CN113912271B

CN113912271B - Be used for accurate positioner of glass aspheric surface lens mould pressing

Info

Publication number: CN113912271B
Application number: CN202111265913.2A
Authority: CN
Inventors: 曾明权; 孙小敏; 谢港; 李忠越; 周兴华; 谢华泽
Original assignee: Jiangxi Gaojia Photoelectric Technology Co ltd
Current assignee: Jiangxi Gaojia Photoelectric Technology Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2023-04-11
Anticipated expiration: 2041-10-28
Also published as: CN113912271A

Abstract

The invention relates to a positioning device, in particular to an accurate positioning device for mould pressing of a glass aspheric lens. The invention aims to provide a precise positioning device for mould pressing of a glass aspheric lens, which is high in safety and precise in discharging. In order to solve the technical problem, the invention provides an accurate positioning device for mould pressing of a glass aspheric lens, which comprises a support frame, a bottom mould, a placing frame, a first fixing block, a first fixing frame and the like, wherein the bottom mould is connected to the right side of the top of the support frame, the placing frame is connected to the left side of the top of the support frame, the first fixing block is connected to the front side and the rear side of the right part of the support frame, and the first fixing frame is connected to the bottom of the first fixing block. According to the invention, the lens blanks can be fed one by one through the matching of the blanking mechanism and the material pushing mechanism, and the blanking is more stable through the material clamping mechanism.

Description

Be used for accurate positioner of glass aspheric surface lens mould pressing

Technical Field

The invention relates to a positioning device, in particular to a precise positioning device for mould pressing of a glass aspheric lens.

Background

In recent years, with increasing market demands for optical glass lenses, a compression molding method is developed rapidly as the most advanced optical glass lens manufacturing technology at present, the method has high production efficiency, and the large-scale production of precision optical glass lenses can be realized in the compression molding method, and the placement of lens blanks has important influence on lens molding.

Through search, the patent publication numbers are: CN211339271U discloses a precision aspheric glass lens molding device, which comprises an upper heating group, a mold, a lower heating group, a mold moving device, a sealing device and a cylinder pressing device, wherein the lower heating group is arranged below the mold and corresponds to the upper heating group; the mould is arranged on the mould moving device, the upper heating group is connected with the cylinder pressurizing device, the upper heating group, the mould, the lower heating group and the mould moving device are all arranged in the closed space of the closed device, the cylinder pressurizing device is arranged in multiple stages, the upper heating group and the lower heating group are also arranged in multiple stages, and the multi-stage cylinder pressurizing device is provided with a cylinder, a two-cylinder or/and a three-cylinder. Above-mentioned patent needs the manual work to place glass material preform on the mould, and when the manual work was got and was put, the moulding-die equipment mistake was operated and is pressed down the people's hand easily, has the potential safety hazard, and artifical blowing is not accurate moreover.

Therefore, the accurate positioning device for mould pressing of the glass aspheric lens is required to be designed, and the device is high in safety and accurate in discharging during discharging.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the defects that when the glass material preform needs to be manually placed on a mold, when the glass material preform is manually taken and placed, a molding device is easy to press down a hand when in misoperation, potential safety hazards exist, and manual material placing is not accurate.

(2) Technical scheme

In order to solve the technical problem, the invention provides an accurate positioning device for mould pressing of a glass aspheric lens, which comprises a support frame, a bottom mould, a placing frame, a first fixed block, a first fixing frame, an extrusion block, a first spring, a material pushing mechanism and a shifting mechanism, wherein the bottom mould is connected to the right side of the top of the support frame, the placing frame is connected to the left side of the top of the support frame, the first fixed block is connected to the front side and the rear side of the right part of the support frame, the first fixing frame is connected to the bottom of the first fixed block, the extrusion block is connected to the first fixing frame in a sliding mode, the first spring is connected between the extrusion block and the first fixing frame, the first spring is sleeved on the outer side of the first fixing frame, the material pushing mechanism for conveying the lens is connected between the placing frame and the support frame, and the shifting mechanism is connected to the front side and the rear side of the right part of the support frame.

Preferably, pushing equipment is including the second fixed block, including a motor, an end cap, a controller, and a cover plate, the link, the third fixed block, first guide bar, first slider and threaded rod, both sides all are connected with the second fixed block around the rack left end, install the motor between the second fixed block of both sides, the right side of support frame is connected with the link, both sides all are connected with the third fixed block around the rack bottom, be connected with two first guide bars between two third fixed blocks and the link, two first guide bar front and back symmetries, slidingtype ground is connected with first slider between two first guide bars, be connected with the threaded rod on the output shaft of motor, the right-hand member rotary type ground of threaded rod is connected on the link, the threaded rod runs through first slider lower part, first slider and threaded rod threaded connection.

