CN213917488U

CN213917488U - Clamp for lens milling and grinding machine

Info

Publication number: CN213917488U
Application number: CN202022368703.3U
Authority: CN
Inventors: 张贵生; 王桂利
Original assignee: Tianjin Guangpu Optical Apparatus Co ltd
Current assignee: Tianjin Guangpu Optical Apparatus Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-08-10
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses a lens milling and grinding machine fixture, which comprises a lens seat and an outer sleeve body, wherein the top part of the lens seat is provided with a raised groove, the upper part of the lens seat is provided with a crossed cutting seam, the raised groove is externally connected with a positioning piece, the positioning piece is fixedly connected with a rack which passes through the lens seat, the rack is meshed with a connecting gear, and a rotating shaft of the connecting gear is rotatably connected with a first connecting piece fixed on the lens seat; the rack bottom is connected with the roller in a rolling manner, the roller is movably connected to the support fixed on the support plate, the support plate is fixed on the lens seat, the bottom of the support plate is provided with a sliding groove, a sliding block is connected in the sliding groove in a sliding manner, the sliding block is fixedly connected with an elastic limiting body through a limiting supporting rod, a first groove matched with the bottom of the lens seat is formed in the outer sleeve body, a first fixing rod is arranged outside the outer sleeve body, and a first annular limiting groove matched with the elastic limiting body is formed in the first fixing rod. The utility model discloses can the lens of the different specifications of centre gripping, the suitability is high, simple structure, running cost low, practical convenient.

Description

Clamp for lens milling and grinding machine

Technical Field

The utility model belongs to the technical field of lens milling machine clamping tool, concretely relates to lens milling machine anchor clamps.

Background

The lens milling and grinding machine drives a grinding wheel coaxially connected with a motor to rotate through the motor, and the grinding wheel mills and grinds the surface of an optical lens, so that the lens is milled and ground into various shapes, the lens processing precision directly influences the lens imaging effect, and the lens processing can be finished by means of an auxiliary clamp. The utility model discloses a utility model CN208880383U discloses a milling and grinding machine for optical lens, which comprises a milling and grinding machine body and a clamp body, wherein the clamp body is fixedly arranged on the milling and grinding machine body and is a step-shaped cylinder, the clamp body comprises a lens seat, an outer sleeve body, a traction rod, a fixed seat, a positioning device, a first limiting device and a second limiting device, the lens seat can be accommodated in the outer sleeve body, a raised groove is arranged at the top of the lens seat, the upper part of the lens seat is provided with crossed cutting seams, the bottom end of the lens seat is fixedly connected with the fixed seat, an internal thread is arranged in the fixed seat, the optical lens milling and grinding machine enables the clamp body to clamp lenses with different specifications through the positioning device and the first limiting device, the applicability of the optical lens milling and grinding machine is greatly improved, the lens seat is limited through the second limiting device, and the rotation of the lens seat in the lens processing process can be effectively prevented, the machining precision is prevented from being influenced. But the utility model provides an anchor clamps need manual operation to carry out the centre gripping to the lens, and convenient to use nature needs further improvement, consequently how to provide a lens milling and grinding machine anchor clamps, not only can the lens of the different specifications of centre gripping, and the suitability is high, still simple structure, running cost are low, practical convenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lens mills for grinding machine anchor clamps to solve the problem that proposes in the above-mentioned background art, the utility model provides a lens mills for grinding machine anchor clamps not only can the lens of the different specifications of centre gripping, and the suitability is high, still simple structure, running cost low, practical convenient.

In order to achieve the above object, the utility model provides a following technical scheme: a clamp for a lens milling and grinding machine is a stepped cylinder and comprises a lens seat and an outer sleeve, wherein a raised groove is formed in the top of the lens seat, crossed cutting seams are formed in the upper portion of the lens seat, the outer side wall of the raised groove is connected with a positioning piece, the positioning piece is fixedly connected with a rack, the rack penetrates through the lens seat and is meshed with a connecting gear, the gear is connected with a rotating shaft, the rotating shaft is rotatably connected with a first connecting piece, the first connecting piece is fixedly connected with the lens seat, the rotating shaft is connected with a motor through a coupler, and the motor is fixedly connected with the lens seat through a second connecting piece; the lens holder is characterized in that the bottom of the rack is in rolling connection with a roller, the roller is movably connected to a support, the support is fixedly connected to a support plate, the support plate is fixedly connected to the lens holder, a sliding groove is formed in the bottom of the support plate, a sliding block is connected to the sliding groove in a sliding mode, the sliding block is fixedly connected with a limiting supporting rod, the limiting supporting rod is fixedly connected with an elastic limiting body, a first groove is formed in the outer sleeve body, the first groove is matched with the bottom of the lens holder, a first fixing rod is arranged outside the outer sleeve body, a first annular limiting groove is formed in the first fixing rod, and the elastic limiting body is matched with the first annular limiting groove.

