JP2008114360A - Rotary type automatic polishing device of glass lens - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary type automatic polishing device of a glass lens saving equipment cost, labor cost and maintenance repair cost by efficiently making the most of a working space, shortening manufacturing time, reducing machining errors, while improving productivity, product accuracy and surface roughness, and improving quality of a product. <P>SOLUTION: Eight lens holders H and H' are mounted on arms 21 and 21' of an upper part rotation rotary type spindle 22, X-Y axis transfer 15 and rotation chucking part 14 are installed on one side of a lower part, tooth tools for grinding, fine grinding and fine polishing are installed clockwise, and washing and curvature measurement measuring instrument, and super-fine polishing, and polishing and super-polishing tooth tools are successively installed so that supply of a glass lens material and eight processes of discharge, grinding, fine grinding, fine polishing, washing and curvature measurement, and super-fine polishing, polishing and super-polishing of the machined product may be executed by a single device. By the installation, the arms 21 and 21' of the spindle 22 can be made to automatically machine the glass lens on a spherical surface, while rotating. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention automates the supply, discharge, processing (polishing) and measurement of materials in order to process glass lenses used in precision optical products in the field of image recording such as digital cameras, mobile phones and CCDTVs into spherical surfaces. In more detail, there are eight kinds of glass lens rotating type automatic polishing equipment, more specifically glass lens material supply and processed product discharge, grinding, fine cutting, fine polishing, cleaning and curvature measurement, super fine polishing, polishing and super polishing. Eight lens holders are attached to the arm of the upper rotary rotary spindle so that the process can be performed by a single device, and an XY axis transfer and rotary chucking unit are installed on one side of the lower part. While setting the tooth tool for grinding, fine cutting, and polishing in the direction, and sequentially installing the measuring instrument for cleaning and curvature and the super polishing, polishing, and super polishing tooth tool, while the spindle arm rotates It relates that to be able to process the glass lens spherical in motion.

  In general, lens processing is performed by automatically or passively supplying and fixing a spherical lens (concave lens, convex lens) processed into a hemispherical shape by a device for transferring a lens material, a device for fixing a lens, and a device for polishing a lens. The lens surface is polished and processed into a fixed shape by the lens polishing apparatus and molded.

  A conventional glass lens molding apparatus is equipped with three equipments, a grinding apparatus for processing a lens material, a precision cutting apparatus, and a polishing apparatus, and is polished and processed while measuring the curvature with a separate measuring instrument.

  The processing method of the apparatus is four steps of three equipments (grinding, fine cutting, polishing) with the work material fixed on the upper side, and the lower side rotating, grinding, grinding, fine cutting, ultra-fine cutting, polishing. The lens was molded and processed automatically or passively, the lens processed in each of the above steps was passively measured by a separate measuring instrument, transferred to the next step, and processed.

  Since the conventional processing apparatus and method described above are equipped with three equipments, the occupation rate of the work space is high and the work space cannot be effectively used, and more than 5 skilled work personnel are required. As a result, equipment costs (121 million won) and labor costs will rise, and not only will the production time be delayed and productivity will be reduced as automation and passive are repeated in the processing and measurement processes, but processing errors will also occur. As a result, there was a problem that reliability of product quality was lowered.

  Moreover, the conventional apparatus can process the processing material standard φ5.0 or more, the production conditions are R: 5.0-45.0, T: 0.5 or more, and the surface roughness is PV: Although 0.3 nm and Rms: 0.03 nm or more, there are problems such as a narrow selection range of lens materials to be processed and low precision and roughness.

  Accordingly, the present invention has been made to solve the conventional problems as described above, wherein eight lens holders are mounted on the upper rotary rotary arm, and a lens material supply / discharge section is provided on the lower side. Installed and made it possible to automatically produce lens material on a spherical surface with a single device that sequentially installs grinding, fine grinding, fine polishing processing unit, measurement unit, super polishing, polishing, super polishing processing unit in the clockwise direction. The production space can be shortened by improving the utilization of the work space, and the quality of the product can be improved by reducing the processing error of the product. Since it is automatically produced by unmanned work or one person work, the labor cost is maintained. An object is to provide a polishing apparatus capable of reducing the repair cost.

  Another object of the present invention is to reduce the equipment cost (about 85 million won) by the equipment of a single device, and to process the processing material standard φ2.0 or more, and the production condition of the lens is R : 1.5-25.0, T: 0.3 or more, surface roughness PV: 0.2 nm, Rms: 0.02 nm or more An object of the present invention is to provide a polishing apparatus capable of improving the hardness and the surface roughness.

