CN112397099B - A accurate positioning device for CD production line - Google Patents
A accurate positioning device for CD production line Download PDFInfo
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- CN112397099B CN112397099B CN202011384599.5A CN202011384599A CN112397099B CN 112397099 B CN112397099 B CN 112397099B CN 202011384599 A CN202011384599 A CN 202011384599A CN 112397099 B CN112397099 B CN 112397099B
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- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
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Abstract
The invention discloses an accurate positioning device for an optical disc production line, which comprises a positioning table, wherein an upward through inner cavity is arranged in the positioning table, a central positioning mechanism is arranged above the middle part of the inner cavity, edge positioning mechanisms are arranged at two sides of the inner cavity, the bottom of the positioning table is provided with a driving mechanism, the driving mechanism is internally provided with a lifting rod, the upper end of the lifting rod is connected with the central positioning mechanism, the central positioning mechanism is connected with the edge positioning mechanism through a linkage mechanism, the central positioning mechanism comprises a first connecting rod and a second connecting rod, the first connecting rod is hinged at the upper end of the lifting rod penetrating out of the positioning table, the end part of the first connecting rod, which is far away from the lifting rod, is hinged with one end of the second connecting rod, and the lower surface of the second connecting rod is fixedly connected with a first cushion. According to the invention, multi-point positioning is adopted, and the positioning firmness and accuracy are greatly improved.
Description
Technical Field
The invention relates to the technical field of optical storage disks, in particular to accurate positioning equipment for an optical disk production line.
Background
When the storage optical disc is produced, a LOGO needs to be printed on the surface of the storage optical disc, in the prior art, a stamper transfer printing process is usually adopted, and the optical disc needs to be positioned before the stamper transfer printing process, so that special positioning equipment is needed.
The existing positioning device is a blue-ray disc die assembly disclosed in chinese patent No. CN101777361B, and includes a mounting seat, a lower template and an upper template, the mounting seat has a horizontal mounting surface, the lower template is mounted on the mounting surface, the lower template has a flat lower press-fit surface, the upper template has a flat upper press-fit surface opposite to the lower press-fit surface, a positioning column protrudes from a center of the lower press-fit surface, the upper press-fit surface faces the positioning column and is inward to form a positioning hole, wherein the blue-ray disc die assembly further includes an elastic circular gasket, a mounting hole is formed in the center of the gasket, the positioning column passes through the mounting hole of the gasket to enable the gasket to be supported on the lower press-fit surface, and a convex ring protruding from an outer ring of the gasket and facing the upper press-fit surface.
In the invention, the positioning column is used for positioning the central hole of the optical disc, but the positioning structure is single, and the positioning firmness and accuracy are not high enough, so that an accurate positioning device for an optical disc production line needs to be designed urgently to solve the problems.
Disclosure of Invention
The invention aims to provide accurate positioning equipment for an optical disc production line, which adopts multi-point positioning, greatly improves positioning firmness and accuracy and solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an accurate positioning device for CD production line, includes the location platform, upwards penetrating inner chamber has been seted up to the inside of location platform, central positioning mechanism is installed to the middle part top of inner chamber, edge positioning mechanism is installed to the both sides of inner chamber, actuating mechanism is installed to the bottom of location platform, actuating mechanism's internally mounted has the lifter, the upper end of lifter with central positioning mechanism links to each other, central positioning mechanism with link mechanism links to each other between the edge positioning mechanism.
Preferably, the central positioning mechanism comprises a first connecting rod and a second connecting rod, the first connecting rod is hinged to the upper end, where the lifting rod penetrates out of the positioning table, and the end part, far away from the lifting rod, of the first connecting rod is hinged to one end of the second connecting rod.
Preferably, a first cushion is fixedly connected to the lower surface of the second connecting rod.
Preferably, a stop block is fixedly connected to the outer wall of the first connecting rod, which is close to the hinged position of the first connecting rod and the second connecting rod.
