CN212515174U - High-precision automatic zoom lens - Google Patents
High-precision automatic zoom lens Download PDFInfo
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- CN212515174U CN212515174U CN202021384102.5U CN202021384102U CN212515174U CN 212515174 U CN212515174 U CN 212515174U CN 202021384102 U CN202021384102 U CN 202021384102U CN 212515174 U CN212515174 U CN 212515174U
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Abstract
The utility model relates to the technical field of lenses, in particular to an automatic zoom lens with high precision, which comprises a shell, a zoom lens cone and a rotation driving component, wherein the zoom lens cone is arranged in the shell, the zoom lens cone is provided with a signal induction part, the outer wall of the zoom lens cone is fixedly sleeved with a synchronization unit, and the rotation driving component is used for driving the synchronization unit to rotate; the shell is provided with a signal generating assembly in signal connection with the rotation driving assembly, the signal sensing assembly is used for triggering or blocking a signal of the signal generating assembly, and the position of the signal generating assembly is the multiplying power reference position of the variable-magnification lens barrel. The utility model provides a pair of automatic zoom lens that precision is high has solved the tradition and has leaned on the poor problem of mechanical positioning repeatability, has promoted the measurement accuracy of zoom lens.
Description
Technical Field
The utility model belongs to the technical field of the camera lens technique and specifically relates to indicate an automatic zoom lens that precision is high.
Background
The zoom lens mainly includes a manual type and an automatic type. The method is widely applied to the fields of biology, medicine, industry, environmental protection, materials, public security criminal investigation, monitoring, microelectronics, precision machining and the like. In particular, such as microscopes, video microscope systems, automatic inspection systems, and surveying and mapping instruments, lenses are the main components.
The automatic zoom lens generally uses a motor to generate a power source, and then drives the continuous zoom lens group to focus through a gear set. In the prior art, a motor is usually rotated to reach a mechanical upper limit and a mechanical lower limit as reference point positions, and the motor is controlled to stop or reversely rotate when reaching the reference point, in the mode, when the motor rotates to reach the mechanical upper limit and the mechanical lower limit, the motor is actually in a running state at the moment of reaching, a lens module in a lens also moves to the mechanical upper limit and the mechanical lower limit, external force is generated in the lens for limiting the movement of the lens module to cause the motor to be forced to stop rotating, the instantaneous current of the motor is increased suddenly at the moment, components in the motor are damaged, the service life is shortened, the reference point of the change of the magnification of the lens is obtained by the mechanical upper limit and the mechanical lower limit of the movement of the motor, the uncontrollable performance exists, the intelligence is not high, and the control precision of the.
Disclosure of Invention
The utility model discloses problem to prior art provides an automatic zoom camera lens that precision is high, when the signal response piece blocks or trigger signal takes place the signal of subassembly, then the multiplying power of zoom lens cone changes and reachs the reference point of settlement, thereby learn the magnification of current zoom lens cone, thereby can control the zoom lens cone and continue to rotate according to current direction of rotation and also or the antiport, thereby avoid appearing mechanical collision and damage automatic zoom camera lens, and can effectively improve the control and the response precision of zooming.
In order to solve the technical problem, the utility model discloses a following technical scheme: an automatic zoom lens with high precision comprises a zoom lens barrel, a rotation driving assembly and a signal generating assembly in signal connection with the rotation driving assembly, wherein the zoom lens barrel is provided with a signal sensing piece, the outer wall of the zoom lens barrel is fixedly sleeved with a synchronizing unit, and the rotation driving assembly is used for driving the synchronizing unit to rotate; the signal induction part is used for triggering or blocking a signal of the signal generation assembly, and the position of the signal generation assembly is a multiplying power reference position of the zooming lens barrel.
Preferably, when the signal of the signal generating assembly is triggered or blocked, the zoom lens barrel is in a state of minimum magnification.