Preferably, the toggle mechanism comprises a second guide rod, a sliding frame and a second spring, the second guide rod is connected to the front side and the rear side of the right portion of the support frame, the sliding frame is connected to the second guide rod in a sliding mode, protruding blocks capable of pushing the sliding frame to move are arranged on the front side and the rear side of the lower portion of the first sliding block, the second spring is connected between the sliding frame and the second guide rod, the second spring is sleeved on the outer side of the second guide rod, and the sliding frame moves rightwards to enable the extrusion blocks on the two sides to be close to each other.

Preferably, still include unloading mechanism, unloading mechanism is including the dress material frame, the fourth fixed block, the dwang, the turning block, torsion spring and shifting block, support frame left side top intermediate junction has the dress material frame, the left side middle part of dress material frame is connected with the fourth fixed block, the rigid coupling has the dwang on the fourth fixed block, the turning block is connected with on the dwang with rotating, be connected with torsion spring between turning block and the dwang, first slider top is connected with the shifting block, shifting block and turning block bottom contact cooperation.

Preferably, still including card material mechanism, card material mechanism is including the second mount, the third guide bar, the second slider, third spring and wedge, both ends all are connected with the second mount around the support frame left part, be connected with the third guide bar on the second mount, the cover is equipped with the second slider outside the third guide bar slidingtype, both ends are the inclined plane about the second slider medial surface, be connected with the third spring between second slider and the third guide bar tail end, the third guide bar outside is located to the third spring housing, both sides all are connected with the wedge with second slider contact complex around the first slider left end.

Preferably, still including correction mechanism, correction mechanism is including fifth fixed block, the slide bar, sixth spring and stripper plate, and both sides all are connected with the fifth fixed block around the support frame middle part, all are connected with the slide bar on the fifth fixed block of both sides slidingly, are connected with the sixth spring between slide bar and the fifth fixed block, and the slide bar outside is located to the sixth spring housing, and the one end that the slide bar of both sides is close to each other all is connected with the stripper plate, and the distance between two stripper plates slightly is less than the diameter of lens idiosome.

Preferably, the material taking mechanism comprises a sixth fixed block, a telescopic rod, a connecting block, a seventh spring and an electric sucker, the right end of the support frame is connected with the sixth fixed block, the top of the sixth fixed block is connected with the telescopic rod, the top of the telescopic rod is horizontally connected with the connecting block, the seventh spring is arranged between the connecting block and the telescopic rod, the seventh spring is sleeved on the outer side of the upper part of the telescopic rod, and the electric sucker is installed at the tail end of the connecting block.

Preferably, the bottom of the turning block is in a barb shape, and the barb-shaped part can extend into the inner lower part of the charging frame.

(3) Advantageous effects

1. According to the invention, the lens blanks can be fed one by one through the matching of the blanking mechanism and the material pushing mechanism, the blanking is more stable through the material clamping mechanism, the lenses in the material loading frame are prevented from falling downwards in the feeding process, and the working stability of the device is improved.

2. The sliding frame is driven to move rightwards through the convex block on the first sliding block, so that the extrusion blocks on two sides are driven to mutually approach to fix the lens blank, the lens blank is prevented from moving in the bottom die, and the lens blank is more stable in die pressing.

3. The correcting mechanism can automatically center the lens blank during conveying, can avoid the lens blank from deviating during conveying, effectively improves the accuracy and the stability of feeding, and can avoid the dirt on the surface of the lens without people holding the lens through the material taking mechanism.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic view of a first partial body structure according to the present invention.

FIG. 3 is a schematic view of a second partial body structure according to the present invention.

Fig. 4 is a perspective view of a third embodiment of the present invention.

Fig. 5 is a schematic perspective view of the pushing mechanism of the present invention.

Fig. 6 is a schematic view of a first partially separated body structure of the pushing mechanism of the present invention.

Fig. 7 is a schematic view of a second partial body structure of the pushing mechanism of the present invention.

Fig. 8 is a schematic perspective view of a toggle mechanism of the present invention.

FIG. 9 is a connection diagram of parts of the pushing mechanism and the toggle mechanism according to the present invention.

FIG. 10 is a diagram of the connection between the toggle mechanism and the extrusion block of the present invention.

