Spherical surface grinding device for self-focusing lens machining

Abstract

The invention belongs to the technical field of lens grinding, and discloses a spherical surface grinding device for self-focusing lens machining, which comprises a bottom bracket, a first fixing frame is mounted on the bottom bracket, a rotating motor is mounted in the first fixing frame, a rotating cylinder is fixedly connected to an output shaft of the rotating motor, and the rotating cylinder is fixedly connected to a rotating shaft of the rotating motor. A telescopic mounting cylinder is connected to the interior of the rotating cylinder through a spline, a to-be-machined lens is mounted in the telescopic mounting cylinder, a rotating crank is connected to the telescopic mounting cylinder in a threaded mode, and the rotating crank is rotationally connected with a transmission connecting block; through cooperation of the light sensing element, the laser detector and other structures, the laser detector emits laser to the surface of the to-be-machined lens, the grinding effect of the to-be-machined lens is detected, the laser is deflected to the light sensing element through refraction of the to-be-machined lens, and grinding machining of the surface of the to-be-machined lens at the current radius distance is completed; and the light sensing element transmits an electric signal to the second fixing frame.

Description

Technical Field

[0001] The invention belongs to the technical field of lens grinding, in particular to a spherical grinding device for self-focusing lens processing. Background Art

[0002] The self-focusing lens, also known as the gradient refractive index lens, refers to a cylindrical lens whose internal refractive index distribution gradually decreases along the radial direction. For high-precision optical lenses, the properties of the optical lenses are extremely high. Therefore, during the processing, it is necessary to ensure that the lens surface has low defects, high smoothness, good surface shape, and low surface roughness. Usually, spherical grinding equipment is required to grind the lens during the processing of the self-focusing lens.

[0003] In the process of spherical grinding of existing self-focusing lenses, the spherical grinding effect of the lens is rarely tested during the process. Instead, the test is performed after the grinding process is completed. If reworked products appear, the reworked lenses need to be tested and then repaired according to the test results, which can easily lead to a decrease in the production efficiency of the lenses. Summary of the invention

[0004] In order to solve the problem in the background technology that the self-focusing lens is rarely inspected in real time during the grinding process, and if reworked products occur, the production efficiency may be reduced, the present invention provides a spherical grinding device for self-focusing lens processing.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spherical grinding device for self-focusing lens processing, comprising a bottom bracket, a first fixed bracket is installed on the bottom bracket, a rotating motor is installed in the first fixed bracket, a rotating cylinder is fixedly linked to the output shaft of the rotating motor, a telescopic mounting cylinder is splined in the rotating cylinder, a lens to be processed is installed in the telescopic mounting cylinder, a rotating crank is threaded on the telescopic mounting cylinder, the rotating crank is rotatably connected to a transmission connecting block, the transmission connecting block is rotatably connected to a wedge-shaped limit block, the wedge-shaped limit block is fixedly connected to a photosensitive element, a grinding workbench is fixedly connected to the bottom bracket, a limiting connecting plate is fixedly connected to the grinding workbench, a sliding connecting rod is slidably connected to the limiting connecting plate, the sliding connecting rod is fixedly connected to a detector fixing frame at one end close to the rotating cylinder, and a laser detector is installed in the detector fixing frame.

[0006] Preferably, a rotating knob is fixedly connected to the rotating crank, a wedge-shaped limiting slide is fixedly connected to the inner wall of the telescopic mounting tube, a wedge-shaped slide is opened on the wedge-shaped limiting slide, and the wedge-shaped slide of the wedge-shaped limiting slide fits with the wedge-shaped limiting block.

[0007] Preferably, the rotating cylinder is rotationally connected to a second fixed frame, a telescopic push rod is installed in the second fixed frame, the telescopic push rod is fixedly connected to a limited connecting shaft, the limited connecting shaft is rotationally connected to the telescopic mounting cylinder, and the light sensing element is electrically connected to the telescopic push rod.

[0008] Preferably, a symmetrically distributed extrusion wedge plate is fixedly connected to the outer contour of the telescopic mounting cylinder, a fixed baffle is fixedly connected to the grinding workbench, a limiting sliding rod is slidably connected through the fixed baffle, a transmission wedge baffle is fixedly connected to one end of the limiting sliding rod close to the rotating cylinder, the transmission wedge baffle is wedge-shapedly matched with the extrusion wedge plate, and a needle mounting block is fixedly connected to the transmission wedge baffle.

