CN110014181B

CN110014181B - Fixing device for optical lens and milling system

Info

Publication number: CN110014181B
Application number: CN201910415301.3A
Authority: CN
Inventors: 王建强; 沈科良; 叶小伟; 黄浩滨
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2024-03-26
Anticipated expiration: 2039-05-17
Also published as: CN110014181A

Abstract

The invention provides a fixing device for an optical lens and a milling system. The fixing device includes: a base having a receiving hole and a carrying platform positioned in the receiving hole; the adjusting mechanism is slidably arranged in a first direction relative to the base and can enable the optical lens to rotate around a second direction, wherein an included angle is formed between the first direction and the second direction. The embodiment of the invention provides a fixing device, which can ensure that an optical lens can rotate for a certain angle on the premise of not clamping an effective surface of the optical lens, thereby meeting the angle requirement of material handle treatment.

Description

Fixing device for optical lens and milling system

Technical Field

The invention relates to the field of fixing of optical lenses, in particular to a fixing device and a milling system for an optical lens.

Background

With the development of technology, optical products are more and more common in real life, and optical lenses are more and more required as main elements of the optical products, and more variety of optical lenses are also required. The optical lens is mainly formed by an injection molding machine, and therefore, the formed lens is basically provided with a material handle.

In the prior art, various methods for processing a material handle include hot cutting, laser cutting, milling by a milling cutter and the like. The hot cutting is easy to generate stress on the lens, so that the lens is easy to damage; laser cutting does not allow the cut surface to achieve the desired roughness. When milling is adopted, the angle rotation requirement of the optical lens in the cutting area to be processed cannot be met when the effective surface clamping of the lens cannot be adopted for some round lenses, so that the fixing mode of the lens during milling becomes a problem to be solved currently

Disclosure of Invention

The invention mainly aims to provide a fixing device and a milling system for an optical lens, which can ensure that the optical lens can rotate a certain angle on the premise of not clamping an effective surface of the optical lens, thereby meeting the angle requirement of material handle treatment.

In order to achieve the above object, according to one aspect of the present invention, there is provided a fixing device for an optical lens, the fixing device comprising: a base having a receiving hole and a carrying platform positioned in the receiving hole; the adjusting mechanism is slidably arranged in a first direction relative to the base and can enable the optical lens to rotate around a second direction, and an included angle is formed between the first direction and the second direction.

Further, the adjusting mechanism comprises two adjusting sliding blocks, a clamping groove is formed between the two adjusting sliding blocks at intervals, and the adjusting sliding blocks are slidably arranged relative to the base.

Further, the size of the clamping groove can be adjusted.

Further, the base is also provided with two first sliding grooves, and the two first sliding grooves are arranged in one-to-one correspondence with the two adjusting sliding blocks.

Further, the fixing device further comprises a first driving part arranged on the base, and the first driving part is used for driving the two adjusting sliding blocks to move in a first direction relative to the base.

Further, the fixing device comprises two first driving parts, and the two first driving parts and the two adjusting sliding blocks are arranged in one-to-one correspondence.

Further, the first driving part is a micrometer.

Further, the base is provided with a first sliding groove communicated with the containing hole, the adjusting sliding block comprises a first plate section, a second plate section and a third plate section which are sequentially connected, the width size of the second plate section is smaller than that of the first plate section and the third plate section, and the second plate section is located in the first sliding groove.

Further, the fixing device further comprises a first sealing plate connected with the base to limit the movement of the adjusting slider in the second direction.

Further, the fixing device further comprises a clamping part arranged on the base, and the clamping part is provided with a clamping cavity for clamping the optical lens.

Further, the size of the clamping cavity is adjustable.

Further, the clamping portion includes: the first clamping block is connected with the base; the second clamping block is movably arranged in the first direction relative to the base.

Further, the fixing device further comprises a second sealing plate connected with the base, and the second sealing plate is used for limiting the second clamping block to move in the third direction.

Further, the fixing device further comprises a second driving part arranged on the base, and the second driving part is connected with the second clamping block.

Further, the bearing platform is provided with an air passing through hole.

Further, the carrying platform comprises: the first bearing plate is connected with the base; the second bearing plate is arranged in a split mode with the first bearing plate, and the air passing through holes penetrate through the first bearing plate and the second bearing plate.

According to another aspect of the present invention, there is provided a milling system comprising a milling device and a fixture cooperating with the milling device, wherein the fixture is the fixture described above.

Further, the milling device comprises: a first driving mechanism; the second driving mechanism is supported on the first driving mechanism and can do reciprocating linear motion along a third direction along with the driving of the first driving mechanism; the milling mechanism is connected with the second driving mechanism, and can do reciprocating linear motion along the second direction under the driving of the second driving mechanism; and the third driving mechanism is connected with the fixing device to drive the fixing device to do reciprocating linear motion along the first direction, wherein an included angle is formed between the third direction and the first direction.

