Adjustable clamping and positioning device for optical lens processing

Abstract

The application relates to the technical field of lens clamps, in particular to an adjustable clamping and positioning device for optical lens processing, which comprises a base, a bidirectional driving element is arranged in the middle of the base; the adjustable clamping and positioning device for optical lens processing further comprises a moving unit, two moving units are symmetrically arranged and connected with two ends of the bidirectional driving element respectively. The flexible clamping of the clamping part is realized by the cooperation of an air bag, multiple clamping rods and a rubber plate, multi-directional wrapping clamping of the optical lens is realized, the contact area is large, the phenomenon of local stress concentration is avoided, the problems of lens edge cracking and scratches caused by uncontrollable driving force of the traditional flexible clamping are effectively prevented, and the integrity of the optical lens before processing is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lens clamps, in particular to an adjustable clamping and positioning device for optical lens processing. BACKGROUND

[0002] As a precision optical element, optical lenses are widely used in cameras, microscopes, and lithography machines, etc. The processing of optical lenses requires high precision, stability, and protection. The lens must not be displaced during processing, and the lens surface must not be scratched or the edge must not be cracked due to excessive clamping force or improper contact.

[0003] The existing clamping and positioning device for optical lens processing can meet the basic clamping requirements, but there are still the following technical problems to be solved in practical application: the existing clamping and positioning device is mostly spring-driven, and the spring force and driving force are uncontrollable, which can easily cause the edge of the optical lens to crack due to excessive clamping force or the lens to shake during processing due to insufficient clamping force; some clamping devices use inflatable flexible clamping devices, which can avoid damage to the optical lens during initial clamping, but cannot achieve rigid clamping of the optical lens. Some clamping devices only have single flexible or rigid clamping function, and need to be fixed again by additional tooling. The flexible clamping and rigid clamping cannot be converted, the structure is complex, and the angle adjustment device needs to be assisted additionally, which is complicated.

[0004] Therefore, it is necessary to provide a clamping and positioning device that can convert the optical lens from flexible clamping to rigid clamping and simultaneously adjust the angle. SUMMARY

[0005] Therefore, it is necessary to provide a clamping and positioning device that can convert the optical lens from flexible clamping to rigid clamping and simultaneously adjust the angle.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: an adjustable clamping and positioning device for optical lens processing, comprising: a base, a bidirectional driving member is provided in the middle of the base.

[0007] The adjustable clamping and positioning device for optical lens processing further comprises a moving unit, the moving unit is symmetrically provided with two and connected with two ends of the bidirectional driving member respectively.

[0008] The adjustable clamping and positioning device for optical lens processing further comprises an angle adjusting unit, the angle adjusting unit is arranged on the upper end of the base, and the angle adjusting unit comprises a liftable angle adjusting pushing part.

[0009] The adjustable clamping and positioning device for optical lens processing further comprises a clamping unit arranged between the two moving units, the clamping unit comprising two clamping parts symmetrically connected to the two moving units, a limiting part connected to the clamping parts, and a supporting part connected between the two clamping parts.

[0010] The clamping part comprises a clamping frame detachably connected to the moving unit, an air bag mounted in the clamping frame, a plurality of uniformly distributed clamping rods mounted at the end of the air bag away from the moving unit, the clamping rods slidingly penetrating the frame wall of the clamping frame, and a rubber plate mounted at the end of the plurality of clamping rods away from the air bag.

[0011] The limiting part comprises a limiting plate arranged at the side of the clamping frame away from the moving unit, a plurality of uniformly distributed limiting holes formed in the limiting plate, and a plurality of limiting holes simultaneously connected to the plurality of clamping rod sleeves.

[0012] The air bag expands to drive the plurality of clamping rods and the rubber plate to flexibly clamp the optical lens, the angle adjusting and pushing part pushes the limiting plate, the limiting plate drives the limiting holes to tightly push the moved clamping rods, and the flexible clamping is converted to rigid clamping.