Furthermore, a second fixing rod is arranged outside the outer sleeve body, the length of the second fixing rod is larger than that of the first fixing rod, a second annular limiting groove is formed in the second fixing rod, and the second annular limiting groove is matched with the elastic limiting body.

Further, the positioning pieces are circumferentially distributed around the convex groove.

Furthermore, the number of the positioning pieces is 2 or 4, and the positioning pieces are symmetrically arranged.

Furthermore, a second groove is formed in the outer sleeve body, and the second groove is connected with the fixed seat in an internal thread mode.

Furthermore, the bottom of the supporting plate is provided with a first limiting groove, the first limiting groove is communicated with the sliding groove, the sliding block is connected with a spring, the spring is connected with a clamping block, and the clamping block is matched with the first limiting groove.

Further, the bottom of the rack is provided with a second limiting groove, and the second limiting groove is matched with the roller.

Furthermore, a third annular limiting groove is formed in the upper portion of the lens seat, and the width of the third annular limiting groove is equal to the width of the side wall of the top of the outer sleeve.

Furthermore, an elastic pad is arranged in the third annular limiting groove.

Furthermore, the convex part at the center of the convex groove is in a smooth spherical structure shape.

The utility model has the following beneficial effects

1. The utility model provides a pair of lens milling and grinding machine anchor clamps have simple structure, running cost low, practical convenient, the comprehensive advantage of function, and the setting up of pivot, gear, rack, setting element and motor can rely on motor drive when making the centre gripping lens, liberates the hand labor power and raises the efficiency, and convenient to use nature improves. The arrangement of the supporting plate, the roller and the support can increase the moving stability of the rack under the condition of reducing contact friction and the clamping stability when the positioning piece clamps the lens. The setting of slider, spout, spacing groove, spring, fixture block, spacing branch, the spacing body of elasticity and dead lever both reached the purpose of firm centre gripping different specification lenses and reached and carry out spacing purpose to the lens seat, prevent that lens seat level from rotating or longitudinal movement from influencing the machining precision in the lens course of working.

2. The utility model provides a pair of lens mills mill machine anchor clamps, the threaded connection setting of fixing base and outer cover body is convenient for adjust holistic height behind the anchor clamps centre gripping lens, is convenient for by the lens and the grinding apparatus contact of centre gripping, improves the machining precision.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of a clamp for a lens milling and grinding machine according to the present invention;

FIG. 2 is a schematic top view of a fixture for a lens milling and grinding machine according to the present invention;

FIG. 3 is a schematic bottom view of a fixture support plate for a lens milling and grinding machine according to the present invention;

figure 4 is the utility model discloses a lens mills grinding machine anchor clamps limit strut elevation.

