CN211540620U

CN211540620U - High-precision lens grinding machine

Info

Publication number: CN211540620U
Application number: CN201922497208.XU
Authority: CN
Inventors: 陈萩林; 王新伟; 钟家跃
Original assignee: Nanjing Dongkeda Photoelectric Technology Co ltd
Current assignee: Nanjing Dongkeda Photoelectric Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-22
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a high accuracy lens grinds bed, its anchor clamps that include frame, set up the grinding device in the frame and be used for the lens of centre gripping, one side that lies in anchor clamps in the frame is equipped with the support, the support upper level is equipped with laser emitter, laser emitter's light and the coaxial setting of anchor clamps, be equipped with the through-hole that supplies laser to pass anchor clamps on the anchor clamps, one side that lies in anchor clamps in the frame and keeps away from laser emitter is equipped with the mark target, be equipped with the positioning groove who waits big with laser on the mark target, positioning groove and the coaxial setting of anchor clamps. The utility model discloses have the effect of fixing a position fast to the lens.

Description

High-precision lens grinding machine

Technical Field

The utility model relates to a lens grinds quick-witted field, more specifically says that it relates to a high accuracy lens grinding machine.

Background

The lens is one of the indispensable parts on various electronic products such as optical instrument, high definition camera, and the lens need use equipment such as polisher, grinder to process in the production process.

As shown in fig. 6, an outer circumference grinding machine for a lens includes a jig 5 for holding the lens, and a grinding wheel 23 for grinding the lens. In the polishing process, the lens and the clamp 5 rotate together, and the grinding wheel 23 is continuously close to and abutted against the outer circular surface of the lens. When the rotation axis of the lens is not coaxial with the rotation axis of the clamp 5, the lens rotates around the axis of the clamp 5 at the moment, so that the grinding wheel cannot grind the lens into a round shape. And the centre of a circle of the lens can not be adjusted to the axis of the clamp by human eyes, so that certain errors always exist, multiple times of calibration are needed, and a large amount of time is wasted in positioning the lens.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a high accuracy lens grinding bed, its advantage is, the adjustment lens that can be quick for the centre of a circle of lens falls on the axis of anchor clamps.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a high accuracy lens grinds bed, includes the frame, sets up the anchor clamps of the grinding device in the frame and the lens that is used for the centre gripping, one side that lies in anchor clamps in the frame is equipped with the support, the support is improved level and is equipped with laser emitter, laser emitter's light and the coaxial setting of anchor clamps, be equipped with the through-hole that supplies laser to pass anchor clamps on the anchor clamps, one side that lies in anchor clamps in the frame and keeps away from laser emitter is equipped with the mark target, be equipped with the positioning groove big with laser etc. on the mark target, positioning groove and the coaxial setting of anchor.

Through the technical scheme, the lens on the optical instrument has a certain radian, and laser emitted by the laser emitter irradiates on the lens. When the laser is aligned to the center of the lens, the light rays are not refracted, so that the light rays can fall into the positioning groove; when the laser is irradiated on the lens without aligning with the center of the lens, the laser is refracted at the moment so as to deviate from the positioning groove. Laser and the coaxial setting of anchor clamps utilize the principle that light crosses the lens centre of a circle and can not take place refraction to can the quick adjustment lens, shorten the time of location lens.

The utility model discloses further set up to: the polishing machine is characterized in that a slide rail is horizontally arranged on the rack, the polishing device is connected to the slide rail in a sliding mode, a positioning device is arranged on the fixture and comprises a contact block fixed on the positioning block and a positioning rod fixed on the fixture along the radial direction of the fixture, and a positioning sleeve is connected to the positioning rod in a threaded mode.

Through above-mentioned technical scheme, when the contact block touches the position sleeve, grinding device will not continue to remove this moment, plays spacing effect to grinding device's feed volume. The positioning sleeve is rotated and slides on the positioning rod, and the positioning sleeve and the positioning rod are both provided with sizes, so that the feeding amount of the polishing device can be accurately controlled, and the processing precision is improved.

The utility model discloses further set up to: the upper surface of the clamp is fixedly provided with a positioning seat, and the positioning rod is connected in the positioning seat in a sliding manner.

Through above-mentioned technical scheme, when the diameter change of lens is too big, when exceeding the accommodation range of position sleeve, slide the locating lever, carry out adjustment on a large scale.