Preferably, the signal generating assembly comprises a photoelectric sensor and a control board, the photoelectric sensor is in signal connection with the control board, and the control board is in signal connection with the rotation driving assembly; the signal sensing piece comprises a stop block fixedly arranged on the zoom lens cone, and the stop block moves to the photoelectric sensor to block or reflect an optical signal of the photoelectric sensor.
Preferably, the rotation driving assembly comprises a driving motor and a transmission gear set in driving connection with an output end of the driving motor, the synchronizing unit is a driven gear, and the signal generating assembly generates a sensing signal for controlling the driving motor to stop rotating after the signal sensing assembly triggers or blocks a signal of the signal generating assembly.
Preferably, the rotation driving assembly further comprises a gear shell, a fixed seat and a connecting piece, and the transmission gear set comprises a driving gear in driving connection with the output end of the driving motor and a transmission gear meshed with the driving gear; the connecting piece comprises a smooth column, a threaded column and a limiting part, the transmission gear is provided with a through hole, the smooth column is assembled in the through hole and is rotationally connected with the inner wall of the through hole, the limiting part is contacted with one side of the transmission gear, the threaded column is positioned on the other side of the transmission gear, and the threaded column is in threaded connection with the fixed seat; the transmission gear set is positioned in a gear shell, and the gear shell is fixedly connected with the fixed seat; the fixing seat is convexly provided with an installation block, and the installation block is fixedly connected with the shell.
Preferably, the automatic zoom lens further comprises a housing, the zoom lens barrel is mounted in the housing, and the housing is provided with a limiting hole for assembling the signal generating assembly.
Preferably, a first lens protection shell and a second lens protection shell are respectively arranged at two ends of the zoom lens barrel, the first lens protection shell is provided with a first limiting ring, the second lens protection shell is provided with a second limiting ring, and two ends of the shell are respectively abutted to the first limiting ring and the second limiting ring.
Preferably, the zoom lens barrel comprises a plurality of guide sliding blocks, a linear barrel, a curve barrel sleeved on the outer wall of the linear barrel and a plurality of groups of lens frames slidably arranged in the linear barrel; the two ends of the straight cylinder are respectively provided with a first convex ring and a second convex ring, and the curved cylinder is arranged between the first convex ring and the second convex ring; the linear cylinder is provided with a linear chute; the curve cylinder is provided with a plurality of curve chutes; the guide sliding block sequentially penetrates through the curve sliding groove and the linear sliding groove and then is connected with the lens frame; when the curve cylinder rotates, the guide sliding block is driven to move back and forth in the linear sliding groove.
Preferably, a retainer is arranged between the curve cylinder and the first convex ring and between the curve cylinder and the second convex ring; a plurality of balls are arranged on the retainer; both ends of the curve cylinder are provided with stainless steel wear-resistant pieces; the stainless steel wear-resistant sheet abuts against the balls on the retainer; the guide sliding block comprises a guide nail and a guide nail barrel; the lens frame is provided with a nail guide barrel groove used for being assembled with the guide nail; the nail guide cylinder is arranged in the linear sliding groove and the curved sliding groove in a sliding manner; the guide nail penetrates through the nail guide cylinder and then is connected with the nail guide cylinder groove.
Preferably, the second convex ring is fixedly arranged on the linear cylinder; the first convex ring is rotationally connected with the linear cylinder; the zoom lens barrel further comprises a tightness adjusting component for adjusting the rotating tightness between the curve barrel and the retainer; the tightness adjusting part comprises a bolt, a screw hole and an adjusting groove used for being assembled with the bolt; the screw hole is formed in the first convex ring; the adjusting groove is arranged on the linear cylinder; the bolt penetrates through the screw hole and then abuts against the adjusting groove.
