TW202127084A - Optical lens manufacturingsystem and optical lens manufacturing method using the same - Google Patents

Abstract

An optical lens manufacturing system includes a cylinder module, a photo interrupter, a picker, a driving device, a rod, a displacement detector and a controller. The photo interrupter is disposed on the cylinder module. The picker is disposed in the cylinder module and used to capture an optical lens. The driving device is configured to drive the cylinder module to move in an assembly direction toward a lens barrel to assemble the captured optical lens into the lens barrel. The rod is connected to the picker, and a moving path of the rod passes through the photo interrupter. The displacement detector is disposed on the driving device and configured to detect a moving stroke of the cylinder module. The controller is configured to: when the photo interrupter changes from an interruption state to a non-interruption state, record the moving stroke of the cylinder module; and calculate and obtain an assembly height of the optical lens in the lens barrel according to the recorded moving stroke.

Description

Optical lens manufacturing system and optical lens manufacturing method using the same

The invention relates to an assembly system and a manufacturing method using the same, and more particularly to an optical lens manufacturing system and an optical lens manufacturing method using the same.

In the conventional optical lens manufacturing process, usually the lens extractor continuously captures the optical lens and puts it into the lens barrel. After the manufacture of a batch of optical lenses is completed, check whether the assembly of the optical lenses is correct. However, the disadvantage of this quality inspection method is that it is discovered that the assembly is incorrect after a batch of optical lenses is manufactured, resulting in a large amount of heavy labor costs and/or scrap costs. Therefore, there is a need to propose a new quality inspection optical lens technology.

The present invention relates to an optical lens manufacturing system and an optical lens manufacturing method using the optical lens manufacturing system, which uses the signal change of a photo interrupter or a displacement detector to calculate the movement stroke of a press cylinder, and judges whether the optical lens is assembled or not based on the movement stroke correct. In this way, errors can be debugged instantly, avoiding the continued occurrence of incorrect assembly.

An embodiment of the present invention provides an optical lens manufacturing system. The optical lens manufacturing system includes a cylinder module, a photointerrupter, a lens extractor, a driving device, a rod, a displacement detector and a controller. The photointerrupter is adjacent to the cylinder module. The lens extractor is coupled to the pressure cylinder module. The driving device is coupled to the pressing cylinder module. The rod is connected to the lens extractor. The displacement detector is arranged on the driving device. The controller is electrically connected to the photointerrupter and can receive signals from the photointerrupter. In this way, the optical lens manufacturing system can detect errors in real time, avoiding the continued occurrence of incorrect assembly.

Another embodiment of the present invention provides an optical lens manufacturing system. The optical lens manufacturing system includes a cylinder module, a lens extractor, a driving device, a rod, a displacement sensor and a controller. The lens extractor is coupled to the pressing cylinder module. The driving device is coupled to the pressing cylinder module. The rod is connected to the lens extractor. The displacement sensor is arranged in the driving device and can send a first signal and a second signal. The controller is electrically connected to the displacement sensor and can receive the first signal and the second signal from the displacement sensor.

Another embodiment of the present invention provides a method for manufacturing an optical lens. The optical lens manufacturing method includes the following steps. An optical lens is captured by a lens extractor; a cylinder module is driven to move by a driving device; the movement of the cylinder module is detected by a displacement detector, and a signal corresponding to the movement is sent to A controller; and the controller calculates an assembly height of the optical lens in the lens barrel according to the recorded movement stroke. In this way, the optical lens manufacturing system can detect errors in real time, avoiding the continued occurrence of incorrect assembly.

In order to have a better understanding of the above and other aspects of the present invention, the following specific examples are given in conjunction with the accompanying drawings to describe in detail as follows:

Please refer to Figures 1 to 4. Figure 1 shows a schematic diagram of the optical lens manufacturing system 100 in a starting position according to an embodiment of the present invention, and Figure 2 shows the optical lens 10 of the optical lens manufacturing system 100 of Figure 1 A schematic diagram of contacting the lens barrel (or sleeve) 20. FIG. 3 illustrates a schematic diagram of the rod 170 of the optical lens manufacturing system 100 of FIG. 2 blocking the photointerrupter 120, and FIG. 4 illustrates the third The photo interrupter 120 in the figure is a schematic diagram of changing from a blocking state to a non-blocking state.

As shown in Figure 1, the optical lens manufacturing system 100 includes a cylinder module 110, a photo interrupter 120, a lens extractor 130, a vacuum source 135, a driving device 140, and a displacement detection A device (or displacement sensor) 150, a pressure resource 160, a rod 170, and a controller 180.