Preferably, the edge positioning mechanism comprises a third connecting rod and a pre-pressing mechanism, the lower end of the third connecting rod is hinged to the inner wall of the inner cavity, and the pre-pressing mechanism is installed at the upper end of the third connecting rod.
Preferably, the prepressing mechanism comprises a screw rod, a pressing plate, a nut and a spring, the screw rod penetrates through the inner part of the upper end of the third connecting rod, one end of the screw rod, which is close to the second connecting rod, is fixedly connected with the pressing plate, the screw rod penetrates out of the outer wall of the other end of the third connecting rod and is in threaded connection with the inner wall of the nut, and the spring is sleeved on the screw rod, which is opposite to the pressing plate, of the upper end of the third connecting rod.
Preferably, a second cushion is fixedly connected to the side surface of the pressure plate close to the second connecting rod.
Preferably, the linkage mechanism comprises a fourth connecting rod, the fourth connecting rod is hinged to the inner wall of the inner cavity, the upper end of the fourth connecting rod is fixedly connected with a mandril, the fourth connecting rod is hinged to a bent rod, the upper end of the bent rod is hinged to the other end of the second connecting rod, the lower end of the fourth connecting rod is fixedly connected with a guide pillar, a guide groove is formed in the surface, close to the lower end of the third connecting rod, and the guide pillar penetrates through the guide groove.
Preferably, the driving mechanism is any one of a worm gear lifter, an electric telescopic rod, a hydraulic cylinder and an air cylinder.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the central positioning mechanism is arranged and consists of the first connecting rod, the second connecting rod and the first cushion, as shown in figure 2, the second connecting rod is pressed on the inner ring from top to bottom through the first cushion to position the upper surface of the inner ring of the optical disk, and the first positioning function is realized.
2. According to the invention, by arranging the edge positioning mechanism which consists of the third connecting rod and the prepressing mechanism, as shown in fig. 2, the prepressing mechanism is close from the outside to the middle and is extruded on the outer ring to position the edge of the outer ring of the optical disk, so that the second positioning function is realized.
3. According to the invention, by arranging the linkage mechanism, the linkage mechanism consists of the fourth connecting rod, the ejector rod, the bent rod, the guide pillar and the guide groove, as shown in fig. 2, when the inner ring of the optical disk is positioned, the outer ring of the optical disk is positioned simultaneously through the linkage mechanism, and two positioning functions operate simultaneously; as shown in fig. 4, when the inner ring of the optical disc is released, the outer ring of the optical disc is simultaneously released by the linkage mechanism, and the two positioning actions operate simultaneously, so that the time required by separate adjustment is saved, and the positioning efficiency is improved.
4. According to the invention, by arranging the bent rod, as shown in fig. 2, when the second connecting rod is pressed on the inner ring from top to bottom through the first cushion to position the upper surface of the inner ring of the optical disk, the bent rod is tensioned on the inner wall of the inner ring to play a third positioning role.
5. According to the invention, by arranging the ejector rod, as shown in fig. 4 and 5, after the positioning of the inner ring and the outer ring is released, the ejector rod is driven to rotate upwards to jack up the optical disk and drive the optical disk to move upwards for a certain distance, so that the optical disk is convenient to take out; when the optical disk is thrown in, the ejector rod can upwards support the optical disk when the optical disk is not contacted with the upper surface of the positioning table.
6. According to the invention, the first cushion, the second cushion, the third cushion and the ejector rod are made of the same material, such as rubber, which is not easy to scrape the optical disc, so that the optical disc is protected.
Drawings
FIG. 1 is a schematic top view of an optical disc according to the present invention;
FIG. 2 is a schematic structural diagram of a front sectional view of a positioning table after positioning an optical disc according to the present invention;
FIG. 3 is a schematic structural view in elevation and section of the first pass of the disalignment of the present invention;
FIG. 4 is a schematic structural view of a cross-sectional view of a second post-disalignment elevation view of the present invention;
FIG. 5 is a schematic structural diagram of a cross-sectional view of a front view of the optical disc after the third positioning step is released and the optical disc is lifted;
FIG. 6 is a schematic structural diagram of a top view of the positioning table of the present invention.