The utility model discloses further set up to: the grinding device comprises a sliding plate connected to the sliding rail in a sliding mode, a grinding wheel arranged on the sliding plate and a driving motor fixed on the sliding plate and used for driving the grinding wheel to rotate, the axis of the grinding wheel is parallel to the axis of the clamp, and a driving piece used for driving the sliding plate to move on the sliding rail is arranged on the rack.

Through above-mentioned technical scheme, driving motor is used for driving the emery wheel and rotates, and the emery wheel rotates relative friction between in-process and the lens, and then plays the effect of polishing to the lens. The driving piece is used for driving the sliding plate to automatically move, and the automatic feeding effect of the grinding wheel is achieved.

The utility model discloses further set up to: the fixture comprises a first clamping rod and a second clamping rod, the through hole penetrates through the first clamping rod and the second clamping rod, a first fixing seat and a second fixing seat are fixedly arranged on the rack, the first clamping rod and the second clamping rod are respectively connected in the first fixing seat and the second fixing seat in a rotating mode, an L-shaped shifting rod is connected to the first fixing seat in a rotating mode, a sliding block connected to the first fixing seat in a sliding mode is arranged on the shell of the first clamping rod, a rotary disc is fixedly arranged at one end, close to the first fixing seat, of the shifting rod, a shifting column is arranged on the rotary disc in an eccentric mode along the axial direction of the rotary disc, a sliding groove is vertically formed in the sliding block, the shifting column is inserted into the sliding groove, the first clamping rod is rotatably connected to the sliding block, and a limiting part used for locking the shifting rod is further arranged on the first.

Through above-mentioned technical scheme, first fixing base is used for spacing first clamping bar, and the second fixing base is used for spacing second clamping bar. The lens is located between first clamping bar and the second clamping bar, when first clamping bar sets up the removal to the direction of second clamping bar, grasps the lens this moment to play the effect of fixed lens. The driving lever is rotated to drive the turntable to rotate, the driving column on the turntable drives the sliding block to move, and when the first clamping rod and the second clamping rod clamp the lens tightly, the first clamping rod is prevented from being separated from the lens through the locking of the limiting part.

The utility model discloses further set up to: the second fixing base comprises a fixing portion and a movable portion, a lock rod is hinged to the fixing portion, and a lock block used for fixing the movable portion on the fixing portion is connected to the lock rod in a threaded mode.

Through above-mentioned technical scheme, the second fixing base comprises two parts, is convenient for change the second clamping bar like this, to different lenses, needs to change different second clamping bars, and the quick replacement second clamping bar of being convenient for is provided for to the aforesaid.

The utility model discloses further set up to: all be equipped with the V-arrangement groove on the face of the mutual butt joint of fixed part and movable part, be equipped with the oil groove along the length direction of second clamping bar on the fixed part, the oil groove with V-arrangement groove intercommunication.

Through above-mentioned technical scheme, because the second clamping bar needs to rotate, the oil groove is used for placing the butter, the butter and the surface contact of second clamping bar to reduce the frictional force between the surface of second clamping bar and V-arrangement groove.

The utility model discloses further set up to: and a baffle is arranged between the two clamps on the rack and is rotatably connected to the rack along the axis direction parallel to the clamps.

Through above-mentioned technical scheme, the process of polishing can produce the abrasive dust to the in-process of polishing needs the coolant liquid, and the baffle is used for preventing that coolant liquid and abrasive dust from splashing. The baffle is connected on the frame in a rotating mode, so that the baffle cannot be taken.

To sum up, the utility model discloses following beneficial effect has:

1. the laser emitter and the target are arranged, so that the lens can be conveniently and quickly adjusted to be coaxial with the clamp;

2. the arrangement of the positioning device is convenient for accurately controlling the feeding amount of the grinding wheel;

3. the oil groove is arranged, so that the second clamping rod is lubricated, and the friction force between the second clamping rod and the second fixing seat is reduced.

Drawings

Fig. 1 is an overall configuration diagram of the present embodiment.

Fig. 2 is a schematic structural diagram of the polishing device, the positioning device and the clamp of the embodiment.

Fig. 3 is a schematic structural diagram of the fixture, the laser emitter and the target of the embodiment.

Fig. 4 is an exploded view of the first fixing base of the present embodiment.

Fig. 5 is an exploded view of the second fixing base of the present embodiment.

Fig. 6 is a schematic diagram of a prior art structure.

