Ball lens precision polishing device and precision polishing method

By designing a spherical lens precision polishing device, using the combination of the rotation traversal mechanism and the positioning mechanism, the precise grinding of the circular protrusions on the surface of the spherical lens is achieved, solving the problems of uneven grinding and difficulty in processing circular protrusions in the production of spherical lenses, and improving optical performance and production yield.

CN118905811BActive Publication Date: 2025-05-16常州启元光学有限公司
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202411315389.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-05-16
Estimated Expiration
2044-09-20

AI Technical Summary

Technical Problem

In the production of existing ball lenses, the random rolling of the spherical parts during the polishing process leads to uneven surface grinding, which is particularly difficult to deal with the circular protrusions, resulting in the optical performance of the ball lenses not meeting the standards.

Method used

A ball lens precision casting device is designed, including a rotating traversal mechanism and a positioning mechanism, and the positioning mechanism is obtained by intermittent rotation and inclination sensors of the positioning plate, and the positioning plate is kept inclined by using the grinding belt conveyor mechanism and front and rear rod sets, so as to accurately align the grinding belt with the circular projection for grinding.

Benefits of technology

Accurate grinding of circular protrusions on the surface of the spherical lens is achieved, avoiding grinding of already regular areas, and improving the optical performance and production yield of the spherical lens.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118905811B_ABST
    Figure CN118905811B_ABST
Patent Text Reader

Abstract

The present invention belongs to the technical field of ball lens production, and specifically relates to a ball lens precision polishing device and precision polishing method. The ball lens precision polishing device comprises: obtaining the forward tilt angle when the front half of the positioning plate contacts the ball to be thrown, and the backward tilt angle when the rear half of the positioning plate contacts the ball to be thrown, through the tilt sensor arranged on the positioning plate, and when any angle exceeds the preset value, and the angle reaches the maximum after the ball to be thrown is paused, the bottom of the positioning plate is wrapped with a grinding belt of corresponding length through the grinding belt conveying mechanism, and the positioning plate is kept tilted through the front rod group and the rear rod group, and the rotating traversal mechanism is controlled to rotate the ball to be thrown, and the lifting seat is lowered, so that the grinding belt grinds the circular protrusion positioned. The present invention can grind only the positioned circular protrusion without grinding the already regular area around the circular protrusion, and can grind the arc that matches the surface of the ball to be thrown at the circular protrusion by gradually adjusting the tilt angle of the positioning plate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of ball lens production, and in particular relates to a ball lens precision polishing device and a precision polishing method. Background Art

[0002] A spherical lens is a type of optical lens. Its production process is as follows: the raw materials are melted to obtain a rough spherical embryo. At this time, it is still a certain distance away from a regular sphere, and it needs to go through two grinding processes of grinding and polishing to finally obtain a spherical lens of corresponding specifications, so that the intersection of each plane passing through the center of the sphere and the spherical surface is a circle of corresponding diameter.

[0003] At present, most of the grinding devices used for grinding and polishing ball lenses are as in the publication (announcement) No. CN221313649U, which grinds the middle spherical part through two upper and lower semicircular covers, or as in the publication (announcement) No. CN118238016A, which grinds the spherical part through a grinding disc. The principle is that the spherical part can roll randomly between the grinding parts, so the grinding effect of the grinding parts on the surface of the spherical part can only be expected to be relatively evenly distributed on the surface of the spherical part. Therefore, in the first grinding process, the grinding device currently used for grinding ball lenses cannot ensure that the surface of the spherical part can be evenly ground. There will always be a situation where most areas are ground to meet the requirements, but there are still scattered circular protrusions, making the entire surface of the ball lens still irregular, that is, most areas of the surface of the ball lens are regular, and there are circular protrusions in a small part of the area. At this time, if the above-mentioned grinding device is continued to be used for grinding, the already regularized areas will be ground together with these circular protrusions, and the problem of grinding down will occur. The polishing parts (polishing sheets, polishing belts, etc.) in the polishing process have weak grinding force and are powerless to grind away these circular protrusions. The current practice is to continue polishing and conduct inspection after polishing. If the proportion of these circular protrusions is not high and the optical performance indicators of the entire spherical lens still meet the standards, they will be packaged and put into storage. If the proportion of these circular protrusions is high, the optical performance indicators of the spherical lens will not meet the standards. At present, there is no equipment that can handle these circular protrusions well, and it is easy to grind the already regularized areas, so the yield rate of spherical lens production is always unstable. Summary of the invention

[0004] The purpose of the present invention is to provide a ball lens fine polishing device and a fine polishing method to solve the technical problem that the circular protrusions generated by the random rolling and grinding of the rough ball embryo between the grinding parts cannot be processed in the current ball lens production.

[0005] In order to solve the above technical problems, the present invention provides a ball lens precision polishing device, comprising: a rotating traversal mechanism, which is suitable for clamping the ball to be thrown and making it rotate intermittently until the positioning plate above the ball to be thrown traverses the surface of the ball to be thrown; the positioning plate is hinged to the lifting seat in the positioning mechanism, and the hinge point connection line is located on the symmetry plane of the positioning plate along the length direction, and the center of the positioning plate is located on the axis of the ball to be thrown; the two ends of the positioning plate are respectively connected to the front rod group and the rear rod group, which are suitable for the lifting seat to make the horizontal positioning plate descend until it abuts against the ball to be thrown when the ball to be thrown is paused, and then the two ends of the positioning plate are swung to make the front half of the positioning plate The control module is suitable for obtaining the front tilt angle when the front half of the positioning plate abuts the ball to be thrown, and the rear tilt angle when the rear half of the positioning plate abuts the ball to be thrown through the tilt sensor arranged on the positioning plate, and when any angle exceeds the preset value and the angle reaches the maximum after the ball to be thrown is paused, the bottom of the positioning plate is wrapped with a grinding belt of corresponding length through the grinding belt conveying mechanism, and the positioning plate is kept tilted through the front rod group and the rear rod group, and the rotating traversal mechanism is controlled to rotate the ball to be thrown, and the lifting seat is lowered, so that the grinding belt grinds the circular protrusion positioned.