In the figure: 1. a positioning table; 101. an inner cavity; 102. a third cushion; 2. a central positioning mechanism; 201. a first link; 202. a second link; 203. a first cushion; 204. a stopper; 3. an edge positioning mechanism; 301. A third link; 302. a pre-pressing mechanism; 3021. a screw; 3022. pressing a plate; 3023. a nut; 3024. A spring; 3025. a second cushion; 4. a drive mechanism; 401. a lifting rod; 5. a linkage mechanism; 501. A fourth link; 502. a top rod; 503. bending a rod; 504. a guide post; 505. a guide groove; 6. an optical disc; 601. An inner ring; 602. a middle ring; 603. and an outer ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a technical solution: an accurate positioning device for an optical disc production line comprises a positioning table 1, wherein when an optical disc 6 is processed, the optical disc 6 is placed on the upper surface of the positioning table 1, so that the positioning table 1 can provide a supporting function for the optical disc 6, and the width and the length of the positioning table 1 are respectively more than or equal to the width and the length of the optical disc 6; the upper surface of the positioning table 1 should be kept horizontal so that the pattern can be accurately transferred to the upper surface of the optical disc 6 at the time of compression molding; a third pad 102 is fixedly connected to the positioning table 1, and the third pad 102 may be made of a material, such as rubber, which is not easy to scratch the optical disc, and plays a role in protecting the optical disc; an upward through inner cavity 101 is formed in the positioning table 1, the inner cavity 101 vacates a space for installation of the structure, the positioning table 1 looks like a concave shape from the side surface, wherein the width of the inner cavity 101 is about 30% of the width of the upper surface of the positioning table 1, which is not too large, otherwise, the inner cavity cannot provide a large-area support for the optical disc 6, and is not too small, otherwise, the width of a positioning mechanism described below is limited, and a large-area clamping cannot be provided for the optical disc 6.
The optical disc 6 is composed of three parts, namely an inner circle 601, a middle circle 602 and an outer circle 603, and mainly transfers a pattern onto the middle circle 602 during compression molding, the optical disc 6 belongs to the well-known technology well known to those skilled in the art, in this embodiment, the purpose of providing and protecting the precise positioning device for the optical disc production line is to provide and protect the precise positioning device, and the improvement on the optical disc 6 itself is not involved, so the construction and composition thereof will not be described in detail in this embodiment.
A central positioning mechanism 2 is installed above the middle part of the inner cavity 101, the central positioning mechanism 2 positions the upper surface of the inner ring 601, edge positioning mechanisms 3 are installed on two sides of the inner cavity 101, the edge positioning mechanisms 3 position the edge of the outer ring 603, a driving mechanism 4 is installed at the bottom of the positioning table 1, a lifting rod 401 is installed inside the driving mechanism 4, the driving mechanism 4 can drive the lifting rod 401 to lift, the upper end of the lifting rod 401 is connected with the central positioning mechanism 2, the central positioning mechanism 2 is connected with the edge positioning mechanism 3 through a linkage mechanism 5, so when the driving mechanism 4 drives the lifting rod 401 to move upwards, the central positioning mechanism 2 and the edge positioning mechanism 3 can simultaneously release respective positioning functions, otherwise when the driving mechanism 4 drives the lifting rod 401 to move downwards, the central positioning mechanism 2 and the edge positioning mechanism 3 can reestablish respective positioning functions, so that the two positioning functions are operated simultaneously due to the arrangement of the linkage mechanism 5, the time required by respective separate adjustment is saved, and the positioning efficiency is improved.