[0013] Preferably, the moving unit comprises a moving plate fixedly connected to the end of the bidirectional driving member, at least one guide rod mounted at the end of the moving plate close to the base, the guide rod slidingly penetrating and cooperating with the base, a rotating rod rotatably connected to the moving plate close to the upper end, a torsional spring arranged at the connection between the rotating rod and the moving plate, a fixed plate mounted at the end of the rotating rod away from the moving plate, and the fixed plate detachably connected to the clamping frame.

[0014] Preferably, the angle adjusting unit further comprises at least one lifting driving member mounted on the base, and a lifting block mounted at the upper end of the lifting driving member.

[0015] Preferably, the angle adjusting and pushing part comprises a support plate mounted on the side wall of the lifting block, a positioning plate mounted on the support plate, an angle adjusting plate slidingly penetrating and connected to the support plate arranged at the front side of the positioning plate, the angle adjusting plate having an L-shaped structure, an adjusting screw threadedly connected to the horizontal segment of the angle adjusting plate, and the adjusting screw rotatably connected to the support plate.

[0016] Preferably, the limiting part further comprises two guide frames symmetrically mounted at the end of the clamping frame away from the rotating rod, the guide frames having an L-shaped structure, the two guide frames simultaneously slidingly connected to the corresponding limiting plates, a lifting plate mounted at the lower end of the limiting plate, and a return spring mounted between the lifting plate and the lower end of the clamping frame.

[0017] Preferably, the supporting part comprises two placing holes respectively formed at the lower side of the two limiting plates, and two placing rods fixedly connected to the clamping frame symmetrically arranged in the placing holes.

[0018] Preferably, the supporting part further comprises a supporting plate arranged between the two placing holes, sliding grooves are arranged at both ends of the supporting plate close to the two placing holes, extension plates are slidably connected in the sliding grooves, one end of the extension plate is fixedly connected with the clamping frame, and a connecting spring is arranged between the other end of the extension plate and the end wall of the sliding groove.

[0019] Preferably, the limiting hole is a waist-shaped hole, and an anti-skid pad is arranged on the bottom wall of the limiting hole.

[0020] Preferably, the air bag is provided with an inflation head, and the inflation head is connected with the top of the clamping frame in a penetrating mode.

[0021] Preferably, the air bag between the plurality of clamping rods is provided with an expansion allowance.

[0022] In summary, the present application has the following beneficial technical effects: 1. The clamping part of the present application adopts flexible clamping of the air bag, the plurality of clamping rods and the rubber plate, realizes multi-directional wrapping clamping of the optical lens, has a large contact area, avoids local stress concentration, effectively prevents the lens edge from cracking and scratching due to uncontrollable driving force in the traditional flexible clamping, and guarantees the integrity of the optical lens before processing.

[0023] 2. The angle adjusting unit cooperates with the clamping unit, can directly convert the flexible clamping of the optical lens into rigid clamping, does not need to dismount and mount the optical lens again, does not need to apply clamping force to the optical lens again, avoids damage of the optical lens due to secondary stress, avoids the phenomenon that the optical lens shakes during processing, and ensures the processing precision of the optical lens.

[0024] 3. The angle adjustment and rigid clamping of the optical lens are realized through the same angle adjusting unit, do not need to additionally install an angle adjusting structure, simplify the operation process, and improve the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the provided drawings.

[0026] Figure 1 The three-dimensional structure schematic diagram of the present application is shown.

[0027] Figure 2 The front view of the present application is shown.

[0028] Figure 3 The left view of the present application is shown.

[0029] Figure 4 It is shown that Figure 3 A-A in the sectional view.

[0030] Figure 5 It is shown that Figure 4 The enlarged view of the B area.

[0031] Figure 6 The structural schematic diagram of the base and the angle adjusting unit of the application is shown.

[0032] Figure 7 The structural schematic diagram of the clamping unit of the application is shown.