Further, the milling system comprises a support frame having a receiving space, the fixation device being movably arranged relative to the support frame such that the fixation device has at least a first position in the receiving space and a second position at least partly out of the receiving space.

Further, the support frame includes: a cover plate; and the bracket is connected with the cover plate, and the cover plate and the bracket form an accommodating space.

Further, the milling mechanism comprises a milling cutter, and a second through hole for the milling cutter to enter the accommodating space is formed in the cover plate.

Further, the cover plate includes: a cover plate body; an air inlet cover plate; the air outlet cover plate is arranged between the air inlet cover plate and the air outlet cover plate, and the air outlet cover plate and the air inlet cover plate are made of transparent materials.

Further, a gap is formed between the upper end surface of the fixing device and the cover plate.

Further, the milling system also has an exhaust passage and the base has an exhaust passage in communication with the exhaust passage.

Further, the base includes: a first substrate; the second substrate is connected with the first substrate, the accommodating hole is positioned on the first substrate, and the second substrate is provided with a groove communicated with the exhaust channel and the accommodating hole.

By applying the technical scheme of the invention, the optical lens to be processed is placed on the bearing platform, and the adjusting mechanism is slidably arranged relative to the base in the first direction, so that the optical lens to be processed can be driven to rotate around the second direction, and then the region to be processed can be milled according to the designed angle requirement, thereby meeting the angle requirements of the center line and the milling edge of the optical lens to be processed, and further ensuring the processing precision.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic exploded view of an embodiment of a fixation device according to the invention;

FIG. 2 shows a front view of the fixture of FIG. 1;

FIG. 3 shows a cross-sectional view of the fixture of FIG. 2;

FIG. 4 shows a partial enlarged view of the fixture of FIG. 2;

FIG. 5 shows a partial enlarged view of the fixture of FIG. 3;

FIG. 6 shows a schematic view of the structure of an optical lens to be processed that can be clamped using the fixture shown in FIG. 1;

fig. 7 shows a schematic perspective view of an embodiment of a milling system according to the present invention;

FIG. 8 shows an exploded view of the support frame of the milling system of FIG. 6;

FIG. 9 shows a schematic top view of a support frame of the milling system of FIG. 8; and

fig. 10 shows a schematic representation of the chip removal principle of the milling system of fig. 7.

Wherein the above figures include the following reference numerals:

3. a first driving mechanism; 4. a second driving mechanism; 5. a third driving mechanism; 8. a milling mechanism; 10. a base; 11. a first substrate; 12. a second substrate; 121. a groove; 13. a receiving hole; 14. a first chute; 20. an adjusting mechanism; 21. an adjusting slide block; 211. a first plate segment; 212. a second plate segment; 213. a third plate segment; 22. a clamping groove; 30. a first driving section; 40. a load-bearing platform; 41. a first bearing plate; 411. a first groove; 42. a second bearing plate; 421. a second groove; 43. a gas passing through hole; 44. a first through hole; 50. a clamping part; 51. a first clamping block; 52. a second clamping block; 53. a clamping cavity; 61. a first sealing plate; 62. a second sealing plate; 70. a support frame; 71. a cover plate; 711. a cover plate body; 712. an air inlet cover plate; 713. an air outlet cover plate; 72. a bracket; 73. an air inlet fixed block; 74. a second through hole; 80. a second driving section; 81. a milling cutter; 90. an optical lens to be processed; 100. a fixing device; 101. an overflow part; 102. a region to be processed; 103. an optical unit; 110. a conversion block; 120. an exhaust passage; A. a center line; B. and (5) milling edges.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

In the present invention and embodiments of the present invention, the surface of each lens closest to the object is referred to as the object side surface, and the surface of each lens closest to the imaging surface is referred to as the image side surface. The optical portion (which may also be referred to as an "effective diameter portion" or "effective diameter portion") is an optically active portion of the lens, and may be configured in a concave or convex shape as desired to diverge or converge light rays. The non-optical part surrounds and is connected with the optical part and mainly used for placing and supporting the connected optical part. The active surface refers to the surface located on the optic portion.

In the present invention and the embodiments of the present invention, the first direction refers to the Y-axis direction in fig. 1 and 7, the second direction refers to the Z-axis direction in fig. 1 and 7, and the third direction refers to the X-axis direction in fig. 1 and 7.

Fig. 6 shows a schematic structural view of an optical lens 90 to be processed. As shown in fig. 6, for a circular optical lens, the effective surface of the optical lens 90 to be processed cannot be clamped, and there is an angle requirement when cutting the area 102 to be processed (i.e. processing the material handle), so how to provide a fixing device, which can ensure that the optical lens 90 to be processed can rotate a certain angle without clamping the effective surface of the optical lens 90 to be processed is a technical problem to be solved in the present day.

Specifically, as shown in fig. 6, the optical lens to be processed 90 includes an overflow 101, an optical portion 103 connected to the overflow 101, and a region to be processed 102 connected to the optical portion 103. The optical portion 103 has an effective surface. The overflow part 101 and the area to be processed 102 need to be milled and removed, the effective surface of the optical part 103 cannot be clamped up and down, and the overflow part 101 also plays an angle positioning role in fixing the lens.