The utility model has the advantages that:
the utility model provides a pair of automatic zoom lens that precision is high, specific position installation signal response piece on the zoom lens cone, for example install the signal response piece in the position of the minimum multiplying power of zoom lens cone, the signal generation subassembly is installed in the position that corresponds with signal response piece, when signal response piece blocks or triggers the signal of signal generation subassembly, the signal generation subassembly sends the sensing signal, control rotation drive assembly stop work, and then make the synchronization unit stop rotating, then the zoom lens cone no longer rotates, the zoom lens is located the state of minimum multiplying power this moment; when the multiplying power needs to be converted, the rotation driving assembly is started, the rotation driving assembly controls the synchronous unit to rotate, the multiplying power of the variable-power lens barrel is changed, the number of rotation turns of the variable-power lens barrel is controlled through the synchronous unit, the corresponding multiplying power can be obtained, and the process of accurately controlling the multiplying power conversion of the variable-power lens is achieved. Through the matching of the signal generating assembly and the signal sensing element, the problem of poor repeated precision of traditional mechanical positioning is solved, and the measurement precision of the zoom lens is improved; and the problem of mechanical collision caused by traditional mechanical positioning is avoided, and the damage of parts is reduced, so that the service life of the zoom lens is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the utility model after the housing is hidden.
Fig. 3 is a schematic structural diagram of the signal sensing member and the signal generating assembly of the present invention.
Fig. 4 is a schematic structural diagram of the housing of the present invention.
Fig. 5 is a schematic structural diagram of the rotation driving assembly and the synchronization unit of the present invention.
Fig. 6 is a schematic structural diagram of the connecting member of the present invention.
Fig. 7 is a schematic structural view of the zoom lens barrel of the present invention.
Fig. 8 is a schematic structural view of the variable magnification barrel of fig. 7 after a curve barrel is hidden.
Fig. 9 is a cross-sectional view at AA in fig. 7.
Fig. 10 is an enlarged view at B in fig. 9.
Fig. 11 is an enlarged view at C in fig. 9.
Fig. 12 is a schematic structural view of the retainer and the balls according to the present invention.
The reference numerals in fig. 1 to 12 include:
1-shell, 11-limiting hole, 2-zoom lens barrel, 21-guiding slide block, 211-guiding nail, 212-guiding nail barrel, 213-guiding nail barrel groove, 22-linear barrel, 221-first convex ring, 222-second convex ring, 223-linear sliding groove, 23-curved barrel, 231-curved sliding groove, 24-lens frame, 25-retainer, 251-ball, 26-stainless steel wear-resistant sheet, 271-screw hole, 272-adjusting groove, 3-rotation driving component, 31-driving motor, 32-transmission gear set, 33-driving gear, 34-transmission gear, 341-through hole, 35-gear shell, 36-fixing seat, 361-mounting block, 37-connecting piece, 38-smooth column, 39-threaded column, 40-a limiting part, 4-a signal sensing part, 5-a synchronization unit, 6-a signal generation assembly, 61-a photoelectric sensor, 62-a control panel, 8-a first lens protection shell, 81-a first limiting ring, 9-a second lens protection shell and 91-a second limiting ring.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
The automatic zoom lens with high precision provided by the embodiment, as shown in fig. 1 to 4, includes a zoom lens barrel 2, a rotation driving assembly 3, and a signal generating assembly 6 in signal connection with the rotation driving assembly 3, wherein the zoom lens barrel 2 is provided with a signal sensing member 4, the outer wall of the zoom lens barrel 2 is fixedly sleeved with a synchronizing unit 5, and the rotation driving assembly 3 is used for driving the synchronizing unit 5 to rotate; the signal sensing part 4 is used for triggering or blocking a signal of the signal generating component 6, and the position of the signal generating component 6 is a multiplying power reference position of the variable-magnification lens barrel 2. In practical application, the automatic zoom lens further comprises a shell 1, the zoom lens barrel 2 is arranged in the shell 1, and the shell 1 is provided with a limiting hole 11 for assembling the signal generating assembly 6.