[0006] On the other hand, the present invention also provides a method for fine polishing of a ball lens, comprising: the ball lens fine polishing device as described above; obtaining the forward inclination angle when the front half of the positioning plate abuts against the ball to be thrown, and the rearward inclination angle when the rear half of the positioning plate abuts against the ball to be thrown, through an inclination sensor arranged on the positioning plate; when any angle exceeds a preset value and the angle reaches a maximum after the ball to be thrown is paused, a grinding belt of corresponding length is wrapped around the bottom of the positioning plate through a grinding belt conveying mechanism; the positioning plate is kept inclined through a front rod group and a rear rod group, the ball to be thrown is rotated through a rotating traversal mechanism, and the lifting seat is lowered, so that the grinding belt grinds the circular protrusion positioned.

[0007] The beneficial effect of the present invention is that the present invention can make the ball to be thrown rotate intermittently through the rotating traversal mechanism until the positioning plate traverses the surface of the ball to be thrown once, and the positioning mechanism can make the horizontal positioning plate drop and abut against the ball to be thrown each time the ball to be thrown pauses during the intermittent rotation, and swing the two ends of the positioning plate through the front rod group and the rear rod group, so as to obtain the forward tilt angle when the front half of the positioning plate abuts against the ball to be thrown, and the rear tilt angle when the rear half of the positioning plate abuts against the ball to be thrown. When the ball to be thrown pauses, any angle of the forward tilt angle and the rear tilt angle exceeds the preset value, and the angle reaches When it is at its largest, it indicates that the positioning plate is in the middle of the circular protrusion, and then the bottom of the positioning plate is wrapped with a grinding belt of corresponding length through the grinding belt conveying mechanism, and the positioning plate is kept tilted through the front rod group and the rear rod group, and the ball to be thrown is rotated relative to the positioning plate with the grinding belt on the bottom through the rotating traversal mechanism, so that only the positioned circular protrusion is ground by the grinding belt of corresponding length instead of grinding the regular area around the circular protrusion, and the arc that matches the surface of the ball to be thrown can be ground at the circular protrusion by gradually adjusting the inclination angle of the positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the prior descriptions will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0009] Figure 1 It is a structural schematic diagram of a ball lens precision polishing device of the present invention;

[0010] Figure 2 The perspective view of the ball lens fine polishing device of the present invention Figure 1 ;

[0011] Figure 3 The perspective view of the ball lens fine polishing device of the present invention Figure 2 ;

[0012] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0013] Figure 5 The structure diagram of the positioning mechanism of the ball lens fine polishing device of the present invention is shown in FIG. Figure 1 ;

[0014] Figure 6 yes Figure 5 The enlarged view of point B in the middle;

[0015] Figure 7 The structure diagram of the positioning mechanism of the ball lens fine polishing device of the present invention is shown in FIG. Figure 2;

[0016] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0017] Fig. 9 It is a schematic diagram of the ball lens fine polishing device of the present invention when the rearward tilt angle of the positioning plate can be maximized after the ball to be polished is paused;

[0018] Fig.10 It is a schematic diagram of a spherical lens fine polishing device of the present invention when a gap is formed between the positioning plate and the circular protrusion;

[0019] Fig.11 It is a schematic diagram of a situation in which a grinding belt of a corresponding length is wrapped around the bottom of a positioning plate of a ball lens fine polishing device of the present invention;

[0020] Fig.12 It is a control block diagram of the ball lens precision polishing device of the present invention;

[0021] In the figure:

[0022] Rotating traversing mechanism 100, rotating base 111, grinding and polishing driving member 112, adjusting base 121, adjusting driving member 122, tray driving member 131, tray 132, clamping linear module 141, clamping slider 142, steering driving member 151, chuck 152,

[0023] Waiting to throw the ball 200,

[0024] Positioning mechanism 300, positioning plate 310, inclination sensor 311, positioning plate through hole 312, baseband slot 313, nozzle strip through hole 314, photoelectric strip through hole 315, lifting seat 321, lifting drive 322, upper force sensor 323, connecting rod 324, front rod group drive 325, rear rod group drive 326, lifting seat through hole 327, front rod group 330, front force sensor 331, front transmission rod 332, front Y-shaped rod 333, front U-shaped rod 334, rear rod group 340, rear force sensor 341, rear transmission rod 342, rear Y-shaped rod 343, rear U-shaped rod 344,

[0025] A polishing belt conveying mechanism 400, a front polishing belt conveying assembly 410, a first polishing belt conveying member 411, a second polishing belt conveying member 412, a rear polishing belt conveying assembly 420, a third polishing belt conveying member 421, a fourth polishing belt conveying member 422, a grinding belt positioning assembly 430, a positioning air nozzle 431, a constant current transfer tank 432, a reflective photoelectric sensor 433, a belt linear module 434, a positioning slider 435, a side rod 436, an accordion cover 437,

[0026] The front polishing base tape 510, the rear polishing base tape 520,

[0027] Grinding belt 610, polishing belt 620, marking sheet 630, dust extraction tube 640,