The cylinder module 110 is, for example, a pneumatic cylinder module or a hydraulic cylinder module. The embodiment of the present invention is illustrated by taking a pneumatic cylinder module as an example. The cylinder module 110 includes a cylinder 111 and a piston rod 112. The pressure cylinder 111 has an accommodating space 111r and a first opening 111a and a second opening 111b connected to the accommodating space 111r. The working fluid (such as gas or liquid) can enter the container through one of the first opening 111a and the second opening 111b. The accommodating space 111r flows out of the accommodating space 111r through the other of the first opening 111a and the second opening 111b to control (increase or decrease) the pressure in the accommodating space 111r. The piston rod 112 is slidably connected to the pressure cylinder 111. For example, the first end 1121 of the piston rod 112 is located in the accommodating space 111 r of the pressure cylinder 111, and the second end 1122 of the piston rod 112 is located outside the pressure cylinder 111.

The photo interrupter 120 includes a light emitting element 121 and a light receiving element 122 arranged opposite to each other. The light emitting element 121 continuously emits light L1 to the light receiving element 122. The state in which the light receiving element 122 receives the light L1 emitted by the light emitting element 121 is called the "non-blocking state", and when an object (such as the rod 170) is located between the light receiving element 122 and the light emitting element 121 When this object interrupts the transmission of light L1, this state is called "blocking state".

The lens extractor 130 is used to extract the optical lens. The lens extractor 130 can extract the optical lens through negative pressure, but can also extract the optical lens through techniques such as clamping. Specifically, the lens extractor 130 is, for example, a suction nozzle or a chuck. The vacuum source 135 can provide a negative pressure, so that the lens extractor 130 can suck the optical lens through the negative pressure. The driving device 140 is, for example, a motor module. For example, the driving device 140 includes a servo motor 141, a lead screw 142, and a motor driver 143. The motor driver 143 is used to provide a driving current I to drive the spindle of the servo motor 141 to rotate (the electric energy of the driving current I is converted into the rotational torque of the spindle) , To drive the lead screw 142 to rotate. The displacement detector 150 is, for example, an encoder, which can detect the number of rotations of the lead screw 142 of the servo motor 141. The pressure source 160 can provide pressure to drive the working fluid (such as gas or liquid) in the pressure cylinder connected to the pressure source 160.

As shown in FIGS. 1 and 2, the pressure cylinder 111 is connected to the lead screw 142 to be driven by the lead screw 142. For example, the pressure cylinder 111 is connected to the lead screw 142 in such a way that it can be translated relative to the lead screw 142 (for example, it can move along the assembly direction D1 shown in FIG. 2) but cannot rotate. In this way, when the lead screw 142 rotates, the pressure cylinder 111 is limited to being unable to rotate and can only move in translation (for example, it can only move in the assembly direction D1 shown in FIG. 2). The photointerrupter 120 is disposed adjacent to the cylinder module 110. For example, the light interrupter 120 is disposed on the pressure cylinder 111, such as being fixed to the outer side wall of the pressure cylinder 111. The vacuum source 135 is connected to the lens extractor 130, and the vacuum source 135 can provide negative pressure to the lens extractor 130, so that the lens extractor 130 can suck the optical lens 10 through the negative pressure. The lens extractor 130 is coupled to the pressing cylinder module 110. For example, the lens extractor 130 is connected to the second end 1122 of the piston rod 112 of the cylinder module 110. The driving device 140 is used to drive the press cylinder 111 to move along an assembly direction D1 (the assembly direction D1 is shown in Figure 2) facing the lens barrel 20 to assemble (or place) the captured optical lens 10 on the lens barrel 20 within the recess 20r. The displacement detector 150 is disposed on the driving device 140 to detect the movement of the pressure cylinder 111. For example, the displacement detector 150 is disposed adjacent to the main shaft (not shown) of the servo motor 141, which can detect the number of rotations of the main shaft (equal to or correspond to the number of rotations of the lead screw 142), and send the corresponding signal P1 to the motor Drive 143. The controller 180 obtains (or calculates) the number of rotations of the lead screw 142 according to the signal P1, and calculates the movement stroke of the lead screw 142 according to the number of rotations. The pressure source 160 is connected to the accommodating space 111r of the pressure cylinder 111. The pressure source 160 provides a working fluid (such as gas or liquid) into the accommodating space 111r, and can control the pressure rise and fall in the accommodating space 111r through the working fluid to drive the piston rod 112 to move relative to the pressure cylinder 111. The rod 170 is connected to (e.g. fixed) the lens extractor 130 or the piston rod 112, and the moving path of the rod 170 passes through the photo interrupter 120, for example, the light emitting element 121 and the light receiving element 122 passing through the photo interrupter 120 The area in between is used to selectively place the photointerrupter 120 in one of the "blocking state" and the "non-blocking state".