[0009] Preferably, a grinding needle is rotatably connected to the needle mounting block, a control connecting rod is fixedly connected inside the grinding needle, the control connecting rod is rotatably connected to the needle mounting block, deflection sliding rods are fixedly connected at both ends of the control connecting rod, a connecting curved plate is fixedly connected to the side of the fixed baffle close to the rotating cylinder, and the connecting curved plate is slidably connected to the transmission wedge-shaped baffle.

[0010] Preferably, the connecting curved plate is fixedly connected with symmetrically distributed deflection slides, the deflection slides are slidably matched with the connecting curved plate, the deflection slides are provided with multiple inclined surfaces with different slopes, the inclined surfaces on the deflection slides cooperate with the deflection slide rod to make the rotation angle change of the grinding needle the same as the curvature change of the lens to be processed.

[0011] Preferably, a first return spring is wound around the limit sliding rod, the first return spring is connected to the fixed baffle and the transmission wedge baffle, and one end of the limit sliding rod away from the rotating cylinder is fixedly connected to the rotating wedge plate.

[0012] Preferably, a second return spring is wound around the sliding connecting rod, and the second return spring is connected to the sliding connecting rod and the detector fixing frame. The end of the sliding connecting rod away from the rotating cylinder is fixedly connected to a driven wedge plate, and the driven wedge plate is wedge-matched with the rotating wedge plate.

[0013] Preferably, a fixed mounting plate is fixedly connected to the grinding workbench, a liquid outlet pipe is slidably connected through the fixed mounting plate, a transmission wedge block is fixedly connected to the liquid outlet pipe, the transmission wedge block is wedge-shapedly matched with the extrusion wedge plate, a third return spring is wound around the liquid outlet pipe, and the third return spring is connected to the fixed mounting plate and the transmission wedge block.

[0014] Preferably, the wedge-shaped cooperation between the extrusion wedge plate and the transmission wedge-shaped baffle plate makes the distance that the limiting sliding rod moves consistent with the distance that the sliding connecting rod moves due to the wedge-shaped cooperation between the rotating wedge plate and the driven wedge plate, and the wedge-shaped cooperation between the extrusion wedge plate and the transmission wedge-shaped baffle plate makes the distance that the limiting sliding rod moves consistent with the distance that the liquid outlet pipe moves due to the wedge-shaped cooperation between the extrusion wedge plate and the transmission wedge block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention sets a light sensing element and a laser detector and other structures to cooperate, and emits laser to the surface of the lens to be processed through the laser detector to detect the grinding effect of the lens to be processed. After the laser is refracted by the lens to be processed, it is deflected to the light sensing element, and the surface grinding of the lens to be processed at the current radius distance is completed. Then, the light sensing element transmits an electrical signal to the second fixing frame, so that the second fixing frame drives the lens to be processed to move upward for a distance, and continues to process the spherical surface of the next radius distance, so as to achieve the test detection of the spherical surface of the lens to be processed during the grinding process.

[0017] The present invention cooperates with structures such as a rotating knob and a wedge-shaped limit block, and the rotating knob is rotated to drive the rotating crank to rotate synchronously. The transmission connection block is cooperated to make the wedge-shaped limit block slide up and down in the wedge-shaped limit slideway, and the measured distance between the lens to be processed and the photosensitive element is adjusted to the focal length of the lens to be processed after grinding. At the same time, the multi-section inclined surfaces set on the deflection slideway are cooperated to adjust the deflection angle of the grinding needle when grinding the surface of the lens to be processed. By replacing the deflection slideway and adjusting the height of the photosensitive element, the device can process lenses with different focal lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 A half-section schematic diagram of the driving structure of the present invention;

[0020] Figure 3 It is an exploded diagram of the adjustment structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the connection of the grinding device of the present invention;

[0022] Figure 5 This is a schematic diagram of the grinding structure of the present invention;

[0023] Figure 6 It is a schematic diagram of the connection between the deflection slideway and the deflection slide rod of the present invention;

[0024] Figure 7 It is a schematic diagram of the detection device of the present invention;

[0025] Figure 8 It is a schematic diagram of the cooling pipeline of the present invention.