Fig. 11 is a schematic perspective view of the blanking mechanism of the present invention.

FIG. 12 is an enlarged view of the present invention at A.

Fig. 13 is a schematic perspective view of the material clamping mechanism of the present invention.

Fig. 14 is a schematic partial perspective view of the material clamping mechanism of the present invention.

Fig. 15 is a perspective view of the orthosis of the present invention.

Fig. 16 is a schematic perspective view of a material taking mechanism according to the present invention.

The symbols in the drawings are: 1-support frame, 2-bottom die, 21-placing frame, 3-first fixed block, 4-first fixing frame, 5-extrusion block, 51-first spring, 6-pushing mechanism, 61-second fixed block, 62-motor, 63-connecting frame, 64-third fixed block, 65-first guide rod, 66-first slide block, 67-threaded rod, 7-toggle mechanism, 71-second guide rod, 72-sliding frame, 73-second spring, 8-blanking mechanism, 81-charging frame, 82-fourth fixed block, 83-rotating rod, 84-rotating block, 85-torsion spring, 86-toggle block, 9-clamping mechanism, 91-second fixing frame, 92-third guide rod, 93-second slide block, 94-third spring, 95-wedge block, 10-correcting mechanism, 101-fifth fixed block, 102-sliding rod, 103-sixth spring, 104-extrusion plate, 11-material taking mechanism, 111-sixth fixed block, 112-113-wedge block, 115-seventh spring, 114-electric suction cup.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

An accurate positioning device for mould pressing of a glass aspheric lens is disclosed, as shown in fig. 1-12, and comprises a support frame 1, a bottom mould 2, a placing frame 21, a first fixed block 3, a first fixed frame 4, an extrusion block 5, a first spring 51, a material pushing mechanism 6 and a shifting mechanism 7, wherein the right side of the top of the support frame 1 is connected with the bottom mould 2, the left side of the top of the support frame 1 is connected with the placing frame 21 in a welding connection mode, the front side and the rear side of the right part of the support frame 1 are both connected with the first fixed block 3 in a welding connection mode, the bottom of the first fixed block 3 is connected with the first fixed frame 4, the extrusion block 5 is slidably connected on the first fixed frame 4, the first spring 51 is connected between the extrusion block 5 and the first fixed frame 4 in a lap joint mode, the first spring 51 is sleeved on the outer side of the first fixed frame 4, the material pushing mechanism 6 for conveying the lens is connected between the placing frame 21 and the support frame 1, and the front side and the rear side of the right part of the support frame 1 are both connected with the shifting mechanism 7; the material pushing mechanism 6 comprises a second fixing block 61, a motor 62, a connecting frame 63, a third fixing block 64, first guide rods 65, a first sliding block 66 and a threaded rod 67, the front side and the rear side of the left end of the placing frame 21 are connected with the second fixing block 61 in a welding connection mode, the motor 62 is installed between the second fixing blocks 61 on the two sides in a bolt connection mode, the right side of the supporting frame 1 is connected with the connecting frame 63 in a welding connection mode, the front side and the rear side of the bottom of the placing frame 21 are connected with the third fixing block 64 in a bolt connection mode, two first guide rods 65 are horizontally connected between the two third fixing blocks 64 and the connecting frame 63, the two first guide rods 65 are symmetrical front and back, the first sliding block 66 is connected between the two first guide rods 65 in a sliding mode, the first guide rods 65 penetrate through the first sliding block 66, an output shaft of the motor 62 is connected with the threaded rod 67, the right end of the threaded rod 67 is rotatably connected to the connecting frame 63, the threaded rod 67 penetrates through the lower portion of the first sliding block 66, and the threaded rod 66 is in threaded rod 67; the toggle mechanism 7 comprises a second guide rod 71, a sliding frame 72 and a second spring 73, the front side and the rear side of the right part of the support frame 1 are connected with the second guide rod 71 in a welding connection mode, the second guide rod 71 is horizontally arranged, the sliding frame 72 is sleeved on the outer side of the second guide rod 71 in a sliding mode, the rear part of the sliding frame 72 gradually inclines backwards from left to right, the front side and the rear side of the lower part of the first sliding block 66 are provided with protruding blocks capable of pushing the sliding frame 72 to move, the second spring 73 is connected between the sliding frame 72 and the second guide rod 71 in a lap joint mode, the second spring 73 is sleeved on the outer side of the second guide rod 71, and the sliding frame 72 moves rightwards to drive the extrusion blocks 5 on the two sides to be close together; the blanking mechanism 8 comprises a loading frame 81, a fourth fixing block 82, a rotating rod 83, a rotating block 84, a torsion spring 85 and a shifting block 86, the loading frame 81 is connected in the middle of the top of the left side of the support frame 1, a gap larger than the thickness of a lens blank is reserved between the bottom of the loading frame 81 and the top of the placement frame 21, the middle of the left side of the loading frame 81 is connected with the fourth fixing block 82 in a welding connection mode, the rotating rod 83 is fixedly connected onto the fourth fixing block 82, the rotating block 84 is rotationally connected onto the rotating rod 83, the bottom of the rotating block 84 is in a barb shape, the barb-shaped part can extend into the inner lower part of the loading frame 81, the torsion spring 85 is connected between the rotating block 84 and the rotating rod 83, the top of the first sliding block 66 is connected with the shifting block 86, and the shifting block 86 is in contact fit with the bottom end of the rotating block 84.