The controller 180 is used to: (1) obtain (or calculate) the movement stroke of the cylinder 111 along the assembly direction D1 according to the number of rotations of the lead screw 142; (2). When the state" changes to the "non-blocking state", record the movement stroke of the press cylinder 111; (3). According to the recorded movement stroke, calculate the assembly height (or assembly accuracy) of the optical lens 10 in the lens barrel 20.

An optical lens manufacturing method may include at least the following steps: capturing the optical lens 10 by the lens extractor 120; driving the cylinder module 110 to move by the driving device 140; and detecting the cylinder module by the displacement detector 150 110 moves and sends a signal corresponding to this movement to the controller 180; when the photointerrupter 120 changes from the "blocking state" to the "non-blocking state", the controller 180 responds to the signal sent by the displacement detector 150 Calculate and record the movement stroke ΔS of the cylinder module 110; and the controller 180 calculates the assembly height of the optical lens 10 in the lens barrel 20 according to the recorded movement stroke ΔS.

The following is a further example of the optical lens manufacturing method using the optical lens manufacturing system 100 of FIG. 1 with FIGS. 1 to 4. The position of the pressure cylinder 111 depicted in Figure 1 is defined as the starting position, and the position of the pressure cylinder 111 depicted in Figures 2 to 4 is defined as the first assembly position, the second assembly position, and the third assembly position. Location.

First, first, one of the lens barrels 20 on a lens barrel tray (not shown) is clamped to the work platform 30 with a clamp.

Then, as shown in Figure 1, the cylinder module 110 of the optical lens manufacturing system 100 can first be moved to a lens tray (not shown), and then the controller 180 controls the vacuum source 135 to provide negative pressure for lens capture The device 130 enables the picking port 130a of the lens picker 130 to pick up one of the several optical lenses 10 on the lens tray. When the lens extractor 130 is a suction nozzle, the extraction opening 130a is the suction opening of the suction nozzle.

Then, as shown in Figure 1, the cylinder module 110 can be moved above the lens barrel 20 on the work platform 30 (as shown in Figure 1), and the optical lens 10 is positioned directly above the lens barrel 20 . Although not shown in the figure, the lens barrel 20 can be clamped by a holder (not shown) to be fixed relative to the working platform 30. In the initial position shown in Figure 1, there is a first distance between the extraction port 130a of the lens extractor 130 and the end 171 of the rod 170 along the assembly direction D1 (the assembly direction D1 is shown in Figure 2) H1, and there is a second distance H2 between the capture port 130a of the lens extractor 130 and the photointerrupter 120 along the assembly direction D1. When the pressure cylinder 111 is in the starting position, the second distance H2 is greater than the first distance H1, and there is a distance difference ΔH between the second distance H2 and the first distance H1, so that the pressure cylinder 111 can be in the starting position. The interrupter 120 is in a "non-interrupting state". In addition, at the initial position shown in Figure 1, the pressure of the accommodating space 111r of the pressure cylinder 111 is approximately a preset pressure, such as 5 kg/cm ² . The preset pressure may be determined by the assembly specifications of different lens barrels and lenses (such as lens thickness, lens barrel size, etc.), and is not limited in the embodiment of the present invention.

Then, as shown in Figure 2, the controller 180 controls the servo motor 141 to drive the lead screw 142 to rotate to drive the cylinder 111 to approach the recess 20r of the lens barrel 20 in the assembly direction D1 until the optical lens 10 touches the bottom surface of the recess 20r 20b, the position of the pressure cylinder 111 at this time is defined as the first assembly position. The dimensional relationship between the optical lens 10 and the concave portion 20r is, for example, a loose fit or a transitional interference fit, but the embodiment of the present invention is not limited thereto. From the starting position (Figure 1) to the first assembly position (Figure 2), the optical lens 10, the cylinder module 110, the light interrupter 120, the lens extractor 130 and the rod 170 are integrated The assembly direction D1 moves, and there is no relative movement between each other. Since there is no relative movement between the rod 170 and the photo interrupter 120, the distance between the photo interrupter 120 and the end 171 of the rod 170 still maintains the distance difference ΔH in FIG. 1. In addition, during the process from the starting position (Figure 1) to the first assembly position (Figure 2), the controller 180 controls the pressure source 160 to maintain the pressure of the accommodating space 111r of the pressure cylinder 111 at the aforementioned preset pressure, Such as 5 kg/cm ² .