The driving mechanism 4 is any one of a worm gear lifter, an electric telescopic rod, a hydraulic cylinder and a cylinder, and can realize linear lifting no matter which one is adopted, wherein the running speed of the machine can be designed according to actual requirements so as to achieve stable operation.
Specifically, the center positioning mechanism 2 includes a first link 201 and a second link 202, the first link 201 is hinged on the upper end of the lifting rod 401 penetrating out of the positioning table 1, the end of the first link 201 far away from the lifting rod 401 is hinged on one end of the second link 202, as shown in fig. 2, when the lifting rod 401 drives the first link 201 to descend, the second link 202 is driven to rotate, so that the second link 202 is gradually balanced, and since in this embodiment, a first pad 203 is fixedly connected to the lower surface of the second link 202, the first pad 203 may be a material such as rubber which is not easy to scratch a compact disc, and serves to protect the compact disc, so that the first pad 203 can be abutted on the inner ring 601 from top to bottom to serve as a first positioning function, the designed length of the first pad 203 is less than or equal to the width of the inner ring 601, therefore, the first pad 203 does not go beyond the area where the middle ring 602 is located, so as not to interfere with the stamper, and on the contrary, when the lifting rod 401 moves upwards, the second link 202 is driven to rotate, so that the size of the vertical projection area of the second link 202 gradually decreases back to the area of the inner ring 601, so as to avoid the optical disc 6 being finally taken out.
Specifically, the edge positioning mechanism 3 includes a third connecting rod 301 and a pre-pressing mechanism 302, the lower end of the third connecting rod 301 is hinged to the inner wall of the inner cavity 101, the pre-pressing mechanism 302 is installed at the upper end of the third connecting rod 301, when the third connecting rod 301 drives the pre-pressing mechanism 302 to rotate inward, so that the pre-pressing mechanism 302 gradually moves toward the direction where the optical disc 6 is located until being attached or even abutted, and thus the pre-pressing mechanism 302 can abut against the edge of the outer ring 603 from the side to play a second positioning role, otherwise, when the third connecting rod 301 drives the pre-pressing mechanism 302 to rotate outward, so that the pre-pressing mechanism 302 gradually moves away from the direction where the optical disc 6 is located, and the pre-pressing mechanism 302 is separated from the optical disc 6, and this positioning role can be released.
Specifically, the pre-pressing mechanism 302 includes a screw 3021, a pressure plate 3022, a nut 3023, and a spring 3024, the screw 3021 is inserted into the upper end of the third link 301, and the inner portion of the upper end of the third link 301 inevitably has a hole through which the screw 3021 is inserted, the hole diameter is larger than the outer diameter of the screw 3021, so that the screw 3021 can freely shuttle; one end of the screw 3021 near the second link 202 is fixedly connected to the pressure plate 3022, and the shape of the pressure plate 3022 may be an arc shape so as to be able to conform to the shape of the outer ring 603; the screw rod 3021 penetrates through the outer wall of the other end of the third link 301 to be in threaded connection with the inner wall of the nut 3023, and the nut 3023 limits the screw rod 3021 so that the screw rod 3021 cannot be separated from the hole; the spring 3024 is sleeved on the screw 3021 on the upper end of the third link 301 opposite to the pressure plate 3022.
The arrangement of the spring 3024 provides an elastic force for the pressure plate 3022, when the pressure plate 3022 abuts against the edge of the outer ring 603, the spring 3024 elastically deforms, and the elastic force of the spring 3024 further abuts against the edge of the outer ring 603, so that the firmness is improved, and on the other hand, the pre-pressure of the pressure plate 3022 is adjustable, which is not suitable for being too large, otherwise, the pre-pressure is strong due to the force, which results in the edge of the outer ring 603 being damaged, and is also not suitable for being too small, otherwise, the positioning of the outer ring 603 is not firm due to the weak force, and the pre-pressure is specifically adjusted as follows: as an example of the preload mechanism 302 on the left side, when the nut 3023 is rotated forward, the nut 3023 is gradually brought closer to the pressure plate 3022, and the amount of deformation of the spring 3024 is increased, and the preload is increased, whereas when the nut 3023 is rotated backward, the nut 3023 is gradually moved away from the pressure plate 3022, and the amount of deformation of the spring 3024 is decreased, and the preload is decreased, whereby the preload is adjusted by such a movement pattern.