As shown in fig. 7 and 8, the zoom lens barrel 2 includes a plurality of guide sliders 21, a linear barrel 22, a curved barrel 23 sleeved on an outer wall of the linear barrel 22, and a plurality of lens frames 24 slidably mounted in the linear barrel 22, the signal sensors 4 are fixed on the curved barrel 23, and the synchronization unit 5 is fixedly sleeved on an outer wall of the curved barrel 23.
Specifically, a signal sensing member 4 is installed at a specific position on the zoom lens barrel 2, for example, the signal sensing member 4 is installed at the position of the minimum magnification of the zoom lens barrel 2, the signal generating assembly 6 is installed at a position corresponding to the signal sensing member 4, when the signal sensing member 4 blocks or triggers the signal of the signal generating assembly 6, the signal generating assembly 6 sends a sensing signal to control the rotation driving assembly 3 to stop working, so that the synchronizing unit 5 stops rotating, the zoom lens barrel 2 does not rotate any more, and at this time, the zoom lens is in the state of the minimum magnification;
when the magnification needs to be converted, the rotation driving assembly 3 is started, preferably, the rotation driving assembly 3 comprises a driving motor 31 and a transmission gear 34 group 32, the synchronizing unit 5 is a driven gear, when the operation is performed, the driving motor 31 is started, the driving motor 31 drives the transmission gear 34 group 32 to rotate, the transmission gear 34 group 32 drives the driven gear to rotate in a manner of being meshed with the driven gear, namely, the synchronizing unit 5 drives the transmission gear 34 group 32 to rotate, then the synchronizing unit 5 drives the curve cylinder 23 of the zoom lens barrel 2 to rotate, and the curve cylinder 23 drives the linear cylinder 22 to act to change the distance between the lens frames 24 of the plurality of groups, so that the magnification of the zoom lens barrel 2 is changed; after the position when the signal generating assembly 6 senses the signal sensing member 4 is the position of the minimum magnification, the number of the pulses of the driving motor 31 is calculated, so that the number of the rotation turns of the driven gear can be obtained, the number of the rotation turns and the rotation distance of the zoom lens barrel 2 can be calculated, and the corresponding rotation distance corresponds to the corresponding lens magnification, so that the process of precisely controlling the magnification conversion of the zoom lens is realized. Of course, the signal sensing member 4 can also be installed at a position with other multiplying power than the minimum multiplying power, and the position with other multiplying power can also be obtained by calculating the pulse number of the driving motor 31, so that after the minimum multiplying power or the maximum multiplying power is reached, the driving motor 31 can be controlled to stop working.
The rotation number of turns of the zoom lens barrel 2 is controlled by the signal generation assembly 6 and the signal induction piece 4 in an induction matching manner and the driving motor 31, so that the corresponding magnification can be accurately obtained, and the process of accurately controlling the magnification conversion of the zoom lens is realized. Through the matching of the signal generating assembly 6 and the signal sensing piece 4, the problem of poor repeated precision of traditional mechanical positioning is solved, and the measurement precision of the zoom lens is effectively improved; and the problem of mechanical collision caused by traditional mechanical positioning is avoided, and the damage of parts is reduced, so that the service life of the zoom lens is prolonged.
Preferably, as shown in fig. 2 and 3, the signal generating assembly 6 of the present embodiment includes a photoelectric sensor 61 and a control board 62, the photoelectric sensor 61 is in signal connection with the control board 62, and the control board 62 is in signal connection with the rotation driving assembly 3; the signal sensing member 4 includes a stopper fixedly mounted on the zoom lens barrel 2, and the stopper moves to the position of the photoelectric sensor 61 to block or reflect the optical signal of the photoelectric sensor 61. The control panel 62 is in signal connection with an external control intelligent terminal, so that the magnification data of the automatic zoom lens can be conveniently transmitted to the control intelligent terminal.