[0028] Mounting plate 710 , mounting seat 720 , box body 730 , circular protrusion 740 , box cover 750 , flap 760 . DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments of ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] like Figure 1 As shown, the present invention provides a ball lens precision polishing device, comprising: a rotating traversal mechanism 100, combined with Figure 2 , which is suitable for clamping the ball 200 to be thrown, so that it rotates intermittently until the positioning plate 310 above the ball 200 to be thrown traverses the surface of the ball 200 to be thrown; combined Figure 4 , the positioning plate 310 is hinged to the lifting seat 321 in the positioning mechanism 300, and the line connecting the hinge points is located on the symmetric plane of the positioning plate 310 along the length direction, and the center of the positioning plate 310 is located on the axis of the ball to be thrown 200; the two ends of the positioning plate 310 are respectively connected to the front rod group 330 and the rear rod group 340, which are suitable for making the lifting seat 321 lower the horizontal positioning plate 310 until it abuts against the ball to be thrown 200 when the ball to be thrown 200 is paused, and then swinging the two ends of the positioning plate 310 so that the front half of the positioning plate 310 abuts against the ball to be thrown 200, and the rear half of the positioning plate 310 abuts against the ball to be thrown 200; refer to Fig.12 , a control module is suitable for obtaining the forward tilt angle when the front half of the positioning plate 310 abuts against the ball 200 to be thrown, and the backward tilt angle when the rear half of the positioning plate 310 abuts against the ball 200 to be thrown through the tilt sensor 311 set on the positioning plate 310, and when any angle exceeds a preset value and the angle reaches the maximum after the ball 200 to be thrown is paused, the bottom of the positioning plate 310 is wrapped with a grinding belt 610 of corresponding length through the grinding belt conveying mechanism 400, and the positioning plate 310 is kept tilted through the front rod group 330 and the rear rod group 340, and the rotating traversal mechanism 100 is controlled to rotate the ball 200 to be thrown, and the lifting seat 321 is lowered, so that the grinding belt 610 grinds the circular protrusion positioned.

[0032] The ball lens precision polishing device can make the ball 200 to be thrown rotate intermittently by rotating the traversal mechanism 100 until the positioning plate 310 traverses the surface of the ball 200 to be thrown once. The positioning mechanism 300 can make the horizontal positioning plate 310 drop and abut against the ball 200 to be thrown each time the ball 200 to be thrown pauses during the intermittent rotation, and swing the two ends of the positioning plate 310 through the front rod group 330 and the rear rod group 340, so as to obtain the forward tilt angle when the front half of the positioning plate 310 abuts against the ball 200 to be thrown, and the backward tilt angle when the rear half of the positioning plate 310 abuts against the ball 200 to be thrown. When the ball 200 to be thrown pauses, any angle of the forward tilt angle and the backward tilt angle exceeds the preset value, and the angle reaches When it is at its maximum, it indicates that the positioning plate 310 is now in the middle of the circular protrusion, and then the bottom of the positioning plate 310 is wrapped with a grinding belt 610 of corresponding length through the grinding belt conveying mechanism 400, and the positioning plate 310 is kept tilted through the front rod group 330 and the rear rod group 340, and the ball 200 to be thrown 200 is rotated relative to the positioning plate 310 with the grinding belt 610 on the bottom through the rotating traversal mechanism 100, so that only the positioned circular protrusion is ground by the grinding belt 610 of corresponding length without grinding the already regular area around the circular protrusion, and the arc that matches the surface of the ball 200 to be thrown 200 can be ground at the circular protrusion by gradually adjusting the inclination angle of the positioning plate 310.

[0033] like Figure 3 and Figure 4 As shown, the positioning mechanism 300 may include: a lifting drive member 322, referring to Figure 1, which is arranged on the mounting plate 710; an upper force sensor 323, one end of which is connected to the protruding end of the lifting drive member 322, and the other end is connected to the lifting seat 321; a pair of connecting rods 324, one end of which is connected to the bottom of the lifting seat 321, and the other end is respectively hinged to the positioning plate 310, so that the hinge point connection line is located on the symmetry plane of the positioning plate 310 along the length direction, and the center of the positioning plate 310 is located on the axis of the ball 200 to be thrown; a front rod group driving member 325, which is arranged on the top surface of the lifting seat 321 and is transmission-connected with the front rod group 330, the front rod group 330 passes through the lifting seat 321 and is hinged to the front end of the positioning plate 310, and the front force sensor 331 is provided in the front rod group 330; a rear rod group driving member 326, which is arranged on the top surface of the lifting seat 321 and is transmission-connected with the rear rod group 340, the rear rod group 340 passes through the lifting seat 321 and is hinged to the rear end of the positioning plate 310, and the rear rod group 340 A rear force sensor 341 is provided in the middle; in at least one embodiment, the lifting drive member 322 can be but not limited to an electric cylinder, and the front rod group drive member 325 and the rear rod group drive member 326 can be but not limited to a micro motor; the control module is suitable for lowering the lifting seat 321 through the lifting drive member 322 when the ball 200 to be thrown is paused, so that the horizontal positioning plate 310 is lowered until the upper pressure obtained by the upper force sensor 323 exceeds a preset value, so that the horizontal positioning plate 310 abuts against the ball 200 to be thrown, and the front rod group drive member 325 and the rear rod group drive member 326 respectively drive the front rod group 330 and the rear rod group 340 until the front pressure obtained by the front force sensor 331 exceeds the preset value, so that the front half of the positioning plate 310 abuts against the ball 200 to be thrown, and the rear pressure obtained by the rear force sensor 341 exceeds the preset value, so that the rear half of the positioning plate 310 abuts against the ball 200 to be thrown.