Reference numerals: 1. a frame; 2. a polishing device; 21. a slide rail; 22. a slide plate; 23. a grinding wheel; 24. a connecting seat; 25. a belt pulley; 26. a hydraulic cylinder; 27. a drive motor; 3. a laser transmitter; 31. a support; 32. a target; 33. a positioning groove; 4. a positioning device; 41. positioning a rod; 42. a positioning sleeve; 43. positioning seats; 44. a contact block; 45. a splint; 5. a clamp; 50. a through hole; 51. a first clamping bar; 52. a second clamping bar; 53. a slider; 531. a chute; 6. a first fixed seat; 61. a slide chamber; 62. a deflector rod; 63. a turntable; 64. column shifting; 65. a limiting member; 66. a guide sleeve; 7. a second fixed seat; 71. a fixed part; 72. a movable portion; 73. a lock lever; 74. a locking block; 75. locking the groove; 76. a V-shaped groove; 77. an oil sump; 78. a driving gear; 79. a driven gear; 8. and a baffle plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): referring to fig. 1 and 2, a high-precision lens grinding machine includes a frame 1, a grinding device 2 disposed on the frame 1, and a clamp 5 for clamping a lens, wherein the lens is fixed on the clamp 5, and then the grinding device 2 grinds an outer cylindrical surface of the lens. One end that lies in anchor clamps 5 on frame 1 is equipped with support 31, is equipped with laser emitter 3 on the support 31, and the through-hole 50 that supplies laser to pass through is seted up along the length direction of anchor clamps 5 on the anchor clamps 5, and the one side of keeping away from support 31 that lies in anchor clamps 5 on frame 1 is equipped with mark target 32, is equipped with positioning groove 33 (refer to fig. 3) on the mark target 32, and positioning groove 33 and the laser that laser emitter 3 sent are on same straight line, and laser and the coaxial setting of anchor clamps 5. Because the lens is not a plano-optic lens, when the circle center of the lens is on the same straight line with the laser emitted by the laser emitter 3, the laser cannot be refracted, and therefore the laser can irradiate in the positioning groove 33; otherwise, the laser is refracted, so that the laser cannot be aligned with the positioning groove 33, and the position of the lens needs to be adjusted, so that the lens can be quickly adjusted to be coaxial with the clamp 5.

Referring to fig. 2, a slide rail 21 is horizontally arranged on the machine frame 1 along the radial direction of the fixture 5, the polishing device 2 includes a slide plate 22 slidably arranged on the slide rail 21, a driving motor 27 and a grinding wheel 23 fixed on the slide plate 22, a connecting seat 24 is further arranged on the slide plate 22, a rotating shaft is coaxially arranged on the grinding wheel 23, the rotating shaft is rotatably connected on the connecting seat 24, the rotating shaft penetrates through the connecting seat 24 and is provided with a belt pulley 25, and the driving motor 27 drives the belt pulley 25 and the grinding wheel 23 to rotate through a belt. When the lens is fixed, the grinding wheel 23 rotates and the sliding plate 22 slides on the sliding rail 21, so as to continuously contact with the lens, thereby polishing the lens. The frame 1 is provided with a driving member for driving the sliding plate 22 to move. The driving part is a hydraulic cylinder 26, and a piston rod of the hydraulic cylinder 26 is fixedly connected with the sliding plate 22.

Referring to fig. 2 and 3, the jig 5 is provided with a positioning device 4, and the positioning device 4 is used for limiting the feed amount of the grinding wheel 23. The positioning device 4 comprises a positioning seat 43 fixed on the fixture 5, a positioning rod 41 connected in the positioning seat 43 in a sliding manner, and a contact block 44 fixed on the connecting seat 24, wherein the positioning rod 41 is horizontally arranged along a direction perpendicular to the axis of the fixture 5. When contact block 44 abuts locating rod 41, grinding wheel 23 will no longer move, thereby preventing grinding wheel 23 from being over ground. One end of the positioning rod 41 close to the contact block 44 is in threaded connection with a positioning sleeve 42, and scales are arranged on the positioning rod 41 and the positioning sleeve 42, so that the feeding amount of the grinding wheel 23 can be accurately controlled. The positioning seat 43 is provided with the clamping plate 45, the clamping plate 45 is used for fixing the positioning rod 41 on the positioning seat 43, the positioning rod 41 can slide in the positioning seat 43, when the diameter change of the lens exceeds the adjusting range of the positioning sleeve 42, the clamping plate 45 is removed, the positioning rod 41 is slid, the position of the positioning rod 41 is adjusted greatly, and the positioning rod 41 is ensured to play a positioning role all the time.