The thickness of the pressure plate 3022 is less than or equal to that of the outer ring 603, a second pad 3025 is fixedly connected to a side surface of the pressure plate 3022 close to the second link 202, and the second pad 3025 may be made of a material, such as rubber, which is not easy to scratch the optical disc, and plays a role in protecting the optical disc.
The linkage mechanism 5 comprises a fourth connecting rod 501, the fourth connecting rod 501 is hinged on the inner wall of the inner cavity 101, specifically, the fourth connecting rod 501 is located above the third connecting rod 301 and below the second connecting rod 202, the upper end of the fourth connecting rod 501 is fixedly connected with a top rod 502, the top rod 502 is slightly bent, the material of the top rod 502 can be a material which is not easy to scratch the optical disc, such as rubber, and the function of protecting the optical disc is achieved; a bent rod 503 is hinged on the fourth link 501, the upper end of the bent rod 503 is hinged with the other end of the second link 202, a guide pillar 504 is fixedly connected to the lower end of the fourth link 501, a guide groove 505 is formed in the surface of the third link 301 close to the lower end of the third link, and the guide pillar 504 penetrates through the guide groove 505.
When the positioning functions of the center positioning mechanism 2 and the edge positioning mechanism 3 are established, the driving mechanism 4 drives the lifting rod 401 to move downwards, as shown in fig. 2, at this time, the second connecting rod 202 abuts against the upper surface of the inner ring 601 from top to bottom through the first cushion 203 to perform a first positioning function, the top rod 502 is located below the optical disc 6 and does not contact with the lower surface of the optical disc 6, the third connecting rod 301 drives the pre-pressing mechanism 302 to abut against the edge of the outer ring 603 to perform a second positioning function, and the curved rod 503 is tensioned on the inner wall of the inner ring 601 to perform a third positioning function.
When the positioning action of the center positioning mechanism 2 and the edge positioning mechanism 3 is released, the driving mechanism 4 drives the lifting rod 401 to move upward, the first connecting rod 201 drives the second connecting rod 202 to rotate, the first pad 203 is separated from the inner ring 601, the first positioning action is released, at this time, the size of the vertical projection area of the second connecting rod 202 gradually decreases back to the inner ring 601 area, and the optical disc 6 is finally taken out to avoid, as shown in fig. 3, when the lifting rod 401 continues to move upward, the fourth connecting rod 501 is driven to rotate by the bent rod 503, the ejector rod 502 rotates to gradually approach the lower surface of the optical disc 6 until the lower surface of the optical disc 6 is approached, as shown in fig. 4, at this time, the third connecting rod 301 is driven to expand outward by the abutment of the guide pillar 504 and the guide groove 505, and the pre-pressing mechanism 302 is driven to move away from the outer ring 603, the second positioning action is released, the lifting rod 401 moves upwards continuously to drive the top rod 502 to rotate continuously, the top rod 502 contacts with the lower surface of the optical disc 6, and then the optical disc 6 is lifted upwards for a certain distance, at this time, the upper edge of the inner ring 601 is shielded at about 1/3 height of the first cushion 203, the first cushion 203 is very close to but not in contact with the inner ring 601, the second connecting rod 202 inclines outwards slightly, the lower end of the bent rod 503 slightly exceeds the upper end thereof, in this embodiment, because the first connecting rod 201 is fixedly connected with a stop 204 near the outer wall where the first connecting rod 201 is hinged with the second connecting rod 202, the stop 204 limits the first connecting rod 201 to drive the second connecting rod 202 to rotate continuously, so that the second connecting rod 202 finally keeps the state of inclining outwards slightly, as shown in fig. 5, by the design of such a motion form, the optical disc 6 after the stamper can be more conveniently removed.