[0034] like Figure 5 and Figure 6 As shown, a positioning plate through hole 312 is opened in the middle of the positioning plate 310; Figure 7 and Figure 8 As shown, the bottom surface of the positioning plate 310 is provided with baseband slots 313 extending to both ends, and the baseband slots 313 intersect with the positioning plate passband holes 312; Figure 5 As shown, the polishing belt conveying mechanism 400 may include: a front polishing belt conveying assembly 410, which is arranged in the lifting seat 321, referring to Figure 7 and Figure 8 , suitable for allowing the front polishing base tape 510 to pass through the channel formed by the positioning plate through-band hole 312 and the front part of the base tape groove 313; the rear polishing tape conveying assembly 420, which is arranged in the lifting seat 321, refer to Figure 7 and Figure 8 , suitable for allowing the post-polishing base tape 520 to pass through the channel formed by the positioning plate pass-through hole 312 and the rear portion of the base tape slot 313; Fig. 9The thickness of the front polishing base tape 510 and the rear polishing base tape 520 are both smaller than the base tape groove 313, so as to be hidden in the base tape groove 313, so as to avoid being sandwiched between the positioning plate 310 and the ball 200 to be thrown when the positioning plate 310 abuts against the ball 200 to be thrown; Figure 6 As shown, the front polishing base belt 510 and the rear polishing base belt 520 are connected to a plurality of groups of grinding belts 610 and polishing belts 620, and the tail end of the polishing belt 620 in each group is connected to the front end of the grinding belt 610, as shown in FIG. Figure 5 As shown, the spacing between the grinding tapes 610 and the polishing tapes 620 of each group is greater than half the length of the positioning plate 310, ensuring that after one group of grinding tapes 610 and polishing tapes 620 is consumed, before the next group of grinding tapes 610 and polishing tapes 620 are used, there is a sufficient length of the front grinding and polishing base tape 510 and the rear grinding and polishing base tape 520 hidden in the base tape groove 313; Figure 6 As shown, each polishing belt 620 and the grinding belt 610 are connected at the connection with a marking sheet 630; the grinding belt positioning assembly 430 is arranged on the positioning plate 310 and is controlled by the control module. Figure 8 , adapted to move the positioning air nozzle 431 extending to the bottom surface of the positioning plate 310 from the rear end to the middle of the positioning plate 310, combined with Figure 1 , and stops when the air pressure in the constant flow transfer tank 432 connected to the positioning air nozzle 431 drops to the minimum. The method for judging whether the air pressure drops to the minimum is that the control module obtains the air pressure in real time, and judges by the air pressure changing from large to small and then from small to large before and after passing through the gap. Fig.10 , so that the reflective photoelectric sensor 433 connected to the positioning air nozzle 431 stops at the gap formed by the positioning plate 310 and the circular protrusion, so that the control module will synchronously convey the front polishing belt conveying assembly 410 and the rear polishing belt conveying assembly 420 for the front polishing base belt 510 and the rear polishing base belt 520, and stop when the marking sheet 630 on the rear polishing base belt 520 moves to the reflective photoelectric sensor 433, so that the bottom of the positioning plate 310 is wrapped with a grinding belt 610 of a length adapted to the circular protrusion 740, and only the positioned circular protrusion 740 is ground without grinding the already regular area of ​​the ball 200 to be thrown around the circular protrusion 740.

[0035] In at least one embodiment, the front polishing base belt 510 and the rear polishing base belt 520 can be but not limited to rubber bands, the specifications of the polishing belt 620 and the grinding belt 610 can be used for ball lens polishing and grinding, the polishing belt 620 and the grinding belt 610 can be glued to the front polishing base belt 510 and the rear polishing base belt 520, and the marking sheet 630 can be glued to the connection between the polishing belt 620 and the grinding belt 610. When the front rod group driving member 325 and the rear rod group driving member 326 need to drive the positioning plate 310 to swing, the front polishing belt conveying assembly 410 and the rear polishing belt conveying assembly 420 slightly rotate to loosen the front polishing base belt 510 and the rear polishing base belt 520, and tighten them after the positioning plate 310 returns to the horizontal state. The constant flow transfer tank 432 can be in the form of a buffer tank connected to a constant flow air pump, and a pressure sensor is set on the buffer tank.

[0036] like Figure 6 As shown, the grinding belt positioning assembly 430 may include: a belt linear module 434, which is arranged on the positioning plate 310 and is electrically connected to the control module, and a positioning slider 435 is provided with a side rod 436; the positioning air nozzle 431 is arranged on the side rod 436, combined with Figure 8 and extends to the bottom surface of the positioning plate 310 through the nozzle strip through hole 314 on the positioning plate 310; the positioning nozzle 431 is connected to the accordion cover 437 in the nozzle strip through hole 314, so that the nozzle strip through hole 314 can be sealed during the movement of the positioning nozzle 431; return to Figure 6 The reflective photoelectric sensor 433 is arranged on the side rod 436 and irradiates the moving path of the marking sheet 630 through the photoelectric strip through hole 315 on the positioning plate 310. Fig.11 , so that when the marking sheet 630 moves to the reflective photoelectric sensor 433, a stop signal is sent to the control module.

[0037] like Figure 8 As shown, the thickness of the grinding tape 610 is adapted to the width of the positioning plate passband hole 312, so that the two grinding tapes 610 on the front polishing base tape 510 and the rear polishing base tape 520 can fill the positioning plate passband hole 312; the thickness of the polishing tape 620 is adapted to the width of the positioning plate passband hole 312, so that the two polishing tapes 620 on the front polishing base tape 510 and the rear polishing base tape 520 can fill the positioning plate passband hole 312. Fig.11 , so that the grinding belt 610 can keep in contact with the positioning plate through-belt hole 312 to form a continuous grinding section, thereby avoiding the appearance of a gap in the middle of the grinding section when grinding the circular protrusion 740. The same is true for the polishing belt 620.

[0038] like Figure 7As shown, the front polishing belt conveying assembly 410 may include: a first polishing belt conveying member 411 and a second polishing belt conveying member 412 arranged in the lifting seat 321, both of which are electrically connected to the control module; a lifting seat through hole 327 is provided on one side of the first polishing belt conveying member 411 and the second polishing belt conveying member 412; the two ends of the front polishing base belt 510 are respectively connected to the first polishing belt conveying member 411 and the second polishing belt conveying member 412; the front polishing base belt 510 can be connected to the first polishing belt conveying member 411 and the second polishing belt conveying member 412 through the lifting seat through hole 327 on one side of the first polishing belt conveying member 411, the base belt groove 313, the positioning plate through hole 312, and the lifting seat through hole 327 on one side of the second polishing belt conveying member 412; as shown Figure 7 As shown, the post-polishing belt conveyor assembly 420 may include: a third polishing belt conveyor member 421 and a fourth polishing belt conveyor member 422 arranged in the lifting seat 321, both of which are electrically connected to the control module; a lifting seat through hole 327 is provided on one side of the third polishing belt conveyor member 421 and the fourth polishing belt conveyor member 422; the two ends of the post-polishing base belt 520 are respectively connected to the third polishing belt conveyor member 421 and the fourth polishing belt conveyor member 422; the post-polishing base belt 520 can be connected to the third polishing belt conveyor member 421 and the fourth polishing belt conveyor member 422 through the lifting seat through hole 327 on the side of the fourth polishing belt conveyor member 422, the base belt slot 313, the positioning plate through hole 312, and the lifting seat through hole 327 on the side of the third polishing belt conveyor member 421. In at least one embodiment, the first polishing belt conveyor 411, the second polishing belt conveyor 412, the third polishing belt conveyor 421 and the fourth polishing belt conveyor 422 can be, but are not limited to, in the form of micro motors and winding rollers.