  In order to achieve the above object, the present invention provides a polishing apparatus capable of automatically forming a glass lens material into a spherical surface, and includes a caster and a stopper at a lower end, and a center of a frame where a bed is installed at an upper portion. Insert the main shaft with multiple arms, rotate the driven pulley of the lower end of the main shaft with the driving pulley of the rotary motor mounted inside the frame, and install the vacuum suction port at the lower end of each of the multiple arms A lens holder that is moved up and down by a cylinder is mounted, a rotating chucking portion is installed on one side of the lower end bed corresponding to the lens holder, and a lens material stacking box and a processing material are installed by an XY transfer at the front end. It is possible to supply and discharge to the loading box, and from the rotating chucking section, the grinding processing section, the fine cutting processing section, and the fine polishing clockwise. The processing part, super polishing processing part, polishing processing part and super polishing processing part are sequentially installed, and each processing part is equipped with a tooth tool that is rotated by a tooth tool motor inside a swinging housing that is turned by a peristaltic motor, A cutting oil injection nozzle for injecting cutting oil from the cutting oil supply tank is installed on one side of the swing housing, and a water / air injection nozzle in which water and air are mixed by a water tank and a compressor is installed on the other side. A cleaning and curvature measuring unit is installed between the polishing unit and the ultra-fine polishing unit, a door and a measurement sensor that are opened and closed by the lifting and lowering operation of the cylinder are installed at the lower end of the measurement chamber, and water is placed on one side of the measurement chamber. Provided is a glass lens rotary automatic polishing apparatus having an injection nozzle and an air injection nozzle on the other side.

  As described above, in the present invention, for spherical processing of a glass lens, a lens holder is installed on an arm of a rotary rotary spindle, and supply and discharge to a frame, grinding, sharpening, polishing, cleaning and curvature measurement, With a single device equipped with ultra-fine polishing, polishing and super-polishing equipment, it can be operated unattended and can efficiently use the work space, shortening the production time and expanding the range of lenses to be processed While improving productivity, product precision and surface roughness, processing errors can be reduced, product quality can be improved, equipment costs, labor costs, maintenance costs can be reduced, etc. There is something.

  Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic view showing the overall structure of the present invention. Eight lens holders are mounted on an upper rotary rotary arm, and a lower lens material supply and discharge unit, a grinding unit, a sharpening unit, and a polishing unit. A processing unit, a measurement unit, a super polishing processing unit, a polishing processing unit, and a super polishing processing unit were installed in sequence, and a lens material loading box and a processing material loading box were installed on both ends of the lens material supply / discharge unit. FIG. 2 is a front structural view of the present invention in a partially cut state according to the present invention. FIG. 2 shows a lens holder mounted on a rotary rotary arm and lens material processing portions (both fine grinding and polishing) on both sides thereof. 3 is a side structural view of the present invention in a partially cut state according to the present invention. The lens holder mounted on the rotary rotary arm and the lens material supply and discharge unit mounted on the lower side of the lens holder. On the other side FIG. 4 is a detailed structural diagram of the material supply / discharge unit according to the present invention. FIG. 4 is a detailed structural view of the material supply / discharge unit of the present invention. FIG. 5 is a detailed structural diagram of the processing unit of the present invention, and illustrates grinding, fine cutting, polishing, super polishing, polishing, and super polishing processing unit. FIG. 6 is a detailed structural diagram of the measuring unit of the present invention, and shows a state in which the lens material to be processed, that is, the curvature of the spherical surface is measured.

  The glass lens rotary automatic polishing apparatus of the present invention is a polishing apparatus A capable of automatically forming a material of a glass lens R into a spherical surface, and is provided with casters 11 and 11 ′ and stoppers 12 and 12 ′ at the lower end. In the center of the frame F on which the bed 13 is installed, a main shaft 22 on which a large number of arms 21 and 21 'are installed is inserted, and the lower end driven pulley 23 of the main shaft 22 is attached to the inside of the frame F. The plurality of arms 21 and 21 ′ are rotated by a driving pulley 24, and vacuum suction ports 25 and 25 ′ are installed at lower ends of the arms 21 and 21 ′, and lens holders H and H ′ that are moved up and down by the cylinders 26 and 26 ′ are attached. The rotating chucking portion 14 is installed on one side of the lower end bed 13 corresponding to the lens holders H and H ′, and the XY axis trunk is installed at the front end. The fur 15 can be supplied to and discharged from the lens material stacking box 16 and the processing material stacking box 17. From the rotating chucking unit 14, the grinding processing unit 30, the fine processing unit 30 a, the polishing unit 30 b, A polishing unit 30c, a polishing unit 30d, and a super-polishing unit 30e are sequentially installed, and each processing unit is a tooth tool that is rotated by a tooth tool motor M ″ inside a swinging housing 31 that is swung by a peristaltic motor M ′. 32, a cutting oil injection nozzle 34 for injecting cutting oil from a cutting oil supply tank 33 is installed on one side of the oscillating housing 31, and water and air mixed with water and a compressor 35 are installed on the other side. An air injection nozzle 36 is installed, a cleaning and curvature measuring unit 40 is installed between the polishing unit 30b and the ultra-polishing unit 30c, and a cylinder 42 is installed at the lower end of the measuring chamber 41. The door 43 and the measurement sensor 44 which is opened and closed by descending actuation established, the water injection nozzle 45 at one side of the measuring chamber 41, a structure in which installing the air injection nozzle 46 on the other side.