When the lens is molded, the device is moved to the lower part of the molding equipment, so that the bottom mold 2 is positioned right below the molding mold, a plurality of lens blanks are stacked and placed in the material loading frame 81, the bottommost lens blank is contacted with the top of the placing frame 21, when the lens blank needs to be fed onto the bottom mold 2, the motor 62 is started to rotate, the motor 62 rotates to drive the threaded rod 67 to rotate, the threaded rod 67 rotates to drive the first sliding block 66 to move rightwards, the first sliding block 66 moves rightwards to push the bottommost lens blank to move rightwards at the top of the placing frame 21, the shifting block 86 also moves rightwards, when the shifting block 86 does not block the rotating block 84, the lower part of the rotating block 84 is driven to swing towards the material loading frame 81 under the action of the torsion spring 85, and the bottom of the rotating block 84 is in a barb shape, therefore, the barb-shaped part extends into the inner lower part of the material loading frame 81 to block other lens blanks, the first sliding block 66 moves rightwards to drive the two sliding frames 72 to move rightwards through the convex blocks on the first sliding block, the second spring 73 stretches, the two sliding frames 72 move rightwards to drive the extrusion blocks 5 on the two sides to approach, the first spring 51 compresses, the lens blanks move to the top of the bottom die 2 at the moment, the extrusion blocks 5 approach to fix the lens blanks, the motor 62 is closed, then the die pressing die is started to mold the lens blanks, after the mold pressing is finished, the motor 62 is started to drive the threaded rod 67 to rotate reversely, the first sliding block 66 moves leftwards, the convex blocks are separated from the sliding frames 72, the sliding frames 72 are driven to reset through the second spring 73, the extrusion blocks 5 are driven to reset through the first spring 51, and then the lenses can be taken out. When the first sliding block 66 is completely reset, the motor 62 is turned off, and at this time, the shifting block 86 presses the lower part of the rotating block 84 to swing in the direction away from the loading frame 81, so that the lens blank continuously falls on the placing frame 21.

Example 2

On the basis of embodiment 1, as shown in fig. 1, 13, 14, 15, and 16, the material clamping device 9 further includes a material clamping mechanism 9, the material clamping mechanism 9 includes a second fixing frame 91, a third guide rod 92, a second slider 93, a third spring 94, and a wedge block 95, the front and rear ends of the left portion of the support frame 1 are connected with the second fixing frame 91 through bolts, the middle portion of the second fixing frame 91 is connected with the third guide rod 92 through welding, the outer side of the third guide rod 92 is slidably sleeved with the second slider 93, the left and right ends of the inner side of the second slider 93 are both inclined surfaces, the third spring 94 is connected between the tail ends of the second slider 93 and the third guide rod 92, the third spring 94 is sleeved on the outer side of the third guide rod 92, and the front and rear sides of the left end of the first slider 66 are both connected with the wedge block 95 in contact fit with the second slider 93 through welding.

When the first sliding block 66 moves rightwards, the wedge block 95 moves rightwards along with the first sliding block, when the inclined surface of the wedge block 95 is in contact with the inclined surface on the second sliding block 93, the first sliding block 66 continues to move rightwards, the second sliding blocks 93 on the two sides are pushed to be away from each other through the wedge block 95, the second sliding blocks 93 slide on the third guide rods 92, the third springs 94 stretch, when the wedge block 95 moves rightwards and is separated from the second sliding blocks 93, the second sliding blocks 93 on the two sides are driven to reset under the action of the third springs 94, the lens blanks in the material loading frame 81 are blocked after the second sliding blocks 93 reset, therefore, the lens blanks in the material loading frame 81 can be prevented from falling downwards, when the wedge block 95 resets leftwards, the wedge block 95 pushes the second sliding blocks 93 on the two sides to be away from each other again, and when the first sliding block 66 resets, the lens blanks in the material loading frame 81 fall on the placing rack 21.