In order to solve the above technical problems, as shown in fig. 1 to 5, the applicant of the present invention provides a fixing device 100. The fixing device 100 of this embodiment includes a base 10 and an adjusting mechanism 20. Wherein the base 10 has a receiving hole 13 and a carrying platform 40 positioned in the receiving hole 13. The adjusting mechanism 20 is slidably disposed in a first direction relative to the base 10, and the adjusting mechanism 20 is capable of rotating the optical lens 90 to be processed about a second direction, wherein an included angle is formed between the first direction and the second direction.

Through the above arrangement, the optical lens 90 to be processed is placed on the carrying platform 40, and the adjusting mechanism 20 is slidably disposed in the first direction relative to the base 10, so that the optical lens 90 to be processed can be driven to rotate around the second direction, and then the region 102 to be processed can be milled according to the designed angle requirement.

Preferably, with the above-described fixing device 100, it is ensured that the angle between the center line a of the optical lens 90 to be processed and the milling edge B of the region 102 to be processed is 0.05 ° or less.

As shown in fig. 1 to 5, in the embodiment of the present invention, the adjusting mechanism 20 includes two adjusting sliders 21, the two adjusting sliders 21 are disposed at a distance to form a clamping groove 22, and the adjusting sliders 21 are slidably disposed with respect to the base 10. In the above arrangement, the overflow portion 101 can be clamped by the clamping groove 22, so that the function of clamping the optical lens 90 to be processed can be realized without clamping the surface of the optical portion 103, thereby avoiding the problem that the imaging quality is affected by scratching the optical portion 103.

As shown in fig. 1 to 5, in order to clamp the optical lenses 90 to be processed with different sizes, the fixing device 100 has a wider application range, and the size of the clamping groove 22 is adjustable.

As shown in fig. 1 to 5, in the embodiment of the present invention, the base 10 further has two first sliding grooves 14, and the two first sliding grooves 14 are disposed in one-to-one correspondence with the two adjusting sliders 21.

In the above arrangement, the adjusting slide 21 is slidably engaged with the first slide groove 14, which is simple in structure and convenient to operate, and a gap is formed between the first slide groove 14 and the adjusting slide 21 along the first direction, so that the adjusting slide 21 can reciprocate in the first direction in the corresponding first slide groove 14. By adjusting the position of one of the adjustment sliders 21 in the corresponding first slide groove 14 or simultaneously adjusting the positions of both adjustment sliders 21, the width dimension of the clamping groove 22 can be adjusted, so that the optical lens 90 to be processed having the overflow portions 101 of different dimensions can be clamped.

It should be noted that, if the angle of the optical lens 90 to be processed is to be adjusted, firstly, it is necessary to ensure that the width of the clamping groove 22 formed by the two adjusting sliders 21 is unchanged, that is, to ensure that the optical lens 90 to be processed can be clamped in the clamping groove 22; then, according to the Y-axis direction shown in fig. 7, the two adjusting sliders 21 are moved upward or downward simultaneously, so that the degree of freedom of the optical lens 90 to be processed in the X-axis and Y-axis directions is limited by the base 10 or the carrying platform 40 or the clamping portion 50 mentioned below, and the optical lens 90 to be processed can be rotated only by an angle in the clockwise direction or the counterclockwise direction, thereby facilitating the subsequent processing of the region 102 to be processed and meeting the angle requirement of the handle to be processed.

As shown in fig. 1 to 5, in the embodiment of the present invention, the fixing device 100 further includes a first driving part 30 disposed on the base 10, and the first driving part 30 is used to drive the two adjusting sliders 21 to move in a first direction relative to the base 10.

In this embodiment, the first driving unit 30 can drive the two adjustment sliders 21 to move in the first direction relative to the base 10.

Specifically, in the embodiment of the present invention, the fixing device 100 includes two first driving portions 30, and the two first driving portions 30 are disposed in one-to-one correspondence with the two adjusting sliders 21.

In this way, the two adjusting sliders 21 are moved upward or downward simultaneously while ensuring the width of the clamping groove 22 is unchanged, so that the optical lens 90 to be processed can be rotated by a certain angle, thereby facilitating the subsequent cutting.

Preferably, each first driving portion 30 is a micrometer, and the type of the micrometer adopted is: MCLN6 manufactured by Mitsui. The moving distance of the adjusting slide block 21 can be accurately adjusted by using a micrometer, so that the rotating angle of the optical lens 90 to be processed around the Z axis can be conveniently controlled.

Of course, in alternative embodiments of the invention not shown in the drawings, an air cylinder or a screw or a hydraulic cylinder or the like may also be employed as the first drive section 30.