  The processing parts, that is, the grinding part 30, the fine grinding part 30a, the fine grinding part 30b, the super-fine grinding part 30c, the grinding part 30d, and the super-grinding part 30e are the same as those of the tooth tool 32 mounted in the same structure. This is a configuration with different particle sizes.

  The lens holders H and H ′ are configured such that the lens holders H and H ′ can be limited and buffered by installing buffer limits 27 and 27 ′ on one side.

  A separate cover 37, 37 'is installed at the upper part of the processing section, and a processing sensing CCD device 38, 38' is installed inside the cover 37, 37 'so that the processing state can be monitored. .

  In the drawing, reference numeral 32a is a tooth tool driving pulley, 32b is a tooth tool driven pulley, and 39 is a swing shaft adjusting handle of the swing housing 31.

  As shown in FIG. 1, the present invention configured as described above includes a grinding processing unit 30, a finishing processing unit 30 a, and a polishing processing unit in a clockwise direction from the chucking unit 14 installed on the bed 13 of the frame F. 30b, a cleaning and curvature measuring unit 40, a super polishing unit 30c, a polishing unit 30d, and a super polishing unit 30e are sequentially installed, and the lens holders H, H mounted on the eight arms 21, 21 'on the upper part thereof ”Receives the glass lens (lens material) 9 from the lens material loading box 16, and rotates the main shaft 22 to form the spherical lens while rotating the bed 13 by 360 ° and discharges it to the processing material loading box 17. Provided is a single polishing apparatus A that can be automated.

  As shown in FIGS. 3 and 4, in order to supply the lens material R loaded in the lens material loading box 16, the XY axis transfer 15 moves forward to the loading box 16 and sucks the lens material R. If the XY-axis transfer 15 is reversed 180 ° and placed on the chucking portion 14 after moving backward to the rotation chucking portion 14, the rotation chucking portion 14 is reversed 180 °. At this time, the lens holder H mounted on the arm 21 of the main shaft 22 is lowered by the operation of the cylinder 26, sucks the lens material R by the suction port 25 at the tip, and then moves up by the operation of the cylinder 26.

  When the lens holder H is lowered, the lower limit operation of the suction port 25 is restricted by a buffer limit 27 installed on one side of the lens holder H to prevent a collision with a tooth tool 32 described later. The impact transmitted to H itself can be prevented.

  After the above-described operation, the driven pulley 23 at the lower end of the main shaft 22 is rotated by the drive pulley 24 by the operation of the rotary motor M, as shown in FIGS.

  The lens holder H is moved to an angle of 45 ° in one step and positioned on the grinding part 30, and the lens holder H ′ mounted on the right side thereof is positioned on the rotating chucking part 14.

  The lens holder H descends and is positioned on the tooth tool 32 of the grinding unit 30 to wait for the grinding operation, and the lens holder H ′ stands by on the rotating chucking unit 14.

  In the grinding section 30, the peristaltic motor M ′ and the tooth tool motor M ″ are operated while the lens holder H is attracting the lens material R, and the swing housing 31 is moved from the outer peripheral edge of the main shaft 22 to the main shaft 22. The lens material R is ground by rotating the tooth tool 32 while swinging in the direction, and the cutting oil injection nozzle 34 installed on one side of the swing housing 31 is cut from the cutting oil supply tank 33 during the operation. In response, the cutting oil is sprayed onto the grinding site.

  When the grinding operation is completed, the water and air are jetted by the water tank and the compressor 35 from the water / air jet nozzle 34 installed on the other side of the swing housing 31 for cleaning.

  After the lens material R is cleaned in this way, the lens holder H is raised by the operation of the cylinder 26, and the lens holder H ′ on the right side also attracts the lens material R from the rotating chucking portion 14 by the operation of the cylinder 26 ′. Rise together.