Specifically, after the photoelectric sensor 61 starts to work, when the curved barrel 23 of the zoom lens barrel 2 rotates to drive the stopper to move to the photoelectric sensor 61, and the optical signal of the photoelectric sensor 61 is blocked or reflected, the photoelectric sensor 61 generates a sensing signal and sends the sensing signal to the control board 62, and if the sensed position of the stopper is at the minimum magnification position of the zoom lens barrel 2, the control board 62 sends a control signal to control the driving motor 31 to stop rotating or control the driving motor 31 to rotate in the opposite direction, so as to prevent the lens holder 24 in the zoom lens barrel 2 from moving to the mechanical limit position to cause mechanical collision, which may damage parts. In addition, the photoelectric sensor 61 adopts the principle of photoelectric effect, and the detection sensing precision of the signal is high, so that the precision of signal sensing can be effectively improved, namely, the sensing precision of a reference point of magnification is improved, and finally, the precision of magnification adjustment of the automatic zoom lens of the embodiment is improved. Of course, the stopper may be located at other positions on the zoom lens barrel 2, and the magnification of the zoom lens barrel 2 at the position is used as the reference magnification, and then the magnification of the zoom lens barrel 2 can be accurately controlled to change by controlling the number of turns of the driving motor 31.
According to the automatic zoom lens with high precision provided by the embodiment, as shown in fig. 1, fig. 2, fig. 5 and fig. 6, the rotation driving assembly 3 includes a driving motor 31 and a transmission gear 34 group 32 in driving connection with an output end of the driving motor 31, the synchronizing unit 5 is a driven gear, and after the signal sensing component 4 triggers or blocks a signal of the signal generating assembly 6, the signal generating assembly 6 generates a sensing signal for controlling the driving motor 31 to stop rotating. Preferably, the driving motor 31 is, but not limited to, a servo motor.
The rotation driving assembly 3 further includes a gear shell 35, a fixing seat 36 and a connecting piece 37, and the transmission gear 34 group 32 includes a driving gear 33 in driving connection with the output end of the driving motor 31 and a transmission gear 34 engaged with the driving gear 33; the connecting piece 37 comprises a smooth column 38, a threaded column 39 and a limiting part 40, the transmission gear 34 is provided with a through hole 341, the smooth column 38 is assembled in the through hole 341 and is rotationally connected with the inner wall of the through hole 341, the limiting part 40 is contacted with one side of the transmission gear 34, the threaded column 39 is positioned at the other side of the transmission gear 34, and the threaded column 39 is in threaded connection with the fixed seat 36; the transmission gear 34 group 32 is positioned in a gear shell 35, and the gear shell 35 is fixedly connected with a fixed seat 36 through a screw or a bolt; the fixing seat 36 is convexly provided with a mounting block 361, and the mounting block 361 is fixedly connected with the shell 1 through a screw or a bolt.
Specifically, the operating principle of the rotation driving assembly 3 is as follows: the driving motor 31 is started to drive the driving gear 33 to rotate, the driving gear 33 drives the transmission gear 34 to rotate in a meshing mode, then the transmission gear 34 drives the synchronization unit 5, namely the driven gear to rotate, and the driven gear further drives the curve cylinder 23 of the zoom lens barrel 2 to rotate, so that the change of the magnification of the zoom lens barrel 2 is realized; the connecting member 37 fixes the transmission gear 34 on the fixing seat 36, and a smooth connecting column is provided, so that the transmission gear 34 can smoothly rotate while being fixed on the fixing seat 36. The gear case 35 covers the transmission gear 34 group 32, so that the transmission gear 34 group 32 is prevented from being influenced by factors such as external force and the like, and the magnification calculation accuracy of the zoom lens is prevented from being reduced.