[0039] like Figure 4 As shown, the front rod group 330 may include: a front transmission rod 332, which is inserted into the lifting seat 321, and the upper part is engaged with the front rod group driving member 325, and the lower end passes through the lifting seat 321 and is connected to one end of the front force sensor 331; a front Y-shaped rod 333, whose main rod part is connected to the other end of the front force sensor 331, and the Y-shaped rod part is hinged to the upper end of the front U-shaped rod 334; the lower end of the front U-shaped rod 334 is hinged to the front end of the positioning plate 310; Figure 4 As shown, the rear rod group 340 may include: a rear transmission rod 342, which is passed through the lifting seat 321, and the upper part is engaged with the rear rod group driving member 326, and the lower end passes through the lifting seat 321 and is connected to one end of the rear force sensor 341; a rear Y-shaped rod 343, whose main rod part is connected to the other end of the rear force sensor 341, and the Y-rod part is hinged to the upper end of the rear U-shaped rod 344; the lower end of the rear U-shaped rod 344 is hinged to the rear end of the positioning plate 310.

[0040] like Figure 2 and Figure 3 As shown, the rotating traversal mechanism 100 may include: a rotating base 111, which is rotatably arranged on the mounting seat 720; a grinding and polishing drive member 112, which is transmission-connected to the rotating base 111; a direction-adjusting base 121, which is rotatably arranged on the rotating base 111; a direction-adjusting drive member 122, which is transmission-connected to the direction-adjusting base 121; a tray drive member 131, which is arranged on the direction-adjusting base 121; a tray 132, which is arranged on the protruding end of the tray drive member 131; a pair of clamping linear modules 141, which are symmetrically arranged on the rotating base 111, and the clamping sliders 142 are each provided with a steering drive member 151; a chuck 152 is provided on the protruding end of the steering drive member 151; the control module is suitable for controlling the tray drive member 131 to raise the tray 132 to receive the ball 200 to be thrown, and to raise the tray 132 through the clamping linear modules 141 The steering drive 151 moves toward each other, so that the chuck 152 clamps the ball 200 to be thrown, and then controls the tray drive 131 to lower the tray 132, so that the steering drive 151 intermittently rotates the ball 200 to be thrown, so that the ball 200 to be thrown pauses for a while every time it rotates, so that the positioning plate 310 can abut against it, and after the ball 200 to be thrown rotates one circle, the ball 200 to be thrown is supported again by the tray 132, so that the direction adjustment drive 122 rotates the ball 200 to be thrown that is released by the clamping linear module 141, and then the ball 200 to be thrown is clamped again by the clamping linear module 141 and rotated intermittently until the positioning plate 310 traverses the surface of the ball 200 to be thrown once; the control module is suitable for controlling the rotation base 111 to rotate through the grinding and polishing drive 112 after the circular protrusion is located, so that the circular protrusion on the ball 200 to be thrown rotates relative to the grinding belt 610 to grind off the located circular protrusion. In at least one embodiment, the grinding and polishing drive 112 and the direction adjustment drive 122 may be but are not limited to using motors, the tray drive 131 may be but are not limited to using electric cylinders, the steering drive 151 may be but are not limited to using motors, and electric slip rings may be provided in the rotating base 111 and the direction adjustment base 121 for wiring.

[0041] like Figure 2 and Figure 3 As shown, a dust extraction pipe 640 may be provided on one side of the positioning plate 310 to extract dust during grinding and polishing.