Still including correction mechanism 10, correction mechanism 10 is including fifth fixed block 101, slide bar 102, sixth spring 103 and stripper plate 104, both sides all are connected with fifth fixed block 101 through welded connection's mode around the support frame 1 middle part, all run through type sliding connection has slide bar 102 on the fifth fixed block 101 of both sides, be connected with sixth spring 103 between slide bar 102 and the fifth fixed block 101, the slide bar 102 outside is located to sixth spring 103 cover, the one end that both sides slide bar 102 is close to each other all is connected with stripper plate 104 through welded connection's mode, distance between two stripper plates 104 slightly is less than the diameter of lens idiosome.

When the first sliding block 66 moves rightwards to drive the lens blank to move rightwards, when the lens blank passes between the extrusion plates 104 on two sides, because the distance between the two extrusion plates 104 is slightly smaller than the diameter of the lens blank, the extrusion plates 104 on two sides of the outer edge of the lens blank are far away from each other, the lens blank can be automatically centered through the sixth spring 103, the lens blank can be prevented from deviating during conveying, and the feeding accuracy and stability are effectively improved.

Still including extracting mechanism 11, extracting mechanism 11 is including sixth fixed block 111, telescopic link 112, connecting block 113, seventh spring 114 and electric chuck 115, the right-hand member of support frame 1 is connected with sixth fixed block 111 through welded connection's mode, the mode that sixth fixed block 111 top passes through threaded connection is connected with telescopic link 112, telescopic link 112 top horizontally connected has connecting block 113, be equipped with seventh spring 114 between connecting block 113 and the telescopic link 112, seventh spring 114 cover is established in the upper portion outside of telescopic link 112, electric chuck 115 is installed to connecting block 113 tail end.

After the lens compression molding, artifical rotation connecting block 113 anticlockwise rotation 90 degrees, make electric chuck 115 be located the top of shaping lens, push down connecting block 113, seventh spring 114 compression, electric chuck 115 and lens contact, start electric chuck 115 and hold the lens, then loosen connecting block 113, effect at seventh spring 114 drives connecting block 113, electric chuck 115 and lens rebound, it resets to rotate connecting block 113 clockwise rotation 90 degrees, place the below at electric chuck 115 with the container, close electric chuck 115, the lens drops downwards in collecting container, so can need not people to hold the lens by hand, avoid the lens surface to produce the dirt.

The above-mentioned embodiments only express the preferred embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as the limitation of the scope of the present invention. It should be noted that various changes, modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, and all are intended to be included within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The accurate positioning device for mould pressing of the glass aspheric lens comprises a support frame (1), a bottom mould (2) and a placing frame (21), wherein the bottom mould (2) is connected to the right side of the top of the support frame (1), the placing frame (21) is connected to the left side of the top of the support frame (1), the accurate positioning device is characterized by further comprising a first fixing block (3), a first fixing frame (4), an extrusion block (5), a first spring (51), a material pushing mechanism (6) and a shifting mechanism (7), the front side and the rear side of the right part of the support frame (1) are respectively connected with the first fixing block (3), the bottom of the first fixing block (3) is connected with the first fixing frame (4), the extrusion block (5) is slidably connected on the first fixing frame (4), the first spring (51) is connected between the extrusion block (5) and the first fixing frame (4), the first spring (51) is sleeved on the outer side of the first fixing frame (4), the material pushing mechanism (6) for conveying the lens is connected between the placing frame (21) and the support frame (1), and the front side and rear side of the right part of the support frame (1) are respectively connected with the shifting mechanism (7); the pushing mechanism (6) comprises a second fixed block (61), a motor (62), a connecting frame (63), a third fixed block (64), first guide rods (65), a first sliding block (66) and a threaded rod (67), the front side and the rear side of the left end of the placing frame (21) are connected with the second fixed block (61), the motor (62) is installed between the second fixed blocks (61) on the two sides, the right side of the supporting frame (1) is connected with the connecting frame (63), the front side and the rear side of the bottom of the placing frame (21) are connected with the third fixed block (64), two first guide rods (65) are connected between the two third fixed blocks (64) and the connecting frame (63), the two first guide rods (65) are symmetrical front and rear, the first sliding block (66) is connected between the two first guide rods (65) in a sliding manner, the threaded rod (67) is connected onto an output shaft of the motor (62), the right end of the threaded rod (67) is rotatably connected onto the connecting frame (63), the threaded rod (67) penetrates through the lower portion of the first sliding block (66) and is in threaded connection with the threaded rod (67); the toggle mechanism (7) comprises a second guide rod (71), a sliding frame (72) and a second spring (73), the front side and the rear side of the right part of the support frame (1) are respectively connected with the second guide rod (71), the sliding frame (72) is connected on the second guide rod (71) in a sliding mode, protruding blocks capable of pushing the sliding frame (72) to move are arranged on the front side and the rear side of the lower part of the first sliding block (66), the second spring (73) is connected between the sliding frame (72) and the second guide rod (71), the second spring (73) is sleeved on the outer side of the second guide rod (71), and the sliding frame (72) moves rightwards to drive the extrusion blocks (5) on the two sides to be close to each other.