According to the automatic zoom lens with high precision provided by the embodiment, as shown in fig. 1 and fig. 2, a first lens protection shell 8 and a second lens protection shell 9 are respectively installed at two ends of the zoom lens barrel 2, the first lens protection shell 8 is provided with a first limiting ring 81, the second lens protection shell 9 is provided with a second limiting ring 91, and two ends of the shell 1 are respectively abutted to the first limiting ring 81 and the second limiting ring 91.
Specifically, install shell 1 between first spacing ring 81 and second spacing ring 91, rethread screw or threaded connection's mode is with first lens protective housing 8 and second lens protective housing 9 locking good for the equipment of automatic zoom lens becomes more simple and convenient.
As shown in fig. 7 to 12, the zoom lens barrel 2 includes a guide slider 21, a linear barrel 22, a curved barrel 23 sleeved on an outer wall of the linear barrel 22, and a plurality of lens frames 24 slidably mounted in the linear barrel 22, wherein the guide slider 21 is provided with a plurality of lens frames; a first convex ring 221 and a second convex ring 222 are respectively arranged at two ends of the linear cylinder 22, and the curved cylinder 23 is arranged between the first convex ring 221 and the second convex ring 222; the linear cylinder 22 is provided with a linear sliding groove 223; the curve cylinder 23 is provided with a plurality of curve chutes 231; the guide slide block 21 sequentially penetrates through the curved sliding groove 231 and the linear sliding groove 223 and then is connected with the lens frame 24; the curved cylinder 23 drives the guide slider 21 to move back and forth in the linear sliding groove 223 when rotating. The lens frame 24 is used for mounting an optical lens module.
Specifically, one end of the linear cylinder 22 will be fixedly mounted with an external device, which may be a camera or a microscope or the like. The first and second convex rings 221 and 222 are used to limit the position of the curve cylinder 23, so that the curve cylinder 23 always rotates along its axis between the first and second convex rings 221 and 222. During the use, when the curve section of thick bamboo 23 rotated, the axis that the curve spout 231 on the curve section of thick bamboo 23 also can be followed simultaneously and rotated, at this moment, guide slider 21 will move along curve spout 231, guide slider 21 correspondingly slides along straight line spout 223 front and back, consequently, the lens frame 24 of being connected with guide slider 21 can slide back and forth in straight line spout 223 simultaneously, different guide slider 21 moves along different curve spouts 231, therefore different lens frame 24 then changes the interval between, and then changes different optical module's interval, thereby realize the change of the multiplying power of zoom lens.
As shown in fig. 7 to 12, the retainers 25 are respectively disposed between the curve cylinder 23 and the first convex ring 221, and between the curve cylinder 23 and the second convex ring 222; a plurality of balls 251 are arranged on the retainer 25; both ends of the curve cylinder 23 are provided with stainless steel wear-resistant pieces 26; the stainless steel wear-resistant plate 26 abuts against the balls 251 on the retainer 25; the guide slider 21 comprises a guide pin 211 and a guide pin barrel 212; the lens frame 24 is provided with a nail guiding barrel groove 213 assembled with the nail guiding 211; the nail guiding barrel 212 is slidably arranged in the linear sliding groove 223 and the curved sliding groove 231; the guide nail 211 penetrates through the nail guide barrel 212 and then is connected with the nail guide barrel groove 213, and the lens frame 24, the linear barrel 22 and the curved barrel 23 are stably and reliably connected through the guide nail 211, the nail guide barrel 212 and the nail guide barrel groove 213, and are very convenient to install and disassemble. Preferably, the material of the linear cylinder 22 is stainless steel; the material of the curve cylinder 23 is copper.
Specifically, because the plurality of balls 251 are arranged on the retainers 25 at the two ends of the curve cylinder 23, the friction force between the two ends of the curve cylinder 23 and the first convex ring 221 and the second convex ring 222 can be greatly reduced, and the smooth rotation of the curve cylinder 23 is ensured, so that the repeated positioning accuracy of the zoom lens is improved, and the service life of the zoom lens is greatly prolonged. The stainless steel wear-resistant pieces 26 are additionally arranged at the two ends of the copper-made curve cylinder 23, so that in the rotating process, the stainless steel wear-resistant pieces 26 rotate along with the rotation of the curve cylinder 23 and are in contact with the balls 251, the wear resistance of the two ends of the curve cylinder 23 can be enhanced, and the service life is further prolonged.