Referring to fig. 3 and 4, the clamp 5 includes a first clamping bar 51 and a second clamping bar 52 coaxially disposed, and the lens is fixed between the first clamping bar 51 and the second clamping bar 52, and the through hole 50 penetrates both the first clamping bar 51 and the second clamping bar 52. The frame 1 is provided with a first fixed seat 6 and a second fixed seat 7, the first clamping rod 51 is slidably arranged in the first fixed seat 6 and can rotate in the first fixed seat 6, and the second clamping rod 52 is rotatably connected in the second fixed seat 7. When the first clamping bar 51 approaches in the direction of the second clamping bar 52, the lens is clamped. Rotate the driving lever 62 of connecting the L-shaped on first fixing base 6, the horizontal segment of driving lever 62 rotates and connects on first fixing base 6, fixedly sets up coaxial carousel 63 at the horizontal segment of driving lever 62, and the axial and eccentric welding that follows carousel 63 on the carousel 63 has a post 64 of dialling, and the cover is equipped with slider 53 on the first clamping bar 51, and slider 53 is the cuboid, sets up smooth chamber 61 in the first fixing base 6, and slider 53 slides and sets up in the smooth chamber 61. The sliding block 53 is also vertically provided with a sliding groove 531, and the shifting column 64 is inserted in the sliding groove 531. The shifting rod 62 is rotated, the shifting rod 62 drives the rotating disc 63 to rotate, the rotating disc 63 drives the shifting post 64 to rotate, and the shifting post 64 further drives the sliding block 53 to slide in the sliding cavity 61, so that the sliding block 53 is driven to slide back and forth.

Referring to fig. 3 and 4, a guide sleeve 66 is disposed on the first fixing seat 6, a horizontal section of the shift lever 62 is rotatably connected in the guide sleeve 66, a limiting member 65 is connected to the horizontal section of the shift lever 62 by a screw thread, and the limiting member 65 is specifically a nut. When screwing the nut, the nut supports tightly on the guide sleeve 66, so that the turntable 63 supports against the side wall of the first fixed seat 6, the turntable 63 is limited to rotate, the sliding block 53 is further prevented from sliding, and the lens is clamped all the time. The first holder 6 is divided horizontally into two halves from the middle and fixedly connected to each other by bolts, so that the slider 53 and the first clamping bar 51 are installed.

Referring to fig. 3 and 5, the second fixing base 7 includes a fixing portion 71 fixed on the frame 1 and a movable portion 72 detachably connected to the fixing portion 71, the movable portion 72 is rotatably connected to the fixing portion 71, and a rotation axis of the movable portion 72 is parallel to an axis of the second clamping bar 52. All set up V-arrangement groove 76 on the face that fixed part 71 and movable part 72 butt joint, second clamp lever 52 rotates to be connected in V-arrangement groove 76, articulated on the fixed part 71 have a locking lever 73, threaded connection has a locking piece 74 on the locking lever 73, seted up open-ended locked groove 75 on the movable part 72, when locking lever 73 rotated to vertical, locking lever 73 card was in locked groove 75, rotatory locking piece 74 for locking piece 74 contradicts at the upper surface of movable part 72, thereby fixes movable part 72 on fixed part 71.

Referring to fig. 5, an oil groove 77 is formed in the fixing portion 71 along the length direction of the V-shaped groove 76, the oil groove 77 is communicated with the V-shaped groove 76, the oil groove 77 is used for placing grease, and the grease has a lubricating effect on the second clamping rod 52. The fixed driven gear 79 that sets up of one end of keeping away from first clamping bar 51 on the second clamping bar 52, the internal rotation of frame 1 sets up driving gear 78, sets up the motor on the driving gear 78, realizes first clamping bar 51's rotation through the motor like this, further drives the lens and rotates to can polish automatically the outer disc of lens.

Referring to fig. 1 and 3, a baffle 8 is disposed on the frame 1, and the baffle 8 is located between the first clamping bar 51 and the second clamping bar 52, and is used for shielding grinding generated in the grinding process and preventing cooling liquid from splashing. The baffle 8 is rotatably connected to the frame 1, and the rotation axis is parallel to the first clamping rod 51 or the second clamping rod 52, so that the lens can be taken out and taken away without being influenced.