When the optical disc 6 to be compression molded is ready to be positioned, first the first link 201 and the second link 202 are aligned, then the inner ring 601 is sleeved on the periphery of the second link 202, as shown in fig. 5, the driving mechanism 4 drives the lifting rod 401 to descend, since the lower end of the curved rod 503 slightly exceeds the upper end thereof, the curved rod 503 can be driven to rotate outwards, and then the ejector rod 502 is driven to rotate, the height of the ejector rod 502 is reduced, the optical disc 6 is driven to gradually descend, and simultaneously, the third link 301 is driven to gradually close inwards through the abutment of the guide pillar 504 and the guide groove 505, as shown in fig. 4, the lifting rod 401 continues to descend until the pre-pressing mechanism 302 abuts against the edge of the outer ring 603, at this time, the ejector rod 502 is sunk into the inner cavity 101, as shown in fig. 3, the optical disc 6 falls onto the positioning table 1 due to its own weight, then, the lifting rod 401 continues to descend, and the second link 202 is kept in a slightly outward inclined state, so that the first link 201 can easily drive the second link 202 to rotate outward until the first pad 203 presses on the inner ring 601, as shown in fig. 2, and the positioning process is completed.
The working principle is as follows: when the accurate positioning equipment for the optical disc production line is used.
When the optical disc 6 to be compression molded is ready to be positioned, the first link 201 and the second link 202 are aligned first, then the inner ring 601 is sleeved on the periphery of the second link 202, as shown in fig. 5, the driving mechanism 4 drives the lifting rod 401 to descend, since the lower end of the curved rod 503 slightly exceeds the upper end thereof, the curved rod 503 can be driven to rotate outwards, and then the ejector rod 502 is driven to rotate, the height of the ejector rod 502 is reduced, the optical disc 6 is driven to gradually descend, meanwhile, the third link 301 is driven to gradually draw close inwards through the abutment of the guide pillar 504 and the guide groove 505, as shown in fig. 4, the lifting rod 401 continues to descend until the pre-compression mechanism 302 abuts against the edge of the outer ring 603, so as to perform a second positioning function, at this time, the ejector rod 502 sinks into the inner cavity 101, the curved rod 503 is tensioned on the inner wall of the inner ring 601 to perform a third positioning function, as shown in fig. 3, the optical disc 6 falls onto the positioning table 1 due to its own weight, and then the lifting rod 401 continues to descend, because the second link 202 is kept in a slightly inclined state towards the outer side, the first link 201 can easily drive the second link 202 to rotate towards the outer side until the first cushion 203 presses on the inner ring 601 to perform a first positioning function, as shown in fig. 2, so as to complete the positioning process;
when the positioning action of the center positioning mechanism 2 and the edge positioning mechanism 3 is released, the driving mechanism 4 drives the lifting rod 401 to move upward, the first connecting rod 201 drives the second connecting rod 202 to rotate, the first pad 203 is separated from the inner ring 601, the first positioning action is released, at this time, the size of the vertical projection area of the second connecting rod 202 gradually decreases back to the inner ring 601 area, and the optical disc 6 is finally taken out to avoid, as shown in fig. 3, when the lifting rod 401 continues to move upward, the fourth connecting rod 501 is driven to rotate by the bent rod 503, the ejector rod 502 rotates to gradually approach the lower surface of the optical disc 6 until the lower surface of the optical disc 6 is approached, as shown in fig. 4, at this time, the third connecting rod 301 is driven to expand outward by the abutment of the guide pillar 504 and the guide groove 505, and the pre-pressing mechanism 302 is driven to move away from the outer ring 603, the second positioning action is released, the lifting rod 401 moves upwards continuously to drive the ejector rod 502 to rotate continuously, the ejector rod 502 contacts with the lower surface of the optical disc 6, then the optical disc 6 is jacked upwards for a certain distance, the bent rod 503 is far away from the inner ring 601, and the third positioning action is released, as shown in fig. 5, the optical disc 6 after being molded can be taken away more conveniently through the design of the movement mode.