Number in the figure: 1. a lens holder; 101. a third annular limiting groove; 2. a raised groove; 3. a positioning member; 4. Cutting a seam; 5. a rotating shaft; 6. a gear; 7. a rack; 701. a second limit groove; 8. a roller; 9. a support; 10. a slider; 11. a support plate; 1101. a chute; 1102. a first limit groove; 12. a limit strut; 13. An elastic limiting body; 14. a first fixing lever; 1401. a first annular limiting groove; 15. a second fixing bar; 1501. A second annular limiting groove; 16. an outer casing; 1601. a first groove; 1602. a second groove; 17. a fixed seat; 18. a spring; 19. a clamping block; 20. an elastic pad; 21. a motor; 22. a first connecting member; 23. a second connecting member.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1-4, a clamp for a lens milling and grinding machine is a stepped cylinder, and comprises a lens base 1 and an outer casing 16, wherein a convex groove 2 is formed at the top of the lens base 1, a cross cutting seam 4 is formed at the upper part of the lens base 1, the outer side wall of the convex groove 2 is connected with a positioning piece 3, the positioning piece 3 is fixedly connected with a rack 7, the rack 7 penetrates through the lens base 1 and is meshed with a connecting gear 6, the gear 6 is connected with a rotating shaft 5, the rotating shaft 5 is rotatably connected with a first connecting piece 22, the first connecting piece 22 is fixedly connected with the lens base 1, the rotating shaft 5 is connected with a motor 21 through a coupler, and the motor 21 is fixedly connected with the lens base 1 through a second connecting piece 23; the bottom of the rack 7 is connected with a roller 8 in a rolling manner, the roller 8 is movably connected onto a support 9, the support 9 is fixedly connected onto a support plate 11, the support plate 11 is fixedly connected onto a lens seat 1, a sliding groove 1101 is formed in the bottom of the support plate 11, a sliding block 10 is slidably connected into the sliding groove 1101, a limiting support rod 12 is fixedly connected with the sliding block 10, a limiting support rod 12 is fixedly connected with an elastic limiting body 13, a first groove 1601 is formed in an outer sleeve 16, the first groove 1601 is matched with the bottom of the lens seat 1, a first fixing rod 14 is arranged outside the outer sleeve 16, a first annular limiting groove 1401 is formed in the first fixing rod 14, and the elastic limiting body 13 is matched with the first annular limiting groove 1401. The elastic stopper 13 may be made of rubber.

Adopt above-mentioned scheme, at first place the lens in protruding recess 2, then starter motor 21 drives pivot 5 and rotates, and pivot 5 drives gear 6 and rotates, and gear 6 orders about rack 7 and removes to the position that is close to the lens for thereby setting element 3 and lens contact carry out the contact positioning to the lens, and the setting of gyro wheel 8 can increase rack 7's mobility stability under the condition that reduces contact friction. Then pull limiting support rod 12 downwards, pull in lens seat 1 to outer casing 16 in, through the shrink of criss-cross cutting seam 4 to the realization is to the stable centre gripping of great lens, connects elasticity spacing body 13 cover to first annular spacing groove 1401 in reaching the purpose of spacing lens seat 1 through sliding limiting support rod 12 at last, prevents that lens seat 1 horizontal rotation in the lens course of working from resulting in that the machining precision receives the influence. The motor 21 is arranged to enable the lens to be clamped by means of motor driving, manual labor force is liberated, efficiency is improved, convenience in use is improved, and the lens clamping device is simple in structure, low in operation cost, practical and convenient.

Further, a second fixing rod 15 is arranged outside the outer casing 16, the length of the second fixing rod 15 is greater than that of the first fixing rod 14, a second annular limiting groove 1501 is formed in the second fixing rod 15, and the elastic limiting body 13 is matched with the second annular limiting groove 1501.

Adopt above-mentioned scheme, set up second dead lever 15, be convenient for when the lens is less, draw in lens seat 1 to the great depths of outer cover 16, shrink through criss-cross cutting gap 4, thereby realize the stable centre gripping to less lens, and the length of second dead lever 15 is greater than the length of first dead lever 14, be convenient for at last through sliding spacing branch 12 with elasticity spacing body 13 cup joint to second annular spacing groove 1501 in reach and carry out spacing purpose to lens seat 1, prevent that lens seat 1 level from rotating in the lens course of working, lead to the machining precision to receive the influence. The arrangement of the limiting support rod 12, the elastic limiting body 13 and the fixing rod enables the fixture to clamp lenses of different specifications, clamping is stable, applicability is high, and operation is simple.

Further, the positioning members 3 are circumferentially distributed around the protrusion recess 2. The positioning piece 3 is convenient for circumferentially clamping the lenses with different specifications, so that the clamping stability is improved.

Further, the number of the positioning pieces 3 is 2 or 4, and the positioning pieces are symmetrically arranged. When the setting of locating piece 3 is 2 of symmetry, carry out the centre gripping with a set of opposite face of lens and can realize the centre gripping to the lens, when the setting of locating piece 3 is 4 of symmetry, carry out the centre gripping with two sets of opposite faces of lens, the centre gripping is more firm.

Further, a second groove 1602 is provided in the outer casing 16, and the second groove 1602 is connected to the fixing seat 17 through an internal thread. After the lens is clamped, the outer sleeve 16 of the clamp is fixed on the fixing seat 17 in a threaded connection mode, the overall height of the clamp after the lens is clamped is conveniently adjusted according to the specification of the lens through the threaded connection, the clamped lens is conveniently contacted with a grinding tool, and machining precision is improved.