The implementation principle of the embodiment is as follows: firstly, placing a lens on a clamp 5, coaxially arranging the lens and the clamp, and then starting a laser transmitter 3 to position the lens; after the positioning is finished, the positioning rod 41 and the positioning sleeve 42 are adjusted, and the feeding amount is accurately controlled; and finally, starting the polishing device 2 to polish the lens.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a high accuracy lens grinding machine, includes frame (1), sets up grinding device (2) and anchor clamps (5) that are used for the lens of centre gripping in frame (1), its characterized in that: one side that lies in anchor clamps (5) on frame (1) is equipped with support (31), support (31) are improved level and are equipped with laser emitter (3), the light and the coaxial setting of anchor clamps (5) of laser emitter (3), be equipped with on anchor clamps (5) and supply laser to pass through hole (50) of anchor clamps (5), one side that lies in anchor clamps (5) on frame (1) and keep away from laser emitter (3) is equipped with mark target (32), be equipped with on mark target (32) with laser etc. big positioning groove (33), positioning groove (33) and the coaxial setting of anchor clamps (5).

2. The high precision lens grinding machine of claim 1, wherein: the polishing machine is characterized in that a sliding rail (21) is horizontally arranged on the rack (1), the polishing device (2) is connected to the sliding rail (21) in a sliding mode, a positioning device (4) is arranged on the clamp (5), the positioning device (4) comprises a contact block (44) fixed on a positioning block and a positioning rod (41) fixed on the clamp (5) along the radial horizontal direction of the clamp (5), and a positioning sleeve (42) is connected to the positioning rod (41) in a threaded mode.

3. The high precision lens grinding machine of claim 2, wherein: the upper surface of the clamp (5) is fixedly provided with a positioning seat (43), and the positioning rod (41) is connected in the positioning seat (43) in a sliding manner.

4. The high precision lens grinding machine of claim 3, wherein: the grinding device (2) comprises a sliding plate (22) connected to the sliding rail (21) in a sliding mode, a grinding wheel (23) arranged on the sliding plate (22) and a driving motor (27) fixed to the sliding plate (22) and used for driving the grinding wheel (23) to rotate, the axis of the grinding wheel (23) is parallel to the axis of the clamp (5), and a driving piece used for driving the sliding plate (22) to move on the sliding rail (21) is arranged on the rack (1).

5. The high precision lens grinding machine of claim 1, wherein: the clamp (5) comprises a first clamping rod (51) and a second clamping rod (52), a through hole (50) penetrates through the first clamping rod (51) and the second clamping rod (52), a first fixing seat (6) and a second fixing seat (7) are fixedly arranged on the rack (1), the first clamping rod (51) and the second clamping rod (52) are respectively and rotatably connected in the first fixing seat (6) and the second fixing seat (7), an L-shaped shifting lever (62) is rotatably connected on the first fixing seat (6), a sliding block (53) which is connected in the first fixing seat (6) in a sliding manner is arranged on a shell of the first clamping rod (51), a rotating disc (63) is fixedly arranged at one end, close to the first fixing seat (6), of the shifting lever (62), a shifting column (64) is eccentrically arranged on the rotating disc (63) along the axial direction of the rotating disc (63), a sliding groove (531) is vertically arranged on the sliding block (53), the shifting rod (64) is inserted into the sliding groove (531), the first clamping rod (51) is rotatably connected to the sliding block (53), and a limiting piece (65) used for locking the shifting rod (62) is further arranged on the first fixed seat (6).

6. The high precision lens grinding machine of claim 5, wherein: the second fixing seat (7) comprises a fixing portion (71) and a movable portion (72), the fixing portion (71) is hinged to a lock rod (73), and the lock rod (73) is connected with a lock block (74) in a threaded mode, wherein the movable portion (72) is fixed to the fixing portion (71).

7. The high precision lens grinding machine of claim 6, wherein: all be equipped with V-arrangement groove (76) on the face of fixed part (71) and movable part (72) butt joint each other, fixed part (71) are gone up and are equipped with oil groove (77) along the length direction of second clamping bar (52), oil groove (77) with V-arrangement groove (76) intercommunication.

8. The high precision lens grinding machine of claim 7, wherein: the clamp is characterized in that a baffle (8) is arranged between the two clamps (5) on the rack (1), and the baffle (8) is rotatably connected to the rack (1) along the axis direction parallel to the clamps (5).