As shown in fig. 1, in the embodiment of the present invention, the base 10 has a first chute 14 communicating with the receiving hole 13, and the adjusting slider 21 includes a first plate section 211, a second plate section 212 and a third plate section 213 sequentially connected, wherein the width dimension of the second plate section 212 is smaller than that of the first plate section 211 and the third plate section 213, and the second plate section 212 is located in the first chute 14.

With the above arrangement, the second plate section 212 of the adjustment slider 21 is caught in the first slide groove 14, and the second plate section 212 has a smaller width than the first plate section 211 and the third plate section 213, so that the adjustment slider 21 can be prevented from reciprocating in the third direction (i.e., the adjustment slider 21 is restricted from moving in the X-axis direction).

As shown in fig. 1, in order to prevent the adjustment slider 21 from reciprocally moving in the Z-axis direction, the fixing device 100 further includes a first sealing plate 61, the first sealing plate 61 being mounted above the adjustment slider 21, the first sealing plate 61 being connected to the base 10.

Preferably, the first sealing plate 61 is connected to the base 10 by screws.

Of course, in alternative embodiments of the invention not shown in the drawings, a clip connection may be employed, as long as the detachable connection between the first sealing plate 61 and the base 10 is ensured.

As shown in fig. 1, in the embodiment of the present invention, the fixing device 100 further includes a clamping portion 50 disposed on the base 10, and the clamping portion 50 has a clamping cavity 53 for clamping the optical lens 90 to be processed.

The clamping portion 50 is used for clamping and fixing the optical lens 90 to be processed, so that the optical lens 90 to be processed can be prevented from moving in the milling process, the processing precision of the optical lens 90 to be processed is ensured, and the processing quality is ensured.

In the embodiment of the present invention, as shown in fig. 1, the clamping cavity 53 is adjustable in size for facilitating disassembly and clamping of the optical lens 90 to be processed.

As shown in fig. 1, in the embodiment of the present invention, the clamping part 50 includes a first clamping block 51 and a second clamping block 52, wherein the first clamping block 51 is connected with the base 10, and the second clamping block 52 is movably disposed in a first direction with respect to the base 10.

In the above arrangement, the size of the clamping cavity 53 can be adjusted by adjusting the position of the second clamping block 52 relative to the base 10, so as to ensure that the milling operation is started after the optical lens 90 to be processed is clamped, and further ensure the processing precision.

Specifically, as shown in fig. 1, the first clamping block 51 has a U-shaped structure, and the ends of two opposite clamping walls of the U-shaped structure have an arc-shaped clamping surface that is adapted to the shape of the outer peripheral surface of the optical portion 103 of the optical lens 90 to be processed, so that the optical lens 90 to be processed can be better clamped.

Similarly, the second clamping block 52 has a similar structure to the first clamping block 51.

Of course, in alternative embodiments of the present invention, not shown in the drawings, other structures of the clamping portion 50 may be provided according to the shape of the actual optical lens 90 to be processed, as long as the function of clamping or unclamping the optical lens 90 to be processed can be achieved.

Preferably, the first clamping block 51 and the second clamping block 52 are made of plastic materials, so that the optical lens 90 to be processed can be prevented from being scratched or scratched. In addition, in the embodiment of the present invention, in order to avoid pinching and scratching the lens, except for the first clamping block 51 and the second clamping block 52, the components directly contacting the optical lens 90 to be processed are made of plastic materials, and the rest components are made of metal materials.

The following describes in detail how to adjust the rotation angle of the optical lens 90 to be processed with respect to the carrying platform 40:

(1) Rotating the micrometer as the first driving part 30, adjusting the width of the clamping groove 22 formed by the two adjusting slide blocks 21, clamping the overflow part 101 of the optical lens 90 to be processed into the clamping groove 22, namely clamping the optical lens 90 to be processed by the two adjusting slide blocks 21; at this time, the first clamping block 51 is in abutting contact with the outer peripheral surface of the optical lens 90 to be processed;

(2) According to the Y-axis direction shown in FIG. 7, the two adjusting slide blocks 21 are moved upwards or downwards simultaneously, so that the freedom of the optical lens 90 to be processed in the X-axis direction and the Y-axis direction is limited by the base 10 or the bearing platform 40 and the first clamping block 51, and the optical lens 90 to be processed can only rotate an angle in the clockwise direction or the anticlockwise direction, thereby facilitating the subsequent processing of the area 102 to be processed and meeting the angle requirement of a processing material handle;

(3) When the optical lens 90 to be processed is rotated to a desired position, the second clamping block 52 is moved in a direction approaching to the first clamping block 51, so that the clamping cavity 53 formed between the first clamping block 51 and the second clamping block 52 can clamp the optical lens 90 to be processed. After clamping, a milling operation can be performed by means of the milling cutter 81.

In order to limit movement of the second clamping block 52 in the second direction, the fixture 100 further includes a second sealing plate 62 coupled to the base 10, as shown in fig. 1, in an embodiment of the present invention.