[0026] In the figure: 100, bottom bracket; 101, grinding workbench; 102, first fixed frame; 200, rotating cylinder; 201, telescopic mounting cylinder; 202, extruding wedge plate; 203, rotating motor; 204, telescopic push rod; 205, second fixed frame; 206, limit connecting shaft; 300, lens to be processed; 400, light sensing element; 401, wedge-shaped limit block; 402, wedge-shaped limit slideway; 403, transmission connection block; 404, rotating crank; 405, rotating knob; 500, fixed baffle; 501, limit sliding rod; 50 2. Transmission wedge baffle; 503. Needle mounting block; 504. Grinding needle; 505. Control connecting rod; 506. Deflection slide rod; 507. Connecting curved plate; 508. Deflection slideway; 509. First return spring; 510. Rotating wedge plate; 600. Limiting connecting plate; 601. Sliding connecting rod; 602. Detector fixing bracket; 603. Laser detector; 604. Second return spring; 605. Driven wedge plate; 700. Fixed mounting plate; 701. Liquid outlet pipe; 702. Transmission wedge block; 703. Third return spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figures 1 to 8 As shown, the present invention provides a spherical grinding device for self-focusing lens processing, comprising a bottom bracket 100, a first fixing bracket 102 is mounted on the bottom bracket 100, a rotating motor 203 is mounted in the first fixing bracket 102, a rotating cylinder 200 is fixedly connected to the output shaft of the rotating motor 203, a telescopic mounting cylinder 201 is spline-connected in the rotating cylinder 200, and a lens 300 to be processed is mounted in the telescopic mounting cylinder 201;

[0029] The telescopic installation cylinder 201 is threadedly connected with a rotating crank 404, the rotating crank 404 is rotatably connected with a transmission connection block 403, the transmission connection block 403 is rotatably connected with a wedge-shaped limit block 401, and the wedge-shaped limit block 401 is fixedly connected with a light sensing element 400;

[0030] A grinding workbench 101 is fixedly connected to the bottom bracket 100, a limiting connecting plate 600 is fixedly connected to the grinding workbench 101, a sliding connecting rod 601 is slidably connected through the limiting connecting plate 600, and a detector fixing frame 602 is fixedly connected to one end of the sliding connecting rod 601 close to the rotating cylinder 200, and a laser detector 603 is installed in the detector fixing frame 602.

[0031] In the above manner, the operator first rotates the rotating knob 405, so that the rotating crank 404 drives the wedge-shaped limit block 401 to slide up and down through the transmission connection block 403, and adjusts the position of the light sensing element 400 in the telescopic mounting tube 201. Then, the rotating motor 203 is started to drive the rotating tube 200 to rotate, and then the telescopic mounting tube 201 is driven to rotate synchronously, so that the lens 300 to be processed rotates with the rotation of the telescopic mounting tube 201, and the lens 300 to be processed is ground by the grinding device. When the surface processing of the lens 300 to be processed corresponding to the radius distance is completed, the lens 300 to be processed is ground by the grinding device. The laser emitted by the laser detector 603 irradiates the surface of the lens 300 to be processed at a corresponding radial distance. After being refracted by the lens 300 to be processed, the laser is deflected to the photosensitive element 400. Then the photosensitive element 400 receives the light signal and outputs an electrical signal, so that the lens 300 to be processed slides upward, so that the area of ​​the lens 300 to be processed with an increased radial distance is ground. At the same time, the laser detector 603 also changes with the change in the radius of the processing area of ​​the lens 300 to be processed, and laser detection of the processing area is always maintained until the grinding of the lens 300 to be processed is completed.

[0032] like Figure 3 As shown, a rotating knob 405 is fixedly connected to the rotating crank 404 , a wedge-shaped limiting slide 402 is fixedly connected to the inner wall of the telescopic mounting cylinder 201 , a wedge-shaped slide is opened on the wedge-shaped limiting slide 402 , and the wedge-shaped slide of the wedge-shaped limiting slide 402 fits with the wedge-shaped limiting block 401 .

