CN214721214U

CN214721214U - Multi-thread grinding machine for optical lens

Info

Publication number: CN214721214U
Application number: CN202022123171.7U
Authority: CN
Inventors: 姚程
Original assignee: Changzhou Changguang Optical Instrument Co ltd
Current assignee: Changzhou Changguang Optical Instrument Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-11-16
Anticipated expiration: 2030-09-24

Abstract

The utility model relates to an optical lens multi-thread grinds machine, the on-line screen storage device comprises a base, the top of base be provided with and be used for installing fixed smooth workstation, its characterized in that: the optical lens assembling device is characterized in that two elastic collet chucks are oppositely arranged above the workbench, the two elastic collet chucks are respectively a first elastic collet chuck for detachably fixing the optical lens A and a second elastic collet chuck for detachably fixing the optical lens B, the first elastic collet chuck is connected with one end of a guide rod through an installation cylinder, the other end of the guide rod penetrates through the guide cylinder and is movably connected with the guide cylinder, a lifting rod connected with the guide cylinder into a whole is arranged at the bottom of the guide cylinder, and the lifting rod is vertically and movably connected to the top of the workbench. The design has the advantages of simple structure, easy manufacture, practicality and high efficiency.

Description

Multi-thread grinding machine for optical lens

Technical Field

The utility model relates to an optical lens grinds technical field, specificly relates to an optical lens multi-thread grinds machine.

Background

Optical lenses are typically machined from aluminum 6061, 2a12, etc., and finally require multiple threads of different leads to match the focal length zoom. Multiple start threads are also understood to mean multiple curves that fit together. The lens is divided into an inner barrel (optical lens A) and an outer barrel (optical lens B), wherein inner and outer multi-thread threads are respectively machined on a machine tool on the inner barrel and the outer barrel, but the threads machined by the machine tool are not concentric when the multi-thread threads are matched and rotated due to a plurality of errors of the machine tool, a clamp, a part body, a worker clamping and the like, so that the multi-thread threads are matched and in interference fit when being machined, and then are manually ground, so that the workload is large.

Disclosure of Invention

The utility model provides an optical lens multi-thread grinding machine replaces the manual work to grind through multi-thread grinding machine, has not only improved the grinding precision, but also has improved machining efficiency greatly.

For solving foretell technical problem, the utility model provides an optical lens multi-thread grinds machine, the on-line screen storage device comprises a base, the top of base be provided with and be used for installing fixed smooth workstation, its characterized in that: the upper part of the workbench is also oppositely provided with two elastic collet chucks which are respectively a first elastic collet chuck for detachably fixing an optical lens A and a second elastic collet chuck for detachably fixing an optical lens B, the first elastic collet chuck consists of a first inner clamp and a first outer clamp, the first outer clamp is cylindrical, the first inner clamp consists of a first head clamp part, a first guide part, a first thread part and a first fixing part which are sequentially connected into a whole from left to right, a first connecting thread matched with the first thread part is arranged inside the first outer clamp, the first head clamp part, the first guide part and two opposite sides of the first thread part are provided with through notches, a first internal connecting thread for connecting the optical lens A is also arranged inside the first head clamp part, and a first external connecting thread is arranged outside the first fixing part, the first fixing part is detachably connected into the installation cylinder through a first external thread, one side of the installation cylinder far away from the first fixing part is connected with one end of the guide rod into a whole, the other end of the guide rod penetrates through the guide cylinder and is movably connected with the guide cylinder, the bottom of the guide cylinder is provided with a lifting rod connected with the guide cylinder into a whole, the lifting rod is vertically and movably connected with the top of the workbench, the outer side of the guide rod between the installation cylinder and the guide cylinder is also provided with a first spring in a surrounding manner, two ends of the first spring are respectively connected with the installation cylinder and the guide cylinder, the second elastic collet chuck is detachably connected with one end of a transmission shaft, the other end of the transmission shaft is connected with a detection shaft through a first coupler, the detection shaft penetrates through a torsion sensor and is connected with a servo motor through a second coupler, and the servo motor is installed on one side of the vertically placed installation plate, the torque sensor is detachably arranged on the workbench, a display screen electrically connected with the torque sensor is arranged at the top of the torque sensor, and a hand wheel is sleeved on the transmission shaft.