Preferably, the second sealing plate 62 is connected to the base 10 by a screw. Of course, in alternative embodiments of the invention not shown in the drawings, clips may be used to secure the second seal plate 62 to the base 10.

As shown in fig. 1 to 3, in the embodiment of the present invention, the fixing device 100 further includes a second driving part 80 disposed on the base 10, and the second driving part 80 is connected to the second clamping block 52.

In this solution, the second driving portion 80 can drive the second clamping block 52 to move in the first direction relative to the base 10, so that the size of the clamping groove 22 can be adjusted, and thus the optical lens 90 to be processed with different sizes can be clamped.

Preferably, the second driving portion 80 in the embodiment of the present invention is a quick toggle clamp, and the specific model is as follows: model of rice: MC07-2. By pressing the handle on the quick toggle clamp, the second clamping block 52 is driven to reciprocate in the first direction, so that the quick clamping of the optical lens 90 to be processed is realized. Of course, in other embodiments, other models may be used according to actual needs, as long as the above requirements can be met.

Of course, in alternative embodiments not shown in the drawings, the second drive 80 may also be a cylinder or a screw.

As shown in fig. 1, in the embodiment of the present invention, the carrying platform 40 includes a first carrying plate 41 and a second carrying plate 42, where the first carrying plate 41 is connected to the base 10, the second carrying plate 42 is separately disposed from the first carrying plate 41, and the air passing through holes 43 penetrate through the first carrying plate 41 and the second carrying plate 42.

In this technical scheme, when the pressure gas enters into the load-bearing platform 40, the pressure gas can move downwards along the gas passing through hole 43, so that the displacement of the floating of the optical lens 90 to be processed can be reduced as much as possible, the position of the optical lens 90 to be processed is avoided, and the processing precision of the optical lens 90 to be processed in the subsequent process is ensured.

Specifically, the first loading plate 41 is connected to the base 10, and the first loading plate 41 has a first recess 411. The first loading plate 41 has an octagonal outer profile, and the first loading plate 41 is positioned in the receiving hole 13 and connected to an inner wall surface of the receiving hole 13. The second carrier plate 42 is accommodated in the first recess 411. The second bearing plate 42 is provided with a second groove 421 on a surface thereof, and the second groove 421 is used for placing the optical lens 90 to be processed. Thus, the second groove 421 serves to reduce the contact area between the optical lens 90 to be processed and the second carrier plate 42; and simultaneously, the contact area between the gas passing through holes 43 and the optical lens 90 to be processed is increased, and the stress is more uniform.

The first through holes 44 are provided on the second carrier plate 42 in a number of 4 and are uniformly spaced around the air through holes 43. The first through holes 44 are actually bolt holes for the fixation of the second carrier plate 42 and the first carrier plate 41.

Of course, in alternative embodiments not shown in the drawings, the outer contour of the first loading plate 41 may have other shapes such as quadrangle, and the number and distribution of the gas passing through holes 43 and the first through holes 44 may be configured according to actual situations.

As shown in fig. 7, 8 and 9, in the embodiment of the present invention, the milling mechanism 8 includes a milling cutter 81, and the cover plate 71 is provided with a second through hole 74 for the milling cutter 81 to enter the accommodating space. Specifically, the cover 71 is provided with two second through holes 74 at intervals along the X-axis direction, and the second through holes 74 are waist-shaped holes.

Through the above arrangement, the milling cutter is facilitated to enter the accommodation space, and meanwhile, the movement amount of the milling cutter in the X-axis direction is increased, so that the optical lens 90 to be processed is facilitated to be milled. When the milling cutter enters any one of the second through holes 74 for milling, the air enters the cavity of a cover plate body 711 mentioned below through the air inlet fixed block 73, and then flows out along the milling cutter through the other second through hole 74, so that the milling cutter can be cooled.

Of course, in alternative embodiments not shown in the drawings, more (e.g., 3 or 10, etc.) second through holes 74 may be provided according to actual needs, and the shape of the second through holes 74 may be circular or other shapes.

As shown in fig. 7 to 9, the milling system according to the embodiment of the invention further comprises a support frame 70, the support frame 70 having a receiving space, the securing device 100 being movably arranged relative to the support frame 70 such that the securing device 100 has at least a first position in the receiving space and a second position at least partly out of the receiving space.

Through the above arrangement, the fixing device 100 can be moved into the accommodating space of the supporting frame 70 in the Y-axis direction, so that a certain closed cavity can be formed, and the chips of the optical lens 90 to be processed cannot fly out of the cavity when milling the inside and can be directly absorbed by the external dust collecting device through the exhaust channel 120.

As shown in fig. 7, in an embodiment of the invention, the milling device comprises a first drive mechanism 3, a second drive mechanism 4, a third drive mechanism 5 and a milling mechanism 8. The second driving mechanism 4 is supported on the first driving mechanism 3 and can reciprocate along a third direction along with driving of the first driving mechanism 3, the milling mechanism 8 is connected with the second driving mechanism 4, the milling mechanism 8 can reciprocate along the second direction under driving of the second driving mechanism 4, and the third driving mechanism 5 is connected with the fixing device 100 to drive the fixing device 100 to reciprocate along the first direction.