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An accurate positioning device for an optical disc production line, comprising a positioning table (1), characterized in that: an upward through inner cavity (101) is formed in the positioning table (1), a central positioning mechanism (2) is installed above the middle of the inner cavity (101), edge positioning mechanisms (3) are installed on two sides of the inner cavity (101), a driving mechanism (4) is installed at the bottom of the positioning table (1), a lifting rod (401) is installed in the driving mechanism (4), the upper end of the lifting rod (401) is connected with the central positioning mechanism (2), and the central positioning mechanism (2) is connected with the edge positioning mechanisms (3) through a linkage mechanism (5);
the central positioning mechanism (2) comprises a first connecting rod (201) and a second connecting rod (202), the first connecting rod (201) is hinged to the upper end, penetrating out of the positioning table (1), of the lifting rod (401), and the end, far away from the lifting rod (401), of the first connecting rod (201) is hinged to one end of the second connecting rod (202);
the edge positioning mechanism (3) comprises a third connecting rod (301) and a prepressing mechanism (302), the lower end of the third connecting rod (301) is hinged to the inner wall of the inner cavity (101), and the prepressing mechanism (302) is installed at the upper end of the third connecting rod (301);
the pre-pressing mechanism (302) comprises a screw rod (3021), a pressure plate (3022), a nut (3023) and a spring (3024), the screw rod (3021) penetrates through the inside of the upper end of the third connecting rod (301), one end of the screw rod (3021) close to the second connecting rod (202) is fixedly connected with the pressure plate (3022), the screw rod (3021) penetrates through the outer wall of the other end of the third connecting rod (301) and is in threaded connection with the inner wall of the nut (3023), and the spring (3024) is sleeved on the screw rod (3021) on the opposite surface of the upper end of the third connecting rod (301) and the pressure plate (3022);
the linkage mechanism (5) comprises a fourth connecting rod (501), the fourth connecting rod (501) is hinged to the inner wall of the inner cavity (101), an ejector rod (502) is fixedly connected to the upper end of the fourth connecting rod (501), a bent rod (503) is hinged to the fourth connecting rod (501), the upper end of the bent rod (503) is hinged to the other end of the second connecting rod (202), a guide pillar (504) is fixedly connected to the lower end of the fourth connecting rod (501), a guide groove (505) is formed in the surface, close to the lower end of the third connecting rod (301), and the guide pillar (504) penetrates through the guide groove (505).
2. The precise positioning apparatus for an optical disc production line according to claim 1, wherein: the lower surface of the second connecting rod (202) is fixedly connected with a first cushion (203).
3. The precise positioning apparatus for an optical disc production line according to claim 2, wherein: the outer wall of the first connecting rod (201) close to the hinged position of the first connecting rod and the second connecting rod (202) is fixedly connected with a stop block (204).
4. The precise positioning apparatus for optical disc production line according to claim 3, wherein: a second cushion (3025) is fixedly connected to the side surface of the pressure plate (3022) close to the second connecting rod (202).
5. The precise positioning apparatus for an optical disc production line according to any one of claims 1 to 4, wherein: the driving mechanism (4) is any one of a worm gear lifter, an electric telescopic rod, a hydraulic cylinder and an air cylinder.
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| CN202011384599.5A CN112397099B (en) | 2020-12-01 | 2020-12-01 | A accurate positioning device for CD production line |
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| CN202011384599.5A CN112397099B (en) | 2020-12-01 | 2020-12-01 | A accurate positioning device for CD production line |
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| CN112397099A CN112397099A (en) | 2021-02-23 |
| CN112397099B true CN112397099B (en) | 2022-04-15 |
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