Further: the outer side of the first outer clamp is provided with a first holding rod, and the outer side of the first fixing part is also provided with a second holding rod.

And further: the transmission shaft pass two second guide holders in proper order, transmission shaft and second guide holder between be provided with the bearing, the second guide holder install the top at the workstation through the fixing base of its bottom, the top of workstation offer the screw hole that is used for installing fixing base and mounting panel.

And further: the second elastic collet chuck comprises a second outer clamp and a second inner clamp, the second inner clamp is formed by sequentially connecting a second head clamp part, a second guide part and a second fixing part into a whole from left to right, two opposite sides of the second head clamp part are provided with notches penetrating through the second head clamp part, the second guide part is provided with a second threaded part, the second outer clamp is internally provided with a second connecting thread matched with the second threaded part, one end of the second outer clamp is internally provided with a limiting part for compressing the second head clamp part, the second head clamp part is internally provided with a second internal thread for connecting an optical lens B, one end of the transmission shaft, far away from the first coupler, is provided with a connecting hole matched with the second fixing part, the second fixing part extends into the connecting hole, and the outer wall of the transmission shaft is also provided with a locking threaded hole, the locking threaded hole is internally connected with a puller bolt, the puller bolt penetrates through the locking threaded hole to be in contact with the second fixing part, and the second fixing part is fixed in the connecting hole through friction force between the puller bolt and the second fixing part.

And further: the top of workstation be provided with the second mount pad that is used for connecting the lifter, the lower extreme of lifter connect in the second mount pad with piston, the lower extreme of lifter and second mount pad between still be provided with the second spring.

After the structure is adopted, the multi-thread grinding machine replaces manual grinding, so that the grinding precision and the machining efficiency are improved, and the working strength of personnel is greatly reduced; and the design also has the advantages of simple structure, easy manufacture, practicality and high efficiency.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a structural view of the first resilient collet.

Fig. 3 is a structural view of the second elastic collet.

Detailed Description

As shown in fig. 1 and 2, the multi-thread grinding machine for optical lenses comprises a base 1, a flat worktable 2 for installation and fixation is arranged at the top of the base 1, two elastic collet chucks are oppositely arranged above the worktable 2, the two elastic collet chucks are respectively a first elastic collet chuck 13 for detachably fixing an optical lens a and a second elastic collet chuck 7 for detachably fixing an optical lens B, the first elastic collet chuck is composed of a first inner clamp and a first outer clamp 13-2, the first outer clamp is cylindrical, the first inner clamp is composed of a first clamping head part 13-1-1, a first guiding part 13-1-2, a first thread part 13-1-3 and a first fixing part 13-1-4 which are sequentially connected into a whole from left to right, a first connecting thread matched with the first thread part is arranged inside the first outer clamp, the first clamping head part 13-1-1, the first guide part 13-1-2 and the opposite two sides of the first thread part 13-1-3 are provided with through notches 13-1-5, the position of the first clamping head part 13-1-1, the first guide part 13-1-2 and the first thread part on the first inner clamp is adjusted by rotating the first outer clamp, the deformation amount of the first clamping head part 13-1-1, the first guide part 13-1-2 and the first thread part is changed, so that the size of the opening of the optical lens A clamped by the first clamping head part is changed, a first internal thread used for connecting the optical lens A is further arranged in the first clamping head part, a first external thread 13-1-4-1 is arranged on the outer side of the first fixing part, the first fixing part is detachably connected into the mounting barrel through the first external thread, one side of the mounting barrel, which is far away from the first fixing part, is connected with one end of the guide rod into a whole, the other end of the guide rod penetrates through the guide cylinder 6 and is movably connected with the guide cylinder, the bottom of the guide cylinder is provided with a lifting rod 5 which is connected with the guide cylinder into a whole, the lifting rod is vertically and movably connected with the top of the workbench 2, the outer side of the guide rod between the mounting cylinder and the guide cylinder is also provided with a first spring 21 in a surrounding way, two ends of the first spring are respectively connected with the mounting cylinder and the guide cylinder, the second elastic collet chuck is detachably connected with one end of the transmission shaft 10, the other end of the transmission shaft 10 is connected with the detection shaft through a first coupling 19, the detection shaft penetrates through the torsion sensor 15 and is connected with the servo motor 20 through a second coupling 16, the servo motor is arranged on one side of the vertically arranged mounting plate 17, the torsion sensor is detachably arranged on the workbench, and the top of the torsion sensor is provided with a display screen 14 which is electrically connected with the torsion sensor, the transmission shaft is also sleeved with a hand wheel 11. The multi-thread grinding machine replaces manual grinding, so that the grinding precision and the machining efficiency are improved, and the working intensity of personnel is greatly reduced; and the design also has the advantages of simple structure, easy manufacture, practicality and high efficiency.