In the above arrangement, the second driving mechanism 4 can drive the milling mechanism 8 to move in the Z-axis direction relative to the optical lens 90 to be processed, the first driving mechanism 3 can drive the second driving mechanism 4 to move in the X-axis direction relative to the optical lens 90 to be processed, the third driving mechanism 5 can drive the fixing device 100 to move in the Y-axis direction relative to the milling mechanism 8, and the milling mechanism 8 is connected with the second driving mechanism 4, so that the second driving mechanism 4 can drive the milling mechanism 8 to move together in the X-axis direction.

Wherein the first driving mechanism 3 is capable of driving the milling mechanism 8 to move a preset distance in the X-axis direction, so that the milling mechanism 8 moves to a preset position in the X-axis direction relative to the optical lens 90 to be processed, the second driving mechanism 4 is capable of driving the milling mechanism 8 to move a preset distance in the Y-axis direction, so that the milling mechanism 8 moves to a preset position in the Z-axis direction relative to the optical lens 90 to be processed, and the third driving mechanism 5 is capable of driving the fixing device 100 to move a preset distance in the Y-axis direction relative to the milling mechanism 8, so that the fixing device 100 moves to a preset position in the Y-axis direction relative to the milling mechanism 8.

As shown in fig. 7, the milling system is arranged on a work table, in particular, a support frame 70 is fixed to the work table, to which the first drive mechanism 3 is also fixed. The entire milling system including the fixture 100 is compact and occupies a small area.

In the following, it is explained in detail how the first drive mechanism 3, the second drive mechanism 4 and the third drive mechanism 5 work, so that the milling mechanism 8 and the optical lens 90 to be processed meet preset position requirements:

(1) Driving the fixture 100 in the Y-axis direction by the third driving mechanism 5 so that the fixture 100 reaches the first position of the accommodation space, and thus, the region 102 to be machined is located below the second through hole 74;

(2) The first driving mechanism 3 is utilized to drive the second driving mechanism 4, and the second driving mechanism 4 drives the milling mechanism 8 to move along the X-axis direction, so that the milling cutter 81 is positioned above the second through hole 74;

(3) The milling cutter 81 is driven by the second driving mechanism 4 to move downwards and pass through the second through hole 74, so that the optical lens 90 to be processed is convenient to mill;

(4) The first driving mechanism 3 and the third driving mechanism 5 move cooperatively to form a milling track preset for the optical lens 90 to be processed;

(5) After finishing milling of the optical lens 90 to be processed, driving the milling cutter 81 to move upwards along the Y-axis direction by using the second driving mechanism 4, so that the milling cutter 81 withdraws to the position above the second through hole 74;

(6) The fixing device 100 is driven in the Y-axis direction by the third driving mechanism 5 so that the fixing device 100 can be in the second position, i.e., the position in which the fixing device 100 is moved out of or partially moved out of the above-mentioned accommodation space.

The milling cutter in the related art can move in three directions of an X axis, a Y axis and a Z axis, wherein the milling cutter moves in the X axis and the Y axis through a driving mechanism, and the movement in the Z axis direction is manually adjusted through an adjusting mechanism on the milling device. The milling device of the invention is different from the related art in that:

(1) The embodiment of the invention is additionally provided with a second driving mechanism for driving the milling cutter to move in the Z-axis direction;

(2) In the embodiment of the invention, the milling cutter can be driven to move only in the X-axis direction and the Z-axis direction, and the milling cutter can not be driven to move in the Y-axis direction.

Preferably, in the embodiment of the present invention, the first driving mechanism 3, the second driving mechanism 4 and the third driving mechanism 5 are all air cylinders, and the air cylinders can realize full-automatic driving, and the driving mode has the characteristics of simple operation, convenience and rapidness, and can improve the milling efficiency of the optical lens 90 to be processed.

Of course, in an alternative embodiment not shown in the drawings, the first driving mechanism 3, the second driving mechanism 4 and the third driving mechanism 5 may be a combination of a cylinder and a screw, or may be a ball screw.

Specifically, as shown in fig. 8, the support frame 70 includes a cover plate 71 and a bracket 72. Wherein, the bracket 72 is supported below the cover plate 71, and an accommodating space is formed between the cover plate 71 and the bracket 72. The cover 71 includes a cover body 711, an inlet cover 712, and an outlet cover 713. Wherein, the cover plate body 711 is located between the inlet cover plate 712 and the outlet cover plate 713, and the inlet fixing block 73 is mounted and fixed on the inlet cover plate 712. The air inlet cover plate 712 and the air outlet cover plate 713 are respectively provided with an air passing hole, and the air inlet fixed block 73 is provided with an air inlet communicated with the air passing holes.