[0042] The working process of the ball lens precision polishing device is as follows. Figure 1 As shown, open the box cover 750 and the flap 760, and combine Figure 3, place the ball 200 to be thrown on the tray 132 and start the device. After the device is started, the tray driving component 131 raises the tray 132, and the clamping linear module 141 moves the steering driving component 151 toward each other, so that the chuck 152 clamps the ball 200 to be thrown; then, the lifting driving component 322 lowers the lifting seat 321 until the upper pressure obtained by the upper force sensor 323 exceeds the preset value, so that the horizontal positioning plate 310 abuts against the ball 200 to be thrown, and then the front rod group driving component 325 and the rear rod group driving component 326 respectively drive the front rod group 330 and the rear rod group 340 until the front pressure obtained by the front force sensor 331 exceeds the preset value, so that the front half of the positioning plate 310 abuts against the ball 200 to be thrown, and the rear pressure obtained by the rear force sensor 341 exceeds the preset value, so that the rear half of the positioning plate 310 abuts against the ball 200 to be thrown. During this period, the control module obtains the front inclination angle and the rear inclination angle through the inclination sensor 311, and then, the front rod group driving component 325 and the rear rod group driving component 3 26. The lifting drive 322 resets the positioning plate 310, and the steering drive 151 drives the ball 200 to be thrown to rotate for a while and then pauses, and the forward tilt angle and the backward tilt angle are obtained again. If the positioning plate 310 has a circular protrusion on the scanning path of the surface of the ball 200 to be thrown, according to the direction in which the steering drive 151 drives the ball 200 to be thrown to rotate, when the circular protrusion is encountered, one of the forward tilt angle and the backward tilt angle will first be different from the preset value when the ball 200 to be thrown is regular, and then after passing the circular protrusion, it will be restored to the preset value. In at least one embodiment, the device determines that any angle exceeds the preset value and the angle reaches the maximum by recording the angle during which the angle is different from the preset value, and the angle corresponding to each angle driven by the steering drive 151 to drive the ball 200 to be thrown to rotate. After passing the circular protrusion, the steering drive 151 drives the ball 200 to be thrown to return to the state when the angle reaches the maximum. At this time, the positioning plate 310 is Fig. 9 As shown in the middle of the circular protrusion 740, then, as Fig.10 As shown, the rear half of the positioning plate 310 is brought into contact with the ball 200 to be thrown through the front rod group driving member 325 and the rear rod group driving member 326. At this time, due to the presence of the circular protrusion 740, there is a gap among the positioning plate 310, the circular protrusion 740 and the ball 200 to be thrown. When the positioning slider 435 on the belt linear module 434 moves from the rear end to the middle of the positioning plate 310 with the positioning air nozzle 431, the air will be deflated fastest at the gap, and the air pressure of the constant current transfer tank 432 will be reduced to the minimum, indicating that the positioning air nozzle 431 is at the boundary of the circular protrusion 740 and the area where the ball 200 to be thrown has been regularized, and the reflective photoelectric sensor 433 also stops there. Fig.11As shown, the positioning plate 310 is lifted by the lifting drive member 322, and the front polishing tape 510 and the rear polishing tape 520 are sent out by the front polishing tape conveying assembly 410 and the rear polishing tape conveying assembly 420 until the marking sheet 630 moves to the reflective photoelectric sensor 433, so that the bottom of the positioning plate 310 is covered with the grinding tape 610 corresponding to the length of the circular protrusion 740, and the rest of the bottom surface of the positioning plate 310 is the polishing tape 620. Figure 2 As shown, the rotating base 111 rotates to rotate the ball 200 to be thrown relative to the positioning plate 310. When the lifting drive member 322 causes the positioning plate 310 to descend and contact the ball 200 to be thrown again, only the portion of the grinding belt 610 on the bottom surface of the positioning plate 310 will grind the positioned circular protrusion, and the remaining portion of the polishing belt 620 will not grind to the already regular area around the circular protrusion 740. During the grinding process, the inclination angle of the positioning plate 310 can be gradually adjusted by the front rod group drive member 325 and the rear rod group drive member 326, and an arc that matches the surface of the ball 200 to be thrown is ground at the circular protrusion 740 to avoid grinding the circular protrusion 740 into a sharp angle or a flat surface. After grinding, the front grinding and polishing belt conveyor assembly 410 and the rear grinding and polishing belt conveyor assembly 420 can be used to wrap the entire bottom surface of the positioning plate 310 with the polishing belt 620 to polish the ground portion.

[0043] Afterwards, if there are circular protrusions on the scanning path of the positioning plate 310 on the surface of the ball 200 to be thrown, the circular protrusions are also ground and polished. After the steering drive 151 rotates the ball 200 to be thrown for one circle, the ball 200 to be thrown is supported by the tray 132 again, so that the direction adjustment drive 122 rotates the ball 200 to be thrown that is released by the clamping linear module 141, and then the ball 200 to be thrown is clamped by the clamping linear module 141 again, so that the steering drive 151 rotates the ball 200 to be thrown for the next circle, until the positioning plate 310 traverses the surface of the ball 200 to be thrown, and the fine throwing of the entire surface of the ball 200 to be thrown is completed.

[0044] In at least one embodiment, a ball lens precision polishing method is also provided, comprising: the ball lens precision polishing device as described above; obtaining the forward tilt angle when the front half of the positioning plate 310 abuts against the ball 200 to be thrown, and the rearward tilt angle when the rear half of the positioning plate 310 abuts against the ball 200 to be thrown, through the inclination sensor 311 arranged on the positioning plate 310; when any angle exceeds a preset value, and the angle reaches a maximum after the ball 200 to be thrown is paused, the bottom of the positioning plate 310 is wrapped with a grinding belt 610 of a corresponding length through the grinding belt conveying mechanism 400; the positioning plate 310 is kept tilted through the front rod group 330 and the rear rod group 340, the ball 200 to be thrown is rotated through the rotating traversal mechanism 100, and the lifting seat 321 is lowered, so that the grinding belt 610 grinds and positions the circular protrusion.

[0045] The fine polishing method of the spherical lens fine polishing method and the technical effects produced have been described above and will not be repeated here.

[0046] In summary, the ball lens precision polishing device can make the ball 200 to be thrown rotate intermittently by rotating the traversal mechanism 100 until the positioning plate 310 traverses the surface of the ball 200 to be thrown once, and the positioning mechanism 300 can make the horizontal positioning plate 310 descend and abut against the ball 200 to be thrown each time the ball 200 to be thrown pauses during the intermittent rotation, and swing the two ends of the positioning plate 310 through the front rod group 330 and the rear rod group 340, so as to obtain the forward tilt angle when the front half of the positioning plate 310 abuts against the ball 200 to be thrown, and the rear tilt angle when the rear half of the positioning plate 310 abuts against the ball 200 to be thrown. When the ball 200 to be thrown pauses, any angle of the forward tilt angle and the rear tilt angle exceeds the preset value, and the When the angle reaches the maximum, it indicates that the positioning plate 310 is now in the middle of the circular protrusion, and then the bottom of the positioning plate 310 is wrapped with a grinding belt 610 of corresponding length through the grinding belt conveying mechanism 400, and the positioning plate 310 is kept tilted through the front rod group 330 and the rear rod group 340, and the ball 200 to be thrown is rotated relative to the positioning plate 310 with the grinding belt 610 on the bottom through the rotating traversal mechanism 100, so that only the positioned circular protrusion is ground by the grinding belt 610 of corresponding length without grinding the already regular area around the circular protrusion, and the arc that matches the surface of the ball 200 to be thrown can be ground at the circular protrusion by gradually adjusting the inclination angle of the positioning plate 310.