The outer side of the first outer clip shown in fig. 2 is provided with a first holding rod 13-2-1, and the outer side of the first fixing part is also provided with a second holding rod 13-1-4-2.

The transmission shaft shown in fig. 1 sequentially penetrates through the two second guide seats 9, a bearing is arranged between the transmission shaft and the second guide seats, the second guide seats are installed at the top of the workbench through the fixing seats 18 at the bottoms of the second guide seats, and threaded holes for installing the fixing seats and the installing plates are formed in the top of the workbench.

The second elastic collet chuck 7 shown in fig. 3 comprises a second outer clamp 7-2 and a second inner clamp, the second inner clamp is formed by sequentially connecting a second collet head part 7-1-1, a second guide part 7-1-2 and a second fixing part 7-1-3 into a whole from left to right, two opposite sides of the second collet head part are both provided with notches 7-1-1-1 penetrating through the second collet head part, the second guide part is provided with a second thread part 7-1-2-1, the second outer clamp is internally provided with a second connecting thread matched with the second thread part, one end of the second outer clamp is also internally provided with a limiting part 7-2-1 compressing the second collet head part, the position of the second outer clamp on the second inner clamp is adjusted by rotating the second outer clamp, and the position of the limiting part on the second collet head part is adjusted, thereby change the deflection of second chuck portion, change second chuck portion centre gripping optical lens B open-ended size, the inside of second chuck portion still be provided with the second internal connection screw thread that is used for connecting optical lens B, the transmission shaft keep away from the one end of first shaft coupling seted up with second fixed part assorted connecting hole, the second fixed part stretch into in the connecting hole, the transmission shaft outer wall on still seted up locking screw hole, locking screw hole in-connection have a puller bolt 8, puller bolt pass locking screw hole and second fixed part and contact, make the second fixed part fix in the connecting hole through the frictional force between puller bolt and the second fixed part.

The top of the workbench shown in fig. 1 is provided with a second mounting seat 4 for connecting a lifting rod, the lower end of the lifting rod is connected in the second mounting seat in a piston manner, and a second spring is further arranged between the lower end of the lifting rod and the second mounting seat.

When the optical lens clamping device works, the optical lens A is clamped on the first elastic collet chuck, and the optical lens B is clamped on the second elastic collet chuck; aligning the optical lens A and the optical lens B to ensure that a connecting thread on the optical lens A is connected into a thread groove in the optical lens B to be used as a lens 0 position and an indexing point, and as an initial position of the rotation of the servo motor, indexing is carried out for grinding threads behind the multi-thread; then starting a servo motor to grind, wherein the lens is in interference fit when being turned, so that the grinding is in a progressive grinding mode, the grinding distance is defined by a program, the torsion is ground, the torsion is cut off, the lens is retracted, the grinding is carried out again, and the process is circulated until the numerical value displayed on a display screen on a torsion sensor meets the requirement; after grinding of one connecting thread and one thread groove is finished, starting a servo motor to retreat the lens and perform indexing, and continuing to grind the next connecting thread and the next thread groove according to the steps until grinding of all the connecting threads and the thread grooves is finished; and finally, withdrawing all connecting threads on the optical lens A from the thread groove in the optical lens B, and disassembling the optical lens B and the optical lens A for pairing cleaning.