[0033] Wherein, the above-mentioned drawings include the following reference signs: 1, base; 2, bidirectional driving member; 3, moving unit; 30, moving plate; 31, guide rod; 32, rotating rod; 33, fixed plate; 4, angle adjusting unit; 40, angle adjusting pushing part; 400, support plate; 401, positioning plate; 402, angle adjusting plate; 403, adjusting screw; 41, lifting driving member; 42, lifting block; 5, clamping unit; 50, clamping part; 500, clamping frame; 501, air bag; 502, clamping rod; 503, rubber plate; 51, limiting part; 510, limiting plate; 511, limiting hole; 512, guide frame; 513, lifting plate; 514, return spring; 52, supporting part; 520, placing hole; 521, placing rod; 522, supporting plate; 523, extension plate; 524, connecting spring. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application are described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the application. However, the application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the application, so the application is not limited by the specific embodiments disclosed below.

[0035] Referring to Figures 1-3 An adjustable clamping and positioning device for optical lens processing includes a base 1, and a bidirectional driving member 2 is arranged in the middle of the base 1.

[0036] In specific work, the base 1 is installed at a processing position through existing fixing equipment, the bidirectional driving member 2 is an existing bidirectional hydraulic push rod, and can also be a bidirectional electric push rod and other driving equipment (not shown in the figure), and the bidirectional driving member 2 is connected with an existing hydraulic pump.

[0037] Referring to Figure 1 and Figure 4The adjustable clamping and positioning device for optical lens processing further comprises two moving units 3 symmetrically arranged and connected with two ends of the bidirectional driving member 2 respectively, the moving unit 3 comprises a moving plate 30 fixedly connected with the end of the bidirectional driving member 2, two guide rods 31 are installed on one end of the moving plate 30 close to the base 1, the guide rods 31 are in sliding fit with the base 1, a rotating rod 32 is rotatably connected on the moving plate 30 close to the upper end, a torsional spring is arranged at the connecting position of the rotating rod 32 and the moving plate 30, and a fixed plate 33 is installed on one end of the rotating rod 32 away from the moving plate 30.

[0038] Referring to Figure 1 and Figure 4 The adjustable clamping and positioning device for optical lens processing further comprises a clamping unit 5 arranged between the two moving units 3, the clamping unit 5 comprises two clamping parts 50 symmetrically connected on the two moving units 3, a limiting part 51 is connected on the clamping part 50, and a supporting part 52 is commonly connected between the two clamping parts 50.

[0039] In specific work, according to the size of the optical lens to be processed, the bidirectional driving member 2 is started, the two moving plates 30 are driven to move by the bidirectional driving member 2, the two guide rods 31 guide and vertically support the moving plate 30, the two moving plates 30 respectively drive the two fixed plates 33 to move through the two rotating rods 32, the two fixed plates 33 drive the two clamping parts 50 to move, so as to change the clamping range between the two clamping parts 50, so as to match the size of the optical lens to be processed, and the torsional spring at the connecting position of the rotating rod 32 and the moving plate 30 ensures that the two clamping parts 50 are in a horizontal state in the initial state, so as to make the supporting part 52 in a horizontal state.

[0040] Referring to Figure 1 , Figure 4 and Figure 7 The clamping part 50 comprises a clamping frame 500 detachably connected with the moving unit 3, the fixed plate 33 is detachably connected with the clamping frame 500, the limiting part 51 comprises a limiting plate 510 arranged on the side of the clamping frame 500 away from the moving unit 3, and the supporting part 52 comprises two placing holes 520 respectively arranged on the two limiting plates 510 close to the lower side, and two placing rods 521 fixedly connected with the clamping frame 500 are symmetrically arranged in the placing hole 520.