The pressure gas enters from the gas inlet and sequentially passes through the gas passing holes provided in the gas inlet cover plate 712 and the gas outlet cover plate 713 to enter the accommodating space.

Preferably, the outlet cover plate 713 and the inlet cover plate 712 are made of acrylic material. The transparency of the acrylic material is very high, the light transmittance can reach more than 92%, and the light is soft and the vision is clear. During milling of the optical lens 90 to be processed, a processor can observe the internal milling condition through the transparent air inlet cover plate 712 and the air outlet cover plate 713, so that the relative positions of the optical lens 90 to be processed and the milling mechanism 8 can be conveniently adjusted, and of course, the air outlet cover plate 713 and the air inlet cover plate 712 can be made of transparent glass fiber reinforced plastics.

It should be noted that, if observation is not required, the outlet cover plate 713 and the inlet cover plate 712 may not be made of transparent materials, where the materials have no effect on the milling function, that is, the applicant may arbitrarily select the materials of the outlet cover plate 713 and the inlet cover plate 712 as long as the milling function can be ensured to be performed normally.

As shown in fig. 7, in the embodiment of the present invention, a gap is formed between the upper end surface of the fixing device 100 and the cover plate 71, so as to ensure that the fixing device 100 moves in the second direction relative to the cover plate 71 without interference. The smaller the gap, the better the closure of the chip space formed by the cover plate 71 and the fixture 100. Specifically, the clearance between the upper end surface of the fixing device 100 and the cover plate 71 is not more than 0.2mm.

As shown in fig. 1 to 3, the milling system in the embodiment of the present invention further has an exhaust passage, and the susceptor 10 has an exhaust passage communicating with the exhaust passage 120. The optical lens 90 to be processed generates chips during the milling process, and the chips can be cleaned by the pressure gas through the exhaust passage. The milling cutter 81 is often damaged by overheating during milling, and the pressure gas can dissipate heat and cool the milling cutter 81 through the exhaust passage.

Specifically, the base 10 includes a first substrate 11 and a second substrate 12, wherein the first substrate 11 is mounted and fixed on the second substrate 12. The first substrate 11 is provided with a receiving hole 13, the second substrate 12 is provided with a groove 121, and the receiving hole 13 communicates with the groove 121 up and down to form an exhaust passage. The air inlet of the air inlet fixing block 73 communicates with the air passing hole of the cover plate 71 to form an air passing passage. The overair passage communicates with an exhaust passage, which in turn communicates with an exhaust passage 120, the exhaust passage 120 communicating with an external dust collection device through a transfer block 110, thereby forming a complete debris discharge passage. Pressurized gas is injected from the inlet and the external dust collection device draws debris from the exhaust passage 120 so that the entire debris discharge passage is under negative pressure, enhancing the flow of purge gas and allowing efficient and rapid removal of debris.

As shown in fig. 10, the following details how the pressurized gas can be used to accomplish the evacuation of chips formed by the milling process using the chip channels:

the pressure gas enters the accommodating hole 13 through the gas inlet of the gas inlet fixed block 73; part of the pressure gas blows away the scraps on the upper surface of the optical lens 90 to be processed through the accommodating hole 13, so that the cleanliness of the upper surface of the lens is ensured; another part of the pressure gas enters the groove 121 through the connecting channel of the containing hole 13 and the groove 121; the pressure gas entering the groove 121 can blow away the scraps on the lower surface of the optical lens 90 to be processed, so that the cleanliness of the lower surface is ensured; all of the pressurized gas and debris is directed into the exhaust passage 120; finally, the negative pressure generated by the external dust collecting device is used to suck the chips in the exhaust passage 120.

Before the cutting work and the chip removing process are performed, the fixing device 100 can be moved into the accommodating space of the supporting frame 70 in the Y-axis direction, so that a certain closed cavity (the cavity can be considered to be closed because the gap between the upper end surface of the fixing device 100 and the cover plate 71 is less than or equal to 0.2 mm) can be formed, and chips cannot fly out of the cavity when the optical lens 90 to be processed is internally milled, and can be directly absorbed by the external dust collecting device through the exhaust channel 120. Therefore, the milling system solves the problem that chips and the like in the related technology are easy to fly out and fall on a working platform.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: the optical lens to be processed can be clamped on the non-effective clamping surface by utilizing the fixing device, and the rotation angle of the optical lens to be processed around the Z-axis direction can be adjusted, so that the angle requirement between the central line A of the optical lens to be processed and the milling edge B of the area to be processed is met. Meanwhile, by optimizing the milling system, scraps generated in the milling process can be better discharged, and the efficiency of scraps discharge is improved.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixture for an optical lens, characterized in that the fixture (100) comprises:

a base (10) having a receiving hole (13) and a carrying platform (40) located within the receiving hole;

an adjustment mechanism (20) slidably disposed in a first direction relative to the base (10), the adjustment mechanism (20) being capable of rotating the optical lens about a second direction, wherein an angle is formed between the first direction and the second direction;