In the automatic zoom lens with high precision provided by this embodiment, as shown in fig. 7 to 12, the second convex ring 222 is fixedly disposed on the linear cylinder 22; the first convex ring 221 is rotatably connected with the linear cylinder 22; the zoom lens barrel 2 further comprises a tightness adjusting component for adjusting the tightness of rotation between the curve barrel 23 and the retainer 25; the slack adjustment member includes a bolt, a screw hole 271, and an adjustment groove 272 for fitting with the bolt; the screw hole 271 is arranged on the first convex ring 221; the adjusting groove 272 is arranged on the linear cylinder 22; the bolt passes through the screw hole 271 and abuts against the adjusting groove 272.
Specifically, the balls 251 on the retainer 25 contact the first convex ring 221 and the stainless steel wear-resistant sheet 26 on the curve cylinder 23 simultaneously, so that by adjusting the first convex ring 221 to approach or separate from the retainer 25, the resistance of the curve cylinder 23 during rotation will be increased or decreased accordingly, and the curve cylinder 23 can be pressed or released, thereby achieving the purpose of different rotating hand feelings. The width of the adjustment groove 272 is larger than the diameter of the bolt, so that the position of the first protrusion ring 221 on the linear cylinder 22 can be adjusted. The adjustment is performed by sliding the first protruding ring 221 to a proper position on the linear cylinder 22, and then screwing the bolt into the screw hole 271 until the bolt tightly abuts against the inner wall of the adjustment groove 272, so as to fix the current position of the first protruding ring 221. When the position of the first protruding ring 221 needs to be adjusted again, the bolts need to be loosened.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides an automatic zoom lens that precision is high, includes zoom lens cone and rotation driving assembly, its characterized in that: the zoom lens barrel is provided with a signal induction part, the outer wall of the zoom lens barrel is fixedly sleeved with a synchronization unit, and the rotation driving component is used for driving the synchronization unit to rotate; the signal induction part is used for triggering or blocking a signal of the signal generation assembly, and the position of the signal generation assembly is a multiplying power reference position of the zooming lens barrel.
2. The automatic zoom lens with high precision as claimed in claim 1, wherein: when the signal of the signal generating assembly is triggered or blocked, the zoom lens barrel is in a state of minimum magnification.
3. The automatic zoom lens with high precision as claimed in claim 1, wherein: the signal generating assembly comprises a photoelectric sensor and a control panel, the photoelectric sensor is in signal connection with the control panel, and the control panel is in signal connection with the rotation driving assembly; the signal sensing piece comprises a stop block fixedly arranged on the zoom lens cone, and the stop block moves to the photoelectric sensor to block or reflect an optical signal of the photoelectric sensor.
4. The automatic zoom lens with high precision as claimed in claim 1, wherein: the rotation driving assembly comprises a driving motor and a transmission gear set in driving connection with the output end of the driving motor, the synchronizing unit is a driven gear, and the signal generating assembly generates a sensing signal for controlling the driving motor to stop rotating after the signal sensing assembly triggers or blocks the signal of the signal generating assembly.
5. The automatic zoom lens with high precision as claimed in claim 4, wherein: the rotation driving assembly further comprises a gear shell, a fixed seat and a connecting piece, the transmission gear set comprises a driving gear in driving connection with the output end of the driving motor and a transmission gear meshed with the driving gear, and the transmission gear is meshed with the synchronization unit;
the connecting piece comprises a smooth column, a threaded column and a limiting part, the transmission gear is provided with a through hole, the smooth column is assembled in the through hole and is rotationally connected with the inner wall of the through hole, the limiting part is contacted with one side of the transmission gear, the threaded column is positioned on the other side of the transmission gear, and the threaded column is in threaded connection with the fixed seat;
the transmission gear set is positioned in the gear shell, and the gear shell is fixedly connected with the fixed seat.