[0041] Referring to Figure 1 , Figure 4 and Figure 7 The supporting part 52 further comprises a supporting plate 522 arranged between the two placing holes 520, sliding grooves are arranged on both ends of the supporting plate 522 close to the two placing holes 520, an extension plate 523 is slidably connected in the sliding groove, one end of the extension plate 523 is fixedly connected with the clamping frame 500, and a connecting spring 524 is installed between the other end of the extension plate 523 and the end wall of the sliding groove.

[0042] Specifically, in the process of moving the two fixed plates 33, the two clamping frames 500 drive the two extension plates 523 to move simultaneously, the two extension plates 523 simultaneously pull the connecting springs 524, and the two clamping frames 500 drive the plurality of placement rods 521 to move. When the fixed plate 33 moves to the desired position, the optical lens to be processed is placed on the upper end of the plurality of placement rods 521 and the upper end of the supporting plate 522.

[0043] Referring to Figure 1 , Figure 4 , Figure 5 and Figure 7 , the clamping frame 500 is provided with an air bag 501, a plurality of evenly distributed clamping rods 502 are installed at one end of the air bag 501 away from the moving unit 3, the clamping rods 502 slide through the frame wall of the clamping frame 500, and a rubber plate 503 is installed at the end of the plurality of clamping rods 502 away from the air bag 501. An inflation head is arranged on the air bag 501 and connected with the top of the clamping frame 500, and the air bag 501 between the plurality of clamping rods 502 is provided with an expansion allowance.

[0044] Specifically, before work, the existing inflation pump is fixedly connected with the inflation head on the air bag 501, and after the optical lens to be processed is placed on the upper end of the plurality of placement rods 521, the inflation pump is started to inflate the air bag 501 through the inflation head. The two air bags 501 are inflated and expanded to drive the plurality of clamping rods 502 on both sides of the optical lens to move towards the optical lens, the plurality of clamping rods 502 drive the rubber plate 503 to wrap the optical lens in multiple directions, achieving the function of flexible clamping of the optical lens. The rubber plate 503 effectively increases the contact area between the clamping rod 502 and the optical lens, ensuring the stability of the flexible clamping of the optical lens. The air bag 501 is inflated and expanded to achieve flexible clamping of the optical lens, effectively avoiding the phenomenon that the existing driven flexible clamping exerts excessive clamping force on the optical lens during clamping, resulting in damage to the edge of the optical lens, ensuring the integrity of the optical lens. At the same time, the air bag 501 between the plurality of clamping rods 502 is provided with an expansion allowance, which can ensure that the clamping rods 502 on the side of the optical lens or the clamping rods 502 not in contact with the optical lens can move when the air bag 501 is inflated, i.e. the plurality of clamping rods 502 can form a plane or an arc structure, so as to match the shape of the clamped surface of the optical lens.

[0045] Referring to Figure 1 , Figure 4 and Figure 6The adjustable clamping and positioning device for optical lens processing further comprises an angle adjusting unit 4 arranged at the upper end of the base 1, wherein the angle adjusting unit 4 comprises a liftable angle adjusting push part 40, and further comprises two lifting driving parts 41 arranged on the base 1, and a lifting block 42 is arranged at the upper end of each lifting driving part 41.

[0046] In specific working process, the lifting driving part 41 is an existing hydraulic push rod, or an electric push rod or other driving equipment (not shown in the figure), the lifting driving part 41 is connected with an existing hydraulic pump, and the lifting block 42 is lifted by the lifting driving part 41.

[0047] Referring to Figure 1 , Figure 4 and Figure 6 , the angle adjusting push part 40 comprises a support plate 400 arranged on the side wall of the lifting block 42, a positioning plate 401 is arranged on the support plate 400, an angle adjusting plate 402 is arranged on the front side of the positioning plate 401 in sliding penetration connection with the support plate 400, the angle adjusting plate 402 has an L-shaped structure, an adjusting screw 403 is threadedly connected with the horizontal segment of the angle adjusting plate 402, the adjusting screw 403 is rotationally connected with the support plate 400, and the upper ends of the angle adjusting plate 402 and the positioning plate 401 are provided with arc-shaped protrusions.