Further, the bottom of the supporting plate 11 is provided with a first limiting groove 1102, the first limiting groove 1102 is communicated with the sliding groove 1101, the slider 10 is connected with a spring 18, the spring 18 is connected with a clamping block 19, and the clamping block 19 is matched with the first limiting groove 1102. The arrangement of the first limit groove 1102, the spring 18 and the fixture block 19 facilitates the position of the slide block 10 to be limited, so that the position of the limit support rod 12 is fixed, and the lens seat 1 is prevented from moving longitudinally in the lens processing process, thereby preventing the processing precision from being affected.

Further, the bottom of the rack 7 is provided with a second limiting groove 701, and the second limiting groove 701 is matched with the roller 8. The second limit groove 701 is arranged to limit the position of the rack 7 to move, and the locating pieces 3 are prevented from being damaged by contact.

Furthermore, a third annular limiting groove 20 is formed in the upper portion of the lens holder 1, the width of the third annular limiting groove 20 is equal to the width of the top side wall of the outer casing 16, and an elastic pad 24 is arranged in the third annular limiting groove 20. When the lens holder 1 is drawn into the outer sleeve 16 and the elastic pad 24 contacts with the outer sleeve 16, the third annular limiting groove 20 and the elastic pad 24 are arranged to prevent the lens holder 1 from vibrating during processing, thereby affecting the processing precision of the lens.

Furthermore, the convex part at the center of the convex groove 2 is in a smooth spherical structure shape, so that the clamp can well clamp the lens in the spherical structure shape, the applicability of the clamp is improved, and the function of the clamp is comprehensive.

The working principle is as follows: at first place the lens in protruding recess 2, then starter motor 21 drives pivot 5 and rotates, and pivot 5 drives gear 6 and rotates, and gear 6 orders about rack 7 to the position removal that is close to the lens for thereby setting element 3 and lens contact carry out the contact location to the lens. Then pulling the limiting support rod 12 downwards, in the process of pulling the limiting support rod 12 downwards, when the lens is large, the sliding block 10 connected with the upper part of the limiting support rod 12 is pushed to one end of the sliding groove 1101, which is closest to the lens seat 1, through the sliding limiting support rod 12, the spring 18 and the fixture block 19 connected with the sliding block 10 are placed in the first limiting groove 1102, the elastic limiting body 13 connected with the lower part of the sliding limiting support rod 12 is sleeved in the first annular limiting groove on the first fixing rod 1401, finally the lens seat 1 is pulled into the outer sleeve body 16, and the lens seat 1 is contracted through the crossed cutting seam 4, so that the large lens is stably clamped; when the lens is small, the sliding block 10 connected with the upper part of the limiting support rod 12 is pushed to the middle part of the sliding groove 1101 by sliding the limiting support rod 12, the spring 18 and the clamping block 19 connected with the sliding block 10 are arranged in the first limiting groove 1102, the elastic limiting body 13 connected with the lower part of the sliding limiting support rod 12 is sleeved in the second annular limiting groove 1501 on the second fixing rod 15, and finally the lens seat 1 is pulled to the deeper part of the outer sleeve 16 and is contracted through the crossed cutting seam 4, so that the stable clamping of the small lens is realized; the slide block 10, the slide groove 1101, the limiting groove, the spring 18, the fixture block 19, the limiting support rod 12, the elastic limiting body 13 and the fixing rod are arranged to achieve the purposes of stably clamping lenses of different specifications and limiting the lens seat 1, and the lens seat 1 is prevented from horizontally rotating or longitudinally moving to influence the processing precision in the lens processing process. Finally, the overall height of the clamp after the lens is clamped is adjusted by adjusting the length of the threaded connection between the fixed seat 17 and the outer sleeve 16 according to the specification of the lens, so that the clamped lens is conveniently contacted with a grinding tool, and the processing precision is improved.