6. The automatic zoom lens with high precision as claimed in claim 1, wherein: the automatic zoom lens further comprises a shell, the zoom lens barrel is arranged in the shell, and a limiting hole for assembling the signal generating assembly is formed in the shell.
7. The automatic zoom lens with high precision as claimed in claim 6, wherein: the zoom lens barrel is characterized in that a first lens protection shell and a second lens protection shell are respectively arranged at two ends of the zoom lens barrel, the first lens protection shell is provided with a first limiting ring, the second lens protection shell is provided with a second limiting ring, and two ends of the shell are respectively abutted to the first limiting ring and the second limiting ring.
8. The automatic zoom lens with high precision as claimed in claim 1, wherein: the zoom lens cone comprises a guide sliding block, a linear barrel, a curve barrel sleeved on the outer wall of the linear barrel and a plurality of groups of lens frames arranged in the linear barrel in a sliding mode, wherein the guide sliding block is provided with a plurality of lens frames; the two ends of the straight cylinder are respectively provided with a first convex ring and a second convex ring, and the curved cylinder is arranged between the first convex ring and the second convex ring;
the linear cylinder is provided with a linear chute; the curve cylinder is provided with a plurality of curve chutes; the guide sliding block sequentially penetrates through the curve sliding groove and the linear sliding groove and then is connected with the lens frame; when the curve cylinder rotates, the guide sliding block is driven to move back and forth in the linear sliding groove.
9. The automatic zoom lens with high precision according to claim 8, wherein: retainers are arranged between the curve cylinder and the first convex ring and between the curve cylinder and the second convex ring; a plurality of balls are arranged on the retainer; both ends of the curve cylinder are provided with stainless steel wear-resistant pieces; the stainless steel wear-resistant sheet abuts against the balls on the retainer;
the guide sliding block comprises a guide nail and a guide nail barrel; the lens frame is provided with a nail guide barrel groove used for being assembled with the guide nail; the nail guide cylinder is arranged in the linear sliding groove and the curved sliding groove in a sliding manner; the guide nail penetrates through the nail guide cylinder and then is connected with the nail guide cylinder groove.
10. The automatic zoom lens with high precision according to claim 9, wherein: the second convex ring is fixedly arranged on the linear cylinder; the first convex ring is rotationally connected with the linear cylinder;
the zoom lens barrel further comprises a tightness adjusting component for adjusting the rotating tightness between the curve barrel and the retainer; the tightness adjusting part comprises a bolt, a screw hole and an adjusting groove used for being assembled with the bolt;
the screw hole is formed in the first convex ring; the adjusting groove is arranged on the linear cylinder; the bolt penetrates through the screw hole and then abuts against the adjusting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021384102.5U CN212515174U (en) | 2020-07-14 | 2020-07-14 | High-precision automatic zoom lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021384102.5U CN212515174U (en) | 2020-07-14 | 2020-07-14 | High-precision automatic zoom lens |
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| CN212515174U true CN212515174U (en) | 2021-02-09 |
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| CN202021384102.5U Active CN212515174U (en) | 2020-07-14 | 2020-07-14 | High-precision automatic zoom lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2616665A (en) * | 2022-03-18 | 2023-09-20 | Peng cheng lai | Driving mechanism with linear clamp for rotatable ring on camera lens |
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2020
- 2020-07-14 CN CN202021384102.5U patent/CN212515174U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2616665A (en) * | 2022-03-18 | 2023-09-20 | Peng cheng lai | Driving mechanism with linear clamp for rotatable ring on camera lens |
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