[0047] In the embodiments provided in this application, it should be understood that the disclosed systems and devices can be implemented in other ways. The embodiments described above are only exemplary. For example, the division of the mechanism is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0048] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0049] Based on the above-mentioned ideal embodiments of the present invention, and through the above-mentioned description, relevant technicians can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A ball lens fine polishing device, characterized in that: include: A rotating traversing mechanism (100) is adapted to clamp the ball to be thrown (200) and cause it to rotate intermittently until the positioning plate (310) above the ball to be thrown (200) traverses the surface of the ball to be thrown (200); The positioning plate (310) is hinged to the lifting seat (321) in the positioning mechanism (300), and the line connecting the hinge points is located on a symmetric plane of the positioning plate (310) along the length direction, and the center of the positioning plate (310) is located on the axis of the ball to be thrown (200); The two ends of the positioning plate (310) are respectively connected to the front rod group (330) and the rear rod group (340), and are suitable for swinging the two ends of the positioning plate (310) so that the front half of the positioning plate (310) abuts against the ball (200) to be thrown, and the rear half of the positioning plate (310) abuts against the ball (200) to be thrown, when the lifting seat (321) is paused. A control module, which is suitable for obtaining the front tilt angle when the front half of the positioning plate (310) contacts the ball to be thrown (200) and the rear tilt angle when the rear half of the positioning plate (310) contacts the ball to be thrown (200) through the tilt sensor (311) arranged on the positioning plate (310), and when any angle exceeds a preset value and the angle reaches a maximum after the ball to be thrown (200) is paused, the bottom of the positioning plate (310) is covered with a grinding belt (610) of a corresponding length through the grinding belt conveying mechanism (400), the positioning plate (310) is kept tilted through the front rod group (330) and the rear rod group (340), and the rotating traversing mechanism (100) is controlled to rotate the ball to be thrown (200), and the lifting seat (321) is lowered, so that the grinding belt (610) grinds the circular protrusion positioned; The positioning mechanism (300) comprises: A lifting drive member (322) disposed on the mounting plate (710); An upper force sensor (323), one end of which is connected to the protruding end of the lifting drive member (322), and the other end of which is connected to the lifting seat (321); A pair of connecting rods (324), one end of each of which is connected to the bottom of the lifting seat (321), and the other end of each of which is hinged to the positioning plate (310), so that the line connecting the hinge points is located on the symmetry plane of the positioning plate (310) along the length direction, and the center of the positioning plate (310) is located on the axis of the ball to be thrown (200); A front rod group driving member (325) is arranged on the top surface of the lifting seat (321) and is transmission-connected to the front rod group (330); the front rod group (330) passes through the lifting seat (321) and is hinged to the front end of the positioning plate (310); and a front force sensor (331) is provided in the front rod group (330); A rear rod group driving member (326) is arranged on the top surface of the lifting seat (321) and is transmission-connected to the rear rod group (340); the rear rod group (340) passes through the lifting seat (321) and is hinged to the rear end of the positioning plate (310); and a rear force sensor (341) is provided in the rear rod group (340); The control module is suitable for lowering the lifting seat (321) through the lifting driving member (322) when the ball (200) to be thrown is paused, so as to lower the horizontal positioning plate (310) until the upper pressure obtained by the upper force sensor (323) exceeds a preset value, so that the horizontal positioning plate (310) abuts against the ball (200) to be thrown, and driving the front rod group (330) and the rear rod group (340) respectively through the front rod group driving member (325) and the rear rod group driving member (326) until the front pressure obtained by the front force sensor (331) exceeds a preset value, so that the front half of the positioning plate (310) abuts against the ball (200) to be thrown, and the rear pressure obtained by the rear force sensor (341) exceeds a preset value, so that the rear half of the positioning plate (310) abuts against the ball (200) to be thrown; A positioning plate through-band hole (312) is formed in the middle of the positioning plate (310); Both sides of the bottom surface of the positioning plate (310) are provided with baseband slots (313) extending to both ends, and the baseband slots (313) intersect with the positioning plate passband holes (312); The polishing belt conveying mechanism (400) comprises: A front polishing tape conveying assembly (410) is arranged in the lifting seat (321) and is suitable for allowing the front polishing base tape (510) to pass through a channel formed by the positioning plate tape hole (312) and the front part of the base tape groove (313); A post-polishing tape conveying assembly (420) is disposed in the lifting seat (321) and is suitable for allowing the post-polishing base tape (520) to pass through a channel formed by the positioning plate tape hole (312) and the rear portion of the base tape groove (313); The thickness of the front-polished base tape (510) and the rear-polished base tape (520) are both smaller than the base tape groove (313) so as to be hidden in the base tape groove (313); The front polishing base belt (510) and the rear polishing base belt (520) are both connected to a plurality of groups of grinding belts (610) and polishing belts (620), and the rear end of the polishing belt (620) in each group is connected to the front end of the grinding belt (610), and the spacing between the grinding belts (610) and the polishing belts (620) in each group is greater than half the length of the positioning plate (310); A marking sheet (630) is provided at the connection between each polishing belt (620) and the grinding belt (610); A grinding belt positioning assembly (430) is disposed on the positioning plate (310) and is controlled by a control module. The positioning air nozzle (431) extending to the bottom surface of the positioning plate (310) is moved from the rear end to the middle of the positioning plate (310) and stops when the air pressure in a constant flow transfer tank (432) connected to the positioning air nozzle (431) is reduced to a minimum, so that a reflective photoelectric sensor (433) connected to the positioning air nozzle (431) stops at a gap formed between the positioning plate (310) and the circular protrusion, so that the control module stops the front grinding belt conveying assembly (410) and the rear grinding belt conveying assembly (420) for synchronously conveying the front grinding belt (510) and the rear grinding belt (520) when the marking sheet (630) on the rear grinding belt (520) moves to the reflective photoelectric sensor (433); The grinding belt positioning assembly (430) comprises: A belt linear module (434) is arranged on the positioning plate (310) and is electrically connected to the control module, and a side rod (436) is arranged on the positioning slider (435); The positioning air nozzle (431) is arranged on the side rod (436) and extends to the bottom surface of the positioning plate (310) through the air nozzle strip through hole (314) on the positioning plate (310); The positioning air nozzle (431) is connected to the accordion cover (437) in the air nozzle strip-shaped through hole (314); The reflective photoelectric sensor (433) is arranged on the side rod (436) and illuminates the moving path of the marking sheet (630) through the photoelectric strip through hole (315) on the positioning plate (310), so as to send a stop signal to the control module when the marking sheet (630) moves to the reflective photoelectric sensor (433); The front grinding and polishing belt conveying assembly (410) comprises: A first polishing belt conveyor (411) and a second polishing belt conveyor (412) disposed in the lifting seat (321), both of which are electrically connected to the control module; A lifting seat belt passage hole (327) is provided on one side of the first polishing belt conveyor (411) and the second polishing belt conveyor (412); The two ends of the front polishing base belt (510) are respectively connected to the first polishing belt conveyor (411) and the second polishing belt conveyor (412); The post-polishing belt conveying assembly (420) comprises: A third polishing belt conveyor (421) and a fourth polishing belt conveyor (422) disposed in the lifting seat (321), both of which are electrically connected to the control module; A lifting seat belt passage hole (327) is provided on one side of the third polishing belt conveyor (421) and the fourth polishing belt conveyor (422); The two ends of the post-polishing base belt (520) are respectively connected to the third polishing belt conveyor (421) and the fourth polishing belt conveyor (422); The rotation traversal mechanism (100) comprises: A rotating base (111) rotatably mounted on a mounting seat (720); A polishing driving member (112) which is drivingly connected to the rotating base (111); An adjustment base (121) which is rotatably arranged on the rotating base (111); A direction adjustment driving member (122) which is drivingly connected to the direction adjustment base (121); A tray driving member (131), which is arranged on the adjustment base (121); A tray (132) disposed on the protruding end of the tray driving member (131); A pair of clamping linear modules (141) are symmetrically arranged on the rotating base (111), and the clamping sliders (142) are both provided with steering drive components (151); A chuck (152) is provided on the protruding end of the steering drive member (151); The control module is suitable for controlling the tray driving member (131) to raise the tray (132) to receive the ball (200) to be thrown, and after the steering driving member (151) is moved toward each other by the clamping linear module (141) so that the clamping plate (152) clamps the ball (200) to be thrown, the tray driving member (131) is controlled to lower the tray (132) so that the steering driving member (151) intermittently rotates the ball (200) to be thrown, and after the ball (200) to be thrown rotates once, the tray (132) is used to hold the ball (200) to be thrown again, so that the direction adjustment driving member (122) rotates the released ball (200) once, and then the clamping linear module (141) is used to clamp the ball (200) to be thrown again and rotate it intermittently until the positioning plate (310) traverses the surface of the ball (200) to be thrown once; The control module is adapted to control the rotation of the rotating base (111) through the polishing driving member (112) after the circular protrusion is located, so that the circular protrusion on the ball to be polished (200) rotates relative to the grinding belt (610) to grind off the located circular protrusion.