  After the above operation, the main shaft 22 is further rotated by 45 ° in one step, so that the leading lens holder H is located in the precision cutting portion 30a and the trailing lens holder H ′ is located in the grinding portion 30. The lens holder H ′ installed on the right side of the lens is located in the rotation chucking portion 14.

  The lens holder H descends and is positioned on the tooth tool 32 of the precision cutting unit 30a and waits for the fine cutting operation, and the lens holder H 'descends and is positioned on the tooth tool 32 of the grinding unit 30 and grinding operation. , And the right lens holder H ′ of the lens holder H ′ waits on the rotating chucking portion 14.

  In the precision cutting part 30a and the grinding part 30, in the state where the lens holders H and H ′ are adsorbing the lens material R, the peristaltic motor M ′ and the tooth tool motor M ″ are operated to move the swing housing 31. The lens material R is finely ground and ground by rotating the tooth tool 32 while swinging in the direction of the main shaft 22 from the outer peripheral edge of the main shaft 22, and is installed on one side of the swing housing 31 during the work. The cutting oil injection nozzle 34 receives the cutting oil from the cutting oil supply tank 33 and injects the cutting oil onto a precise cutting and grinding site.

  When the fine cutting and grinding operations are completed, water is jetted from the water / air jet nozzle 34 installed on the other side of the oscillating housing 31 by the water tank and the compressor 35 for cleaning.

  After cleaning the lens material R in this way, the lens holders H and H ′ are raised by the operation of the cylinders 26 and 26 ′, and the lens holder H ′ on the right side of the lens holder H ′ is also rotated by the operation of the cylinder 26 ′. The lens material R is adsorbed from the king portion 14 and rises together.

  After the above operation, the main shaft 22 is further rotated by 45 ° in one step, so that the leading lens holder H is moved to the fine polishing portion 30b, the trailing lens holder H ′ is moved to the fine cutting portion 30a, and the trailing lens holder H. The 'right lens holder H' of the lens is located in the grinding part 30 and the lens holder H 'installed on the right side of the lens holder H' is located in the rotating chucking part 14 and is respectively in the same manner as the above-described machining operation. Operates, and proceeds while adsorbing the processing and the lens material R and repeatedly moving up and down.

  As described above, the eight lens holders H and H ′ installed on the eight arms 21 and 21 ′ adsorb the lens material R by the same method, and rotate and move up and down. The lens material R is received by the Y transfer 15, and the grinding unit 30, the fine machining unit 30 a, and the fine grinding unit 30 b also perform the respective grinding, fine grinding, and fine polishing operations by the same structure and method. Each work is performed by changing the particle size of the installed tooth tool 32.

  If the preceding lens holder H reaches the cleaning and curvature measuring unit 40 as shown in FIG. 6 by proceeding in the manner as described above, the lens holder H descends and enters the measuring chamber 41. 41. Water is sprayed from the water spray nozzle 45 installed on one side of the nozzle 41 to clean the lens material R, air is sprayed from the air jet nozzle 46 on the other side, dried, and then installed at the lower end of the measurement chamber 41. As the cylinder 42 is raised, the door 43 is opened, and the measurement sensor 44 installed at the upper end of the cylinder is raised to measure the curvature of the lens material R and transmit the measured value to the controller.

  As described above, the preceding lens holder H that has passed through the cleaning and curvature measuring unit 40 sequentially passes through the super polishing unit 30c, the polishing unit 30d, and the super polishing unit 30e while sequentially performing the grinding, fine cutting, and polishing processing. Ultra-fine polishing, polishing, and super-polishing operations are performed in the same manner as the units 30, 30a, and 30b, respectively.

  As described above, the lens material R is supplied and processed if it rotates once by 360 ° through the steps of grinding, fine cutting, polishing, cleaning and curvature measurement, super polishing, polishing and super polishing. The lens material R is rested on the chucking unit 14 supplied first, and the rested lens R is transferred to the work material stacking box 17 by the XY-axis transfer 15, and automatically rotates while the main shaft 22 rotates once. With this method, the lens can be processed and repeatedly processed by such a method.

  Further, the grinding part 30, the fine grinding part 30a, the fine grinding part 30b, the super-fine grinding part 30c, the grinding part 30d and the super-grinding part 30e, which are the machining parts, are provided above the swing housing 31. By attaching the separate covers 37 and 37 ′, it is possible to prevent the cutting oil and the washing water from being scattered during the processing of the material, and by installing the processing detection CCD devices 38 and 38 ′ inside thereof, the controller The work progress status can now be monitored.