[0048] Referring to Figure 1 , Figure 4 , Figure 5 and Figure 7 , a plurality of limiting holes 511 are arranged on the limiting plate 510 in uniform distribution, the plurality of limiting holes 511 are simultaneously connected with the plurality of clamping rods 502 in sleeve connection, the limiting hole 511 is a waist-shaped hole, and an anti-skid pad is arranged on the bottom wall of the limiting hole 511.

[0049] Referring to Figure 1 , Figure 4 , Figure 5 and Figure 7 , the limiting part 51 further comprises two guide frames 512 symmetrically arranged at the end of the clamping frame 500 away from the rotating rod 32, the guide frame 512 has an L-shaped structure, the two guide frames 512 are simultaneously connected with the corresponding limiting plate 510 in sliding connection, a lifting plate 513 is arranged at the lower end of the limiting plate 510, and a return spring 514 is arranged between the lifting plate 513 and the lower end of the clamping frame 500.

[0050] Specifically, when the optical lens is horizontally processed, the upper ends of the angle adjusting plate 402 and the positioning plate 401 are at the same height, the lifting driving part 41 is started, the lifting driving part 41 drives the two supporting plates 400 to move upward through the lifting block 42, the supporting plate 400 is provided with a reinforcing rib at the connection position with the lifting block 42, the supporting plate 400 drives the angle adjusting plate 402 and the positioning plate 401 to move upward and push the lifting plate 513, the lifting plate 513 is pressed to press the reset spring 514 and drive the limiting plate 510 to move upward, the limiting plate 510 drives the plurality of limiting holes 511 to move upward, the plurality of limiting holes 511 are tightly attached to the plurality of clamping rods 502 through the corresponding anti-skid pads, thereby limiting the plurality of clamping rods 502, and the function of converting the flexible clamping of the plurality of clamping rods 502 on the optical lens into rigid clamping is realized, the phenomenon that the optical lens shakes during processing is effectively avoided, the stability of clamping the optical lens is ensured, and the rigid clamping is to tightly position the plurality of clamping rods 502, without the need to clamp and position the optical lens again, thereby avoiding the phenomenon that the optical lens is damaged due to excessive stress.

[0051] When the optical lens is processed in an inclined manner, only the two adjusting screws 403 need to be rotated, the adjusting screws 403 drive the angle adjusting plate 402 to move, the angle adjusting plate 402 is provided with scales, which facilitates the determination of the adjusted angle, after the angle adjusting plate 402 moves downward to the required position, the upper end of the angle adjusting plate 402 is at a different height from the upper end of the positioning plate 401, that is, an inclined surface is formed, the included angle between the inclined surface and the horizontal plane is the angle of rotation of the optical lens, and the difference between the above-mentioned rigid clamping step and the repeated rigid clamping step is that, when the angle adjusting plate 402 and the positioning plate 401 move upward, the positioning plate 401 first contacts and pushes the lifting plate 513, the lifting plate 513 is stressed to drive the clamping frame 500 and the rotating rod 32 to rotate through the reset spring 514, the two clamping frames 500 drive the optical lens to rotate, until the optical lens is rotated to the required angle, at this time, the lifting plate 513 is in contact with the upper end of the angle adjusting plate 402 and the upper end of the positioning plate 401, and the steps of limiting the plurality of clamping rods 502 by the limiting plate 510 and the plurality of limiting holes 511 are repeated, the angle adjusting function of the optical lens and the rigid limiting function are both realized through one structure, thereby effectively improving the practicability of the clamping and positioning device.