[0033] By adopting the above method, the operator turns the rotating knob 405 to make the rotating crank 404 rotate synchronously, and then the crank of the rotating crank 404 cooperates with the transmission connecting block 403 to make the wedge-shaped limit block 401 drive the photosensitive element 400 to slide up and down. Since the area of ​​the wedge-shaped limit block 401 close to the photosensitive element 400 is small on one side and large on the other side, when the wedge-shaped limit block 401 slides in the slide of the wedge-shaped limit slide 402, it is ensured that the photosensitive element 400 remains horizontal.

[0034] like Figure 1 and 2As shown, the rotating cylinder 200 is connected to a second fixed frame 205 for limited rotation, a telescopic push rod 204 is installed in the second fixed frame 205, the telescopic push rod 204 is fixedly connected to a limited connection shaft 206, the limited connection shaft 206 is connected to the telescopic mounting cylinder 201 for limited rotation, and the light sensing element 400 is electrically connected to the telescopic push rod 204.

[0035] By adopting the above method, the rotating cylinder 200 is driven to rotate by the rotating motor 203, and the rotating cylinder 200 drives the telescopic mounting cylinder 201 to rotate synchronously through the spline connection. At the same time, the second fixed frame 205 and the limit connecting shaft 206 in the rotating cylinder 200 remain stable. When the photosensitive element 400 outputs an electrical signal to the second fixed frame 205, the second fixed frame 205 drives the limit connecting shaft 206 to move upward, thereby causing the telescopic mounting cylinder 201 and the lens 300 to be processed to move upward synchronously.

[0036] like Figure 5 and 6 As shown, a symmetrically distributed extrusion wedge plate 202 is fixedly connected to the outer contour of the telescopic mounting cylinder 201, a fixed baffle plate 500 is fixedly connected to the grinding workbench 101, a limited sliding rod 501 is slidably connected through the fixed baffle plate 500, a transmission wedge baffle plate 502 is fixedly connected to one end of the limited sliding rod 501 close to the rotating cylinder 200, the transmission wedge baffle plate 502 is wedge-matched with the extrusion wedge plate 202, and a needle mounting block 503 is fixedly connected to the transmission wedge baffle plate 502.

[0037] A grinding needle 504 is rotatably connected to the needle mounting block 503, and a control connecting rod 505 is fixedly connected inside the grinding needle 504. The control connecting rod 505 is rotatably connected to the needle mounting block 503, and both ends of the control connecting rod 505 are fixedly connected to deflection slide rods 506. A connecting curved plate 507 is fixedly connected to the side of the fixed baffle 500 close to the rotating cylinder 200, and the connecting curved plate 507 is slidably connected to the transmission wedge baffle 502.

[0038] A symmetrically distributed deflection slide 508 is fixedly connected to the connecting curved plate 507, and the deflection slide 508 is slidably matched with the connecting curved plate 507. The deflection slide 508 is provided with multiple inclined surfaces with different slopes. The inclined surfaces on the deflection slide 508 cooperate with the deflection slide rod 506 to make the rotation angle change of the grinding needle 504 the same as the curvature change of the lens 300 to be processed.

[0039] By adopting the above-mentioned method, the extrusion wedge plate 202 is driven to move upward by the telescopic installation cylinder 201, and the wedge shape of the extrusion wedge plate 202 and the transmission wedge baffle 502 cooperates, so that the grinding needle 504 slides in the direction away from the rotating cylinder 200. The relative position relationship between the deflection slide rod 506 and the deflection slideway 508 cooperates with the inclined surface of the deflection slideway 508 to adjust the deflection angle of the control link 505 and the grinding needle 504, so that the deflection angle of the grinding needle 504 is positively correlated with the vertical height of the lens 300 to be processed. The deflection angle of the grinding needle 504 is adjusted to correspond to the surface curvature of the lens 300 to be processed by the multi-section inclined surfaces of the deflection slideway 508, so as to ensure the processing accuracy. At the same time, corresponding to the lenses 300 to be processed with different curvatures, the corresponding deflection slideway 508 is replaced to adapt to them.

[0040] like Figure 5 and 7 As shown, a first return spring 509 is wound around the limiting sliding rod 501 , and the first return spring 509 is connected to the fixed baffle 500 and the transmission wedge baffle 502 . The end of the limiting sliding rod 501 away from the rotating cylinder 200 is fixedly connected to a rotating wedge plate 510 .