  The present invention is not limited to the specific preferred embodiments described above, and anyone who has ordinary knowledge in the technical field to which the present invention belongs without departing from the spirit of the present invention claimed in the claims. However, various modifications can be made, and such changes are within the scope of the claims.

  The present invention is applicable to a glass lens rotary automatic polishing apparatus that automatically processes a glass lens into a spherical surface while the arm of the main shaft rotates.

It is the schematic which shows the whole structure of this invention. FIG. 3 is a front structural view of the present invention in a partially cut state. It is a side structure figure of the state where a partial incision of the present invention was carried out. It is a detailed structure figure of this invention material supply and discharge part. It is a detailed structural view of a processing portion (grinding, fine cutting, fine polishing, super polishing, polishing and super polishing) of the present invention. It is a detailed structure figure of the measurement part of the present invention.

Explanation of symbols

11, 11 'Caster 12, 12' Stopper 13 Bed 14 Chucking portion 15 XY axis transfer 16 Lens material stacking box 17 Work material stacking box 21, 21 'Arm 22 Spindle 23 Driven pulley 24 Drive pulley 25, 25' Suction port 26, 26 ′ Cylinder 27, 27 ′ Buffer limit 30 Grinding part 30 a Fine grinding part 30 b Fine grinding part 30 c Super-fine grinding part 30 d Polishing part 30 e Super-polishing part 31 Oscillating housing 32 Tooth tool 33 Cutting oil supply tank 34 Cutting oil injection nozzle 35 Compressor 36 Water / air injection nozzle 37, 37 'Cover 38, 38' Processing sensing CCD device 40 Cleaning and curvature measuring unit 41 Measurement chamber 42 Cylinder 43 Door 44 Measurement sensor 45 Water injection nozzle 46 Air injection nozzle A Polishing device F Frame H, H 'lens holder M, M', M "Motor R glass lens

Claims (4)

In the polishing apparatus A capable of automatically forming the material of the glass lens R into a spherical surface,
Casters 11 and 11 'and stoppers 12 and 12' are provided at the lower end, and a main shaft 22 having a large number of arms 21 and 21 'is inserted into the center of a frame F on which a bed 13 is installed. The lower end driven pulley 23 is rotated by a driving pulley 24 of a rotary motor M mounted on the inner side of the frame F, and a plurality of arms 21, 21 ′ are provided with vacuum suction ports 25, 25 ′ at the lower ends, respectively. The lens holders H and H ′ that are moved up and down by the cylinders 26 and 26 ′ are mounted, the rotating chucking portion 14 is installed on one side of the lower end bed 13 corresponding to the lens holders H and H ′, and the X installed at the front end -The Y-axis transfer 15 allows the lens material stacking box 16 and the work material stacking box 17 to be supplied and discharged, and grinding is performed clockwise from the rotating chucking portion 14. The part 30, the fine cutting part 30a, the fine polishing part 30b, the super polishing part 30c, the polishing part 30d and the super polishing part 30e are sequentially installed, and each processing part is swung by the peristaltic motor M ′. A tooth tool 32 that is rotated by a tooth tool motor M ″ is mounted inside the moving housing 31, and a cutting oil injection nozzle 34 that injects cutting oil from a cutting oil supply tank 33 is installed on one side of the swing housing 31. On the other side, a water / air injection nozzle 36 in which water and air are mixed by a water tank and a compressor 35 is installed, and a cleaning and curvature measuring unit 40 is installed between the polishing unit 30b and the super polishing unit 30c. The door 43 and the measurement sensor 44 that are opened and closed by the raising and lowering operation of the cylinder 42 are installed at the lower end of the measurement chamber 41, the water injection nozzle 45 is installed on one side of the measurement chamber 41, and the air injection nozzle 46 is installed on the other side. Rotary automatic grinding apparatus for a glass lens, characterized in that.   The grinding tool 30, the fine grinding part 30a, the fine grinding part 30b, the super fine grinding part 30c, the grinding part 30d, and the super grinding part 30e are tooth tools 32 mounted in the same structure. The glass lens rotary automatic polishing apparatus according to claim 1, wherein the particle sizes of the glass lenses are different from each other.   The lens holders H and H 'are configured to limit and buffer the lens holders H and H' by providing buffer limits 27 and 27 'on one side. Automatic polishing machine for glass lenses.   A separate cover 37, 37 'is installed at the upper part of the processing unit, and a processing sensing CCD device 38, 38' is installed inside the cover 37, 37 'to monitor the processing state. The rotating automatic polishing apparatus for glass lenses according to claim 1.

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