To sum up, the lens milling and grinding machine anchor clamps that this embodiment provided have simple structure, running cost is low, practical convenient, the comprehensive advantage of function, and pivot 5, gear 6, rack 7, setting element 3 and motor 21 set up and can rely on motor drive when making the centre gripping lens, liberation hand labor power and raise the efficiency, and convenient to use improves. The arrangement of the supporting plate 11, the roller 8 and the bracket 9 can increase the moving stability of the rack 7 and the clamping stability of the positioning piece 3 when clamping the lens under the condition of reducing contact friction. The slide block 10, the slide groove 1101, the limiting groove, the spring 18, the fixture block 19, the limiting support rod 12, the elastic limiting body 13 and the fixing rod are arranged to achieve the purposes of stably clamping lenses of different specifications and limiting the lens seat 1, and the lens seat 1 is prevented from horizontally rotating or longitudinally moving to influence the processing precision in the lens processing process. The threaded connection of the fixed seat 17 and the outer sleeve 16 is convenient for adjusting the overall height of the clamp after clamping the lens, so that the clamped lens is convenient to contact with a grinding tool, and the processing precision is improved.

It should be finally noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the present invention can still be modified or replaced with equivalents, and these modifications or equivalent replacements cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clamp for a lens milling and grinding machine is a step-shaped cylinder and comprises a lens seat (1) and an outer sleeve body (16), the top of the lens seat (1) is provided with a raised groove (2), the upper part of the lens seat (1) is provided with a crossed cutting seam (4), it is characterized in that the outer side wall of the convex groove (2) is connected with a positioning piece (3), the positioning piece (3) is fixedly connected with a rack (7), the rack (7) penetrates through the lens seat (1) to be meshed with a connecting gear (6), the gear (6) is connected with a rotating shaft (5), the rotating shaft (5) is rotationally connected with a first connecting piece (22), the first connecting piece (22) is fixedly connected with the lens seat (1), the rotating shaft (5) is connected with the motor (21) through a coupler, the motor (21) is fixedly connected with the lens seat (1) through a second connecting piece (23); the bottom of the rack (7) is connected with a roller (8) in a rolling way, the roller (8) is movably connected on a bracket (9), the bracket (9) is fixedly connected on a supporting plate (11), the supporting plate (11) is fixedly connected on the lens seat (1), the bottom of the supporting plate (11) is provided with a sliding groove (1101), a sliding block (10) is connected in the sliding groove (1101) in a sliding manner, the slide block (10) is fixedly connected with a limit support rod (12), the limit support rod (12) is fixedly connected with an elastic limit body (13), a first groove (1601) is arranged in the outer sleeve body (16), the first groove (1601) is matched with the bottom of the lens seat (1), a first fixing rod (14) is arranged outside the outer sleeve body (16), a first annular limiting groove (1401) is arranged on the first fixing rod (14), the elastic limiting body (13) is matched with the first annular limiting groove (1401).

2. The clamp for the lens milling and grinding machine according to claim 1, wherein a second fixing rod (15) is arranged outside the outer casing (16), the length of the second fixing rod (15) is greater than that of the first fixing rod (14), a second annular limiting groove (1501) is arranged on the second fixing rod (15), and the second annular limiting groove (1501) is matched with the elastic limiting body (13).

3. A clamp for a lens milling and grinding machine according to claim 1, characterized in that said positioning elements (3) are circumferentially distributed around said raised groove (2).

4. The clamp for a lens milling and grinding machine according to claim 1, characterized in that the number of the positioning members (3) is 2 or 4, and the positioning members are symmetrically arranged.

5. A clamp for a lens milling and grinding machine according to claim 1, characterized in that a second groove (1602) is provided in the outer sleeve (16), the second groove (1602) being in threaded connection with the holder (17).

6. The fixture for the lens milling and grinding machine according to claim 1, wherein a first limiting groove (1102) is formed in the bottom of the supporting plate (11), the first limiting groove (1102) is communicated with the sliding groove (1101), a spring (18) is connected to the sliding block (10), the spring (18) is connected to a clamping block (19), and the clamping block (19) is matched with the first limiting groove (1102).

7. The clamp for a lens milling and grinding machine according to claim 1, characterized in that a second limit groove (701) is provided at the bottom of the rack (7), and the second limit groove (701) is adapted to the roller (8).

8. The lens milling and grinding machine fixture as claimed in claim 1, wherein a third annular limiting groove (20) is formed in the upper portion of the lens holder (1), and the width of the third annular limiting groove (20) is equal to the width of the top side wall of the outer sleeve (16).

9. The clamp for a lens milling and grinding machine according to claim 8, characterized in that an elastic pad (24) is arranged in the third annular limiting groove (20).

10. A lens milling and grinding machine clamp according to claim 1, characterized in that the central convex part of the convex groove (2) is in the shape of a smooth spherical structure.