[0041] A second return spring 604 is wound around the sliding connecting rod 601, and the second return spring 604 is connected to the sliding connecting rod 601 and the detector fixing frame 602. The end of the sliding connecting rod 601 away from the rotating cylinder 200 is fixedly connected to a driven wedge plate 605, and the driven wedge plate 605 is wedge-matched with the rotating wedge plate 510.

[0042] In the above manner, the wedge plate 202 is squeezed to drive the transmission wedge baffle 502 and the limiting sliding rod 501 to slide in the direction away from the rotating cylinder 200, thereby driving the rotating wedge plate 510 to move synchronously, so that the rotating wedge plate 510 squeezes the driven wedge plate 605 and moves in the direction away from the rotating cylinder 200, so that the sliding connecting rod 601 drives the laser detector 603 to move synchronously, and the distance between the laser detector 603 and the central axis of the lens 300 to be processed in the horizontal direction and the distance between the grinding needle 504 and the central axis of the lens 300 to be processed are kept consistent.

[0043] like Figure 8 As shown, a fixed mounting plate 700 is fixedly connected to the grinding workbench 101, a liquid outlet pipe 701 is slidably connected through the fixed mounting plate 700, a transmission wedge block 702 is fixedly connected to the liquid outlet pipe 701, the transmission wedge block 702 is wedge-matched with the extrusion wedge plate 202, a third return spring 703 is wound around the liquid outlet pipe 701, and the third return spring 703 is connected to the fixed mounting plate 700 and the transmission wedge block 702.

[0044] By adopting the above method, the extrusion wedge plate 202 is driven to slide upward by the telescopic mounting tube 201, and then the extrusion wedge plate 202 extrudes the transmission wedge block 702, so that the liquid outlet pipe 701 is away from the central axis of the lens 300 to be processed, and the horizontal distance between the rotating knob 405 and the central axis of the lens 300 to be processed is kept consistent, so that the processing part is always cooled.

[0045] like Figure 5 , 7 As shown in Figure 8, the wedge-shaped cooperation between the extrusion wedge plate 202 and the transmission wedge baffle plate 502 makes the distance that the limiting sliding rod 501 moves consistent with the distance that the sliding connecting rod 601 moves due to the wedge-shaped cooperation between the rotating wedge plate 510 and the driven wedge plate 605. The wedge-shaped cooperation between the extrusion wedge plate 202 and the transmission wedge baffle plate 502 makes the distance that the limiting sliding rod 501 moves consistent with the distance that the liquid outlet pipe 701 moves due to the wedge-shaped cooperation between the extrusion wedge plate 202 and the transmission wedge block 702.

[0046] By adopting the above-mentioned method, the extrusion wedge plate 202 squeezes the transmission wedge baffle plate 502 and the transmission wedge block 702, so that the movement distances of the limiting sliding rod 501 and the liquid outlet pipe 701 are consistent. At the same time, the limiting sliding rod 501 drives the rotating wedge plate 510 to squeeze the driven wedge plate 605, so that the movement distance of the laser detector 603 away from the rotating cylinder 200 is consistent with the movement distance of the limiting sliding rod 501, so that the laser detector 603, the grinding needle 504 and the liquid outlet pipe 701 are always maintained at the same radius from the central axis of the lens 300 to be processed.

[0047] The working principle and use process of the present invention:

[0048] First, the operator rotates the rotating knob 405 to drive the rotating crank 404 to rotate synchronously, and then drives the wedge-shaped limit block 401 and the photosensitive element 400 to slide up and down through the transmission connection block 403, adjusts the height of the photosensitive element 400, so that the photosensitive element 400 is located at the focal position of the lens 300 to be processed, and installs the lens 300 to be processed in the telescopic installation cylinder 201, and then starts the rotating motor 203 to drive the rotating cylinder 200 and the telescopic installation cylinder 201 to rotate synchronously, so that the lens 300 to be processed contacts with the grinding needle 504, and grinds the surface of the lens 300 to be processed. After the grinding process is completed, the laser light emitted by the laser detector 603 to the lens 300 to be processed is deflected by the lens 300 to be processed and received by the photosensitive element 400, and then the photosensitive element 400 sends an electric signal. The signal is sent to the second fixing frame 205, and then the second fixing frame 205 drives the limiting connecting shaft 206 to move upward for a distance, so that the telescopic mounting cylinder 201 and the lens 300 to be processed move synchronously, and then the extrusion wedge plate 202 squeezes the transmission wedge baffle 502, so that the transmission wedge baffle 502 and the limiting sliding rod 501 move a distance in the direction away from the rotating cylinder 200, and then the needle mounting block 503 and the grinding needle 504 move synchronously, and then the control connecting rod 505 drives the deflection sliding rod 506 to slide on the deflection slide 508 for the same distance. Since the deflection slide 508 is provided with multiple inclined surfaces, the deflection sliding rod 506 is deflected, so that the control connecting rod 505 and the grinding needle 504 are deflected synchronously, so that the grinding needle 504 deflects accordingly according to the change of the surface curvature of the lens 300 to be processed.

[0049] When the rotating wedge plate 510 moves, it drives the rotating wedge plate 510 to move synchronously, so that the rotating wedge plate 510 squeezes the driven wedge plate 605, so that the sliding connecting rod 601, the detector fixing frame 602 and the laser detector 603 move synchronously in the direction away from the rotating cylinder 200 by the same distance as the movement of the limiting sliding rod 501, so that the grinding needle 504 and the laser detector 603 are kept at the same distance from the central axis of the lens 300 to be processed. At the same time, the squeezing wedge plate 202 squeezes the transmission wedge block 702, so that the transmission wedge block 702 drives the liquid outlet pipe 701 to move in the direction away from the rotating cylinder 200 by a distance that is the same as the movement distance of the limiting sliding rod 501, so that the end of the liquid outlet pipe 701 close to the rotating cylinder 200 is consistent with the distance from the central axis of the lens 300 to be processed.

[0050] As the grinding needle 504 completes the surface processing of the lens 300 to be processed, the above steps are repeated until the surface of the lens 300 to be processed is completely ground, and the motor 203 is stopped. If lenses 300 to be processed with different focal points are to be processed, the vertical height of the photosensitive element 400 is adjusted so that the distance between the photosensitive element 400 and the lens 300 to be processed is consistent with the focal length of the lens 300 to be processed, and the corresponding deflection slide 508 is replaced at the same time, so that the grinding process can be targeted at lenses 300 to be processed with different focal lengths.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spherical grinding device for self-focusing lens processing, comprising a bottom bracket (100), characterized in that: A first fixing frame (102) is mounted on the bottom bracket (100), a rotating motor (203) is mounted inside the first fixing frame (102), a rotating cylinder (200) is fixedly connected to the output shaft of the rotating motor (203), a telescopic mounting cylinder (201) is spline-connected inside the rotating cylinder (200), and a lens (300) to be processed is mounted inside the telescopic mounting cylinder (201); The telescopic installation cylinder (201) is threadedly connected with a rotating crank (404), the rotating crank (404) is rotatably connected with a transmission connection block (403), the transmission connection block (403) is rotatably connected with a wedge-shaped limit block (401), and the wedge-shaped limit block (401) is fixedly connected with a light sensing element (400); A grinding workbench (101) is fixedly connected to the bottom bracket (100), a limit connecting plate (600) is fixedly connected to the grinding workbench (101), a sliding connecting rod (601) is slidably connected through the limit connecting plate (600), a detector fixing frame (602) is fixedly connected to one end of the sliding connecting rod (601) close to the rotating cylinder (200), and a laser detector (603) is installed in the detector fixing frame (602).

2. The spherical grinding device for self-focusing lens processing according to claim 1, characterized in that: The rotating crank (404) is fixedly connected with a rotating knob (405), the inner wall of the telescopic mounting cylinder (201) is fixedly connected with a wedge-shaped limiting slideway (402), the wedge-shaped limiting slideway (402) is provided with a wedge-shaped slideway, and the wedge-shaped slideway of the wedge-shaped limiting slideway (402) is in contact with the wedge-shaped limiting block (401).