Claims

1. The utility model provides an optical lens multi-thread grinder, includes base (1), the top of base (1) be provided with be used for the fixed smooth workstation (2) of installation, its characterized in that: two elastic collet chucks are oppositely arranged above the workbench (2), the two elastic collet chucks are respectively a first elastic collet chuck (13) for detachably fixing the optical lens A and a second elastic collet chuck (7) for detachably fixing the optical lens B, the first elastic collet chuck is composed of a first inner clamp and a first outer clamp (13-2), the first outer clamp is cylindrical, the first inner clamp is composed of a first head clamping part (13-1-1), a first guide part (13-1-2), a first thread part (13-1-3) and a first fixing part (13-1-4) which are sequentially connected into a whole from left to right, first connecting threads matched with the first thread part are arranged in the first outer clamp, and the first head clamping part (13-1-1) and the first fixing part (13-1-4), Opposite two sides of the first guide part (13-1-2) and the first thread part (13-1-3) are provided with through notches (13-1-5), a first internal connection thread used for connecting the optical lens A is further arranged in the first clamping head part, a first external connection thread (13-1-4-1) is arranged on the outer side of the first fixing part, the first fixing part is detachably connected into the installation cylinder through the first external connection thread, one side of the installation cylinder far away from the first fixing part is connected with one end of the guide rod into a whole, the other end of the guide rod penetrates through the guide cylinder (6) and is movably connected with the guide cylinder, the bottom of the guide cylinder is provided with a lifting rod (5) connected with the guide cylinder into a whole, and the lifting rod is vertically and movably connected to the top of the workbench (2), the outer side of a guide rod between the mounting cylinder and the guide cylinder is further provided with a first spring (21) in a surrounding mode, two ends of the first spring are connected with the mounting cylinder and the guide cylinder respectively, the second elastic collet chuck is detachably connected to one end of the transmission shaft (10), the other end of the transmission shaft (10) is connected with the detection shaft through a first coupler (19), the detection shaft penetrates through the torsion sensor (15) and is connected with the servo motor (20) through a second coupler (16), the servo motor is installed on one side of the vertically placed mounting plate (17), the torsion sensor is detachably installed on the workbench, the top of the torsion sensor is provided with a display screen (14) electrically connected with the torsion sensor, and the transmission shaft is further sleeved with a hand wheel (11).

2. The multi-thread grinding machine for optical lenses according to claim 1, wherein: the outer side of the first outer clamp is provided with a first holding rod (13-2-1), and the outer side of the first fixing part is also provided with a second holding rod (13-1-4-2).

3. The multi-thread grinding machine for optical lenses according to claim 1, wherein: the transmission shaft pass two second guide holder (9) in proper order, transmission shaft and second guide holder between be provided with the bearing, the second guide holder install the top at the workstation through fixing base (18) of its bottom, the top of workstation offer the screw hole that is used for installing fixing base and mounting panel.

4. The multi-thread grinding machine for optical lenses according to claim 1, wherein: the second elastic collet chuck (7) comprises a second outer clamp (7-2) and a second inner clamp, the second inner clamp is formed by sequentially connecting a second collet head part (7-1-1), a second guide part (7-1-2) and a second fixing part (7-1-3) into a whole from left to right, notches (7-1-1-1) penetrating through the second collet head part are formed in two opposite sides of the second collet head part, a second thread part (7-1-2-1) is arranged on the second guide part, second connecting threads matched with the second thread part are arranged in the second outer clamp, a limiting part (7-2-1) for compressing the second collet head part is further arranged in one end of the second outer clamp, and second internal connecting threads used for connecting an optical lens B are further arranged in the second collet head part, the one end that keeps away from first shaft coupling of transmission shaft seted up with second fixed part assorted connecting hole, the second fixed part stretch into in the connecting hole, the transmission shaft outer wall on still seted up locking screw hole, locking screw hole in be connected with puller bolt (8), puller bolt pass locking screw hole and second fixed part and contact, make the second fixed part fix in the connecting hole through the frictional force between puller bolt and the second fixed part.

5. The multi-thread grinding machine for optical lenses according to claim 1, wherein: the top of the workbench is provided with a second mounting seat (4) used for being connected with a lifting rod, the lower end of the lifting rod is connected in the second mounting seat in a piston mode, and a second spring is further arranged between the lower end of the lifting rod and the second mounting seat.