2. The ball lens fine polishing device according to claim 1, characterized in that: The thickness of the grinding tape (610) is adapted to the width of the positioning plate passband hole (312), so that the two grinding tapes (610) on the front grinding and polishing base tape (510) and the rear grinding and polishing base tape (520) fill the positioning plate passband hole (312); The thickness of the polishing tape (620) is adapted to the width of the positioning plate passband hole (312), so that the two polishing tapes (620) on the front polishing base tape (510) and the rear polishing base tape (520) fill the positioning plate passband hole (312).

3. The ball lens fine polishing device according to claim 1, characterized in that: The front rod assembly (330) comprises: A front transmission rod (332) is inserted into the lifting seat (321), and the upper portion is meshed with the front rod assembly driving member (325), and the lower end passes through the lifting seat (321) and is connected to one end of the front force sensor (331); A front Y-shaped rod (333), the main rod portion of which is connected to the other end of the front force sensor (331), and the Y-rod portion is hinged to the upper end of the front U-shaped rod (334); The lower end of the front U-shaped rod (334) is hinged to the front end of the positioning plate (310); The rear rod assembly (340) comprises: A rear transmission rod (342) is inserted into the lifting seat (321), and the upper portion thereof is meshed with the rear rod assembly driving member (326), and the lower end thereof passes through the lifting seat (321) and is connected to one end of the rear force sensor (341); A rear Y-shaped rod (343), the main rod portion of which is connected to the other end of the rear force sensor (341), and the Y-rod portion is hinged to the upper end of the rear U-shaped rod (344); The lower end of the rear U-shaped rod (344) is hinged to the rear end of the positioning plate (310).

4. The ball lens fine polishing device according to claim 1, characterized in that: A dust extraction pipe (640) is provided on one side of the positioning plate (310).

5. A method for fine polishing a spherical lens, characterized in that: include: The ball lens precision polishing device according to any one of claims 1 to 4; Obtaining, by means of an inclination sensor (311) disposed on the positioning plate (310), a forward inclination angle when the front half of the positioning plate (310) contacts the ball to be thrown (200), and a rearward inclination angle when the rear half of the positioning plate (310) contacts the ball to be thrown (200); When any angle exceeds a preset value and the angle reaches a maximum value after the ball throwing (200) is paused, a grinding belt (610) of a corresponding length is wrapped around the bottom of the positioning plate (310) through a grinding belt conveying mechanism (400); The positioning plate (310) is kept tilted by the front rod group (330) and the rear rod group (340), the ball to be thrown (200) is rotated by the rotating traversal mechanism (100), and the lifting seat (321) is lowered, so that the grinding belt (610) grinds the circular protrusion positioned.

Citation Information

Patent Citations

  • Spherical lens polishing machine

    CN118238016A

  • Rolling type polishing device for polishing optical glass spherical prefabricated part

    CN221313649U

  • Aspheric surface abrasive belt grinding and polishing tool based on hydraulic servos

    CN102814714A

  • Automatic polishing device for special-shaped surfaces

    CN105856056A