the adjusting mechanism (20) comprises two adjusting sliding blocks (21), two clamping grooves (22) are formed between the two adjusting sliding blocks (21) at intervals, the adjusting sliding blocks (21) are slidably arranged relative to the base (10), and the sizes of the clamping grooves (22) are adjustable;

the base (10) is also provided with two first sliding grooves (14), and the two first sliding grooves (14) are arranged in one-to-one correspondence with the two adjusting sliding blocks (21); the fixing device (100) further comprises first driving parts (30) arranged on the base (10), the first driving parts (30) are used for driving the two adjusting sliding blocks (21) to move relative to the base (10) in the first direction, the number of the first driving parts (30) is two, and the two first driving parts (30) are arranged in one-to-one correspondence with the two adjusting sliding blocks (21);

the first sliding groove (14) is communicated with the accommodating hole (13), the adjusting sliding block (21) comprises a first plate section (211), a second plate section (212) and a third plate section (213) which are sequentially connected, wherein the width dimension of the second plate section (212) is smaller than that of the first plate section (211) and the third plate section (213), and the second plate section (212) is positioned in the first sliding groove (14);

the fixing device (100) further comprises a first closing plate (61), the first closing plate (61) being connected to the base (10) to limit the movement of the adjustment slider (21) in the second direction.

2. The fixture according to claim 1, wherein the first drive section (30) is a micrometer.

3. The fixture according to claim 1, wherein the fixture (100) further comprises a clamping portion (50) provided on the base (10), the clamping portion (50) having a clamping cavity (53) for clamping the optical lens.

4. A fixing device according to claim 3, characterized in that the clamping chamber (53) is adjustable in size.

5. The fixing device according to claim 4, wherein the clamping portion (50) comprises:

a first clamping block (51) connected to the base (10);

a second clamping block (52) is movably arranged in the first direction relative to the base (10).

6. The fixture according to claim 5, wherein the fixture (100) further comprises a second sealing plate (62) connected to the base (10), the second sealing plate (62) being adapted to restrict movement of the second clamping block (52) in a second direction.

7. The fixing device according to claim 5, characterized in that the fixing device (100) further comprises a second driving part (80) arranged on the base (10), the second driving part (80) being connected with the second clamping block (52).

8. The fixing device according to claim 1, characterized in that the carrier platform (40) is provided with an air passage (43).

9. The fixture of claim 8, wherein the load bearing platform (40) comprises:

a first carrier plate (41) connected to the base (10);

the second bearing plate (42) is arranged in a split mode with the first bearing plate (41), and the air passing through holes (43) penetrate through the first bearing plate (41) and the second bearing plate (42).

10. Milling system, characterized by comprising a milling device and a fixture (100) cooperating with the milling device, the fixture (100) being a fixture (100) according to any one of claims 1 to 9.

11. The milling system of claim 10, wherein the milling device comprises:

a first drive mechanism (3);

a second driving mechanism (4) supported on the first driving mechanism (3) and capable of reciprocating rectilinear motion along a third direction along with driving of the first driving mechanism (3);

the milling mechanism (8) is connected with the second driving mechanism (4), and the milling mechanism (8) can do reciprocating linear motion along the second direction under the driving of the second driving mechanism (4);

and the third driving mechanism (5) is connected with the fixing device (100) to drive the fixing device (100) to do reciprocating linear motion along the first direction, wherein an included angle is formed between the third direction and the first direction.

12. The milling system according to claim 11, further comprising a support frame (70), the support frame (70) having a receiving space, the securing device (100) being movably arranged relative to the support frame (70) such that the securing device (100) has at least a first position within the receiving space and a second position at least partially out of the receiving space.

13. The milling system according to claim 12, wherein the support frame (70) comprises:

a cover plate (71);

and the bracket (72) is connected with the cover plate (71), and the cover plate (71) and the bracket (72) form the accommodating space.

14. Milling system according to claim 13, characterized in that the milling mechanism (8) comprises a milling cutter, and that the cover plate (71) is provided with a second through hole (74) for the milling cutter to enter the receiving space.

15. Milling system according to claim 13, characterized in that the cover plate (71) comprises:

a cover plate body (711);

an intake cover (712);

and the air outlet cover plate (713), the cover plate body (711) is positioned between the air inlet cover plate (712) and the air outlet cover plate (713), and the air outlet cover plate (713) and the air inlet cover plate (712) are made of transparent materials.

16. Milling system according to claim 13, characterized in that a gap is present between the upper end surface of the fixture (100) and the cover plate (71).

17. Milling system according to any one of claims 10 to 16, characterized in that the milling system further has an exhaust channel, the seat (10) having an exhaust passage communicating with the exhaust channel.

18. The milling system according to claim 17, wherein the base (10) comprises:

a first substrate (11);

the second base plate (12) is connected with the first base plate (11), the accommodating hole (13) is positioned on the first base plate (11), and the second base plate (12) is provided with a groove (121) communicated with the exhaust channel and the accommodating hole (13).