hole through which the clamp rod penetrates, the bottom of the clamp rod is connected with a nut for fixing the clamp rod on the clamp seat, and a sliding mechanism is sleeved between the lower surface of the clamp seat and the nut on the clamp rod.
4. The convex surface finish-grinding jig for the objective lens of a telescope according to claim 3, wherein: slide mechanism includes the clamp plate with the laminating of anchor clamps seat lower surface, the apron of being connected with the nut butt joint and the spring of setting between clamp plate and backup plate, it has the ball annular to enclose between clamp plate and the anchor clamps seat, be provided with a set of ball in the ball annular.
5. The convex surface finish-grinding jig for the objective lens of a telescope according to claim 4, wherein: a plurality of guide posts are arranged between the pressing plate and the cover plate and are uniformly distributed around the clamp rod.
6. The convex surface finish-grinding jig for the objective lens of a telescope according to claim 5, wherein: the spring is sleeved on the guide post.
7. The convex surface finish-grinding jig for the objective lens of a telescope according to claim 4, wherein: the spring is sleeved on the clamp rod, and grooves for containing the springs are formed in the lower surface of the pressing plate and the upper surface of the cover plate.
8. The convex surface finish-grinding jig for the objective lens of a telescope according to claim 3, wherein: the height of the mounting groove is smaller than the width of the lens.
CN202020779943.XU 2020-05-13 2020-05-13 Convex surface fine grinding clamp for objective lens of telescope Expired - Fee Related CN212351448U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020779943.XU CN212351448U (en) 2020-05-13 2020-05-13 Convex surface fine grinding clamp for objective lens of telescope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020779943.XU CN212351448U (en) 2020-05-13 2020-05-13 Convex surface fine grinding clamp for objective lens of telescope

Publications (1)

Publication Number Publication Date
CN212351448U true CN212351448U (en) 2021-01-15

Family

ID=74136499

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020779943.XU Expired - Fee Related CN212351448U (en) 2020-05-13 2020-05-13 Convex surface fine grinding clamp for objective lens of telescope

Country Status (1)

Country Link
CN (1) CN212351448U (en)

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Granted publication date: 20210115