3. The spherical grinding device for self-focusing lens processing according to claim 1, characterized in that: A second fixed frame (205) is connected in a limited rotational manner in the rotating cylinder (200), a telescopic push rod (204) is installed in the second fixed frame (205), a limited connection shaft (206) is fixedly connected to the telescopic push rod (204), the limited connection shaft (206) is connected in a limited rotational manner to the telescopic installation cylinder (201), and the light sensing element (400) is electrically connected to the telescopic push rod (204).

4. The spherical grinding device for self-focusing lens processing according to claim 1, characterized in that: The outer contour of the telescopic mounting cylinder (201) is fixedly connected with symmetrically distributed extrusion wedge plates (202); the grinding workbench (101) is fixedly connected with a fixed baffle plate (500); a limited sliding rod (501) is slidably connected through the fixed baffle plate (500); a transmission wedge baffle plate (502) is fixedly connected to one end of the limited sliding rod (501) close to the rotating cylinder (200); the transmission wedge baffle plate (502) is wedge-matched with the extrusion wedge plate (202); and a needle mounting block (503) is fixedly connected to the transmission wedge baffle plate (502).

5. The spherical grinding device for self-focusing lens processing according to claim 4, characterized in that: A grinding needle (504) is rotatably connected to the needle mounting block (503), a control link (505) is fixedly connected inside the grinding needle (504), the control link (505) is rotatably connected to the needle mounting block (503), both ends of the control link (505) are fixedly connected to deflection slide bars (506), a connecting curved plate (507) is fixedly connected to the side of the fixed baffle (500) close to the rotating cylinder (200), and the connecting curved plate (507) is slidably connected to the transmission wedge baffle (502).

6. The spherical grinding device for self-focusing lens processing according to claim 5, characterized in that: The connecting curved plate (507) is fixedly connected with symmetrically distributed deflection slideways (508), the deflection slideways (508) and the connecting curved plate (507) are slidably matched, and the deflection slideways (508) are provided with a plurality of inclined surfaces with different slopes. The inclined surfaces on the deflection slideways (508) cooperate with the deflection slide bar (506) so that the rotation angle change of the grinding needle (504) is the same as the curvature change of the lens (300) to be processed.

7. The spherical grinding device for self-focusing lens processing according to claim 4, characterized in that: A first return spring (509) is wound around the limit sliding rod (501), and the first return spring (509) is connected to the fixed baffle plate (500) and the transmission wedge baffle plate (502). One end of the limit sliding rod (501) away from the rotating cylinder (200) is fixedly connected to a rotating wedge plate (510).

8. The spherical grinding device for self-focusing lens processing according to claim 7, characterized in that: A second return spring (604) is wound around the sliding connecting rod (601), and the second return spring (604) is connected to the sliding connecting rod (601) and the detector fixing frame (602). One end of the sliding connecting rod (601) away from the rotating cylinder (200) is fixedly connected to a driven wedge plate (605), and the driven wedge plate (605) is wedge-matched with the rotating wedge plate (510).

9. The spherical grinding device for self-focusing lens processing according to claim 4, characterized in that: The grinding workbench (101) is fixedly connected with a fixed mounting plate (700), a liquid outlet pipe (701) is slidably connected through the fixed mounting plate (700), a transmission wedge block (702) is fixedly connected with the liquid outlet pipe (701), the transmission wedge block (702) is wedge-matched with the extrusion wedge plate (202), a third return spring (703) is wound around the liquid outlet pipe (701), and the third return spring (703) is connected with the fixed mounting plate (700) and the transmission wedge block (702).

10. The spherical grinding device for self-focusing lens processing according to claim 9, characterized in that: The wedge-shaped cooperation between the extrusion wedge plate (202) and the transmission wedge baffle plate (502) makes the distance that the limit sliding rod (501) moves consistent with the distance that the sliding connecting rod (601) moves due to the wedge-shaped cooperation between the rotating wedge plate (510) and the driven wedge plate (605); the wedge-shaped cooperation between the extrusion wedge plate (202) and the transmission wedge baffle plate (502) makes the distance that the limit sliding rod (501) moves consistent with the distance that the liquid outlet pipe (701) moves due to the wedge-shaped cooperation between the extrusion wedge plate (202) and the transmission wedge block (702).

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