[0052] In addition, the terms "first", "second", "one", "two" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0053] In this application, unless otherwise clearly indicated and limited, the terms "setting", "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0054] The embodiments of the specific implementation are the preferred embodiments of the application, not limited by the protection scope of the application, therefore, any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. An adjustable clamping and positioning device for optical lens processing, comprising a base, a two-way drive member is arranged in the middle of the base, characterized in that: a moving unit is symmetrically arranged and connected with both ends of the two-way drive member; an angle adjusting unit is arranged at the upper end of the base, the angle adjusting unit comprises a liftable angle adjusting push part; a clamping unit is arranged between the two moving units, the clamping unit comprises two clamping parts symmetrically connected on the two moving units, a limiting part is connected on the clamping part, and a supporting part is commonly connected between the two clamping parts; the clamping part comprises a clamping frame detachably connected with the moving unit, an air bag is installed in the clamping frame, a plurality of clamping rods are installed at the end of the air bag away from the moving unit, the clamping rods slide through the frame wall of the clamping frame, and a rubber plate is commonly installed at the end of the plurality of clamping rods away from the air bag; the limiting part comprises a limiting plate arranged on the side of the clamping frame away from the moving unit, a plurality of limiting holes are arranged on the limiting plate, and the plurality of limiting holes are simultaneously connected with the plurality of clamping rod sleeves; the air bag is inflated to drive the plurality of clamping rods and the rubber plate to flexibly clamp the optical lens, the angle adjusting push part pushes the limiting plate, the limiting plate drives the limiting hole to tightly clamp the moved clamping rod, and the flexible clamping is converted into rigid clamping; the moving unit comprises a moving plate fixedly connected with the end of the two-way drive member, at least one guide rod is installed at the end of the moving plate close to the base, the guide rod is slidably connected with the base, a rotating rod is rotatably connected to the moving plate close to the upper end, a torsional spring is arranged at the connection position of the rotating rod and the moving plate, a fixed plate is installed at the end of the rotating rod away from the moving plate, and the fixed plate is detachably connected with the clamping frame; the angle adjusting unit further comprises at least one lifting drive member installed on the base, and a lifting block is installed at the upper end of the lifting drive member; the angle adjusting push part comprises a supporting plate installed on the side wall of the lifting block, a positioning plate is installed on the supporting plate, an angle adjusting plate is slidably connected with the supporting plate at the front side of the positioning plate, the angle adjusting plate has an L-shaped structure, an adjusting screw is threadedly connected with the horizontal segment of the angle adjusting plate, and the adjusting screw is rotatably connected with the supporting plate.

2. The adjustable clamping and positioning device for optical lens processing according to claim 1, characterized in that: the limiting part further comprises two guide frames symmetrically installed at the end of the clamping frame away from the rotating rod, the guide frames have an L-shaped structure, the two guide frames are slidably connected with the corresponding limiting plates, a lifting plate is installed at the lower end of the limiting plate, and a return spring is installed between the lifting plate and the lower end of the clamping frame.

3. The adjustable clamping and positioning device for optical lens processing according to claim 1, wherein: the supporting part comprises two placing holes respectively arranged at the lower side of the two limiting plates, two placing rods fixedly connected with the clamping frame are symmetrically arranged in the placing holes.

4. The adjustable clamping and positioning device for optical lens processing according to claim 3, characterized in that: the supporting part further comprises a supporting plate arranged between the two placing holes, sliding grooves are arranged at both ends of the supporting plate close to the two placing holes, an extension plate is slidably connected in the sliding grooves, one end of the extension plate is fixedly connected with the clamping frame, and a connecting spring is installed between the other end of the extension plate and the end wall of the sliding groove.

5. The adjustable clamping and positioning device for optical lens processing according to claim 1, wherein: the limiting hole is a waist-shaped hole, and an anti-skid pad is installed on the bottom wall of the limiting hole.

6. The adjustable clamping and positioning device for optical lens processing according to claim 1, wherein: an inflation head is arranged on the air bag, and the inflation head is penetratingly connected with the top of the clamping frame.

7. The adjustable clamping and positioning device for optical lens processing according to claim 1, wherein: an inflation allowance is arranged between the plurality of clamping rods.

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