2. The accurate positioning device for mould pressing of the glass aspheric lens according to claim 1, characterized by further comprising a blanking mechanism (8), wherein the blanking mechanism (8) comprises a loading frame (81), a fourth fixing block (82), a rotating rod (83), a rotating block (84), a torsion spring (85) and a shifting block (86), the loading frame (81) is connected to the middle of the top of the left side of the support frame (1), the fourth fixing block (82) is connected to the middle of the left side of the loading frame (81), the rotating rod (83) is fixedly connected to the fourth fixing block (82), the rotating block (84) is rotatably connected to the rotating rod (83), the torsion spring (85) is connected between the rotating block (84) and the rotating rod (83), the shifting block (86) is connected to the top of the first sliding block (66), and the shifting block (86) is in contact fit with the bottom end of the rotating block (84).

3. The accurate positioning device for mould pressing of the glass aspheric lens as claimed in claim 2, further comprising a material clamping mechanism (9), wherein the material clamping mechanism (9) comprises a second fixing frame (91), a third guide rod (92), a second sliding block (93), a third spring (94) and a wedge block (95), the front end and the rear end of the left portion of the support frame (1) are both connected with the second fixing frame (91), the second fixing frame (91) is connected with the third guide rod (92), the outer side of the third guide rod (92) is slidably sleeved with the second sliding block (93), the left end and the right end of the inner side of the second sliding block (93) are both inclined planes, the third spring (94) is connected between the tail ends of the second sliding block (93) and the third guide rod (92), the third spring (94) is sleeved on the outer side of the third guide rod (92), and the front side and rear side of the left end of the first sliding block (66) are both connected with the wedge block (95) in contact fit with the second sliding block (93).

4. The accurate positioning device for mould pressing of the glass aspheric lens according to claim 3, characterized by further comprising a correcting mechanism (10), wherein the correcting mechanism (10) comprises a fifth fixing block (101), a sliding rod (102), a sixth spring (103) and extrusion plates (104), the fifth fixing block (101) is connected to the front side and the rear side of the middle part of the support frame (1), the sliding rod (102) is connected to the fifth fixing block (101) at both sides in a sliding manner, the sixth spring (103) is connected between the sliding rod (102) and the fifth fixing block (101), the sixth spring (103) is sleeved outside the sliding rod (102), the extrusion plates (104) are connected to the mutually close ends of the sliding rods (102) at both sides, and the distance between the two extrusion plates (104) is slightly smaller than the diameter of the lens blank.

5. The accurate positioning device for mould pressing of the glass aspheric lens as claimed in claim 4, further comprising a material taking mechanism (11), wherein the material taking mechanism (11) comprises a sixth fixed block (111), an expansion link (112), a connecting block (113), a seventh spring (114) and an electric suction cup (115), the sixth fixed block (111) is connected to the right end of the support frame (1), the expansion link (112) is connected to the top of the sixth fixed block (111), the connecting block (113) is horizontally connected to the top of the expansion link (112), the seventh spring (114) is arranged between the connecting block (113) and the expansion link (112), the seventh spring (114) is sleeved on the outer side of the upper portion of the expansion link (112), and the electric suction cup (115) is installed at the tail end of the connecting block (113).

6. The device for accurately positioning the mold pressing of the glass aspheric lens as claimed in claim 2, wherein the bottom of the rotating block (84) is in the shape of a barb, and the barb extends into the lower inner portion of the loading frame (81).