Then, as shown in FIG. 3, the controller 180 controls the servo motor 141 to continue to drive the lead screw 142 to rotate, so as to drive the pressure cylinder 111 to continue to move in the assembly direction D1. As shown in the figure, since the optical lens 10, the lens extractor 130, the piston rod 112, and the rod 170 are blocked by the lens barrel 20, when the piston rod 112 cannot continue to move along the assembly direction D1, the pressure cylinder 111 is opposed to the piston The rod 112 continues to move along the assembling direction D1 until the end 171 of the rod 170 blocks the photointerrupter 120. At this time, the position of the pressure cylinder 111 is defined as the second assembly position. The stroke of the pressure cylinder 111 from the first assembly position (Figure 2) to the second assembly position (Figure 3). The controller 180 controls the pressure source 160 to maintain the pressure in the accommodating space 111r of the pressure cylinder 111 at The aforementioned preset pressure, such as 5 kg/cm ² , enables the lens extractor 130 to maintain a stable pressure against the optical lens 10, so as to prevent the lens extractor 130 from crushing the optical lens 10.

Since the pressing cylinder 111 continues to move from the first assembly position (Figure 2) to the second assembly position (Figure 3), the probability that the optical lens 10 is correctly assembled into the recess 20r of the lens barrel 20 can be increased. In detail, at the first assembly position (Figure 2), if the posture of the optical lens 10 in the concave portion 20r is not correct (such as tilting, the reason may be impurities on the side wall of the concave portion 20r), because the pressure cylinder 111 moves from the first The set position continues to move to the second set position, so the optical lens 10 whose posture is not yet correct can be pressed into the concave portion 20r to force the optical lens 10 to be adjusted to the correct posture (as shown in Figure 3).

In Figure 3, when the cylinder 111 continues to move in the assembly direction D1, the rod 170 interrupts the photointerrupter 120 (the photointerrupter 120 changes from the "non-interrupting state" to the "interrupting state"). The protruding length h1 of the hour rod 170 relative to the photointerrupter 120 starts from 0, and becomes longer as the pressure cylinder 111 continues to move in the assembly direction D1. As the protruding length h1 is longer, it means that the blocking time for the rod 170 to block the photointerrupter 120 is also longer. However, the embodiment of the present invention does not limit the protruding length h1 of the rod 170 relative to the photointerrupter 120 and/or the blocking time of the rod 170 blocking the photointerrupter 120, which can be based on the assembly of the optical lens 10 and the lens barrel 20 Depends on specifications.

Then, as shown in Figure 4, after the photointerrupter 120 changes from the "non-interrupting state" to the "interrupted state", for example, the protrusion length h1 may be equal to or greater than 0, and the controller 180 controls the vacuum source 135 to release The negative pressure causes the lens extractor 130 to release the optical lens 10. Then, the controller 180 controls the servo motor 141 to drive the lead screw 142 to reverse to drive the cylinder 111 to move away from the optical lens 10 and the lens barrel 20 in a direction D2 opposite to the assembling direction D1 until the rod 170 leaves the light interrupter 120. At this time, the photointerrupter 120 returns from the "blocking state" to the "non-blocking state", and the position of the pressure cylinder 111 is defined as the third assembly position. As shown in the figure, when the photointerrupter 120 changes from the "interrupted state" (Figure 3) to the "non-interrupted state" (Figure 4), the controller 180 calculates based on the signal P1 of the displacement detector 150 The movement stroke ΔS of the lead screw 142, the movement stroke ΔS, for example, the movement stroke of the lead screw 142 from the initial position in FIG. 1 to the third assembly position in FIG. In detail, when the photointerrupter 120 is in the "blocking state" (Figure 3), the displacement detector 150 sends the current signal P1 (the first signal) to the controller 180; when the photointerrupter 120 is in In the "non-blocking state" (Fig. 4), the motion detector 150 sends the current signal P1 (the second signal) to the controller 180. The controller 180 calculates the travel distance ΔS of the lead screw 142 according to the first signal and the second signal of the displacement detector 150.

In one embodiment, the controller 180 controls the lead screw 142 to reverse slowly during the process of the pressure cylinder 111 from the second assembly position (Figure 3) to the third assembly position (Figure 4). In this way, it can increase The displacement detector 150 detects the accuracy of the number of revolutions of the lead screw 142, thereby increasing the accuracy of the calculated travel distance ΔS. In terms of speed, the lead screw 142 moves along the assembly direction D1 at a first rotational speed, and moves in the opposite direction D2 at a second rotational speed. The second rotational speed is less than the first rotational speed. The ratio is, for example, any value between 0.1 and 0.9. In addition, during the stroke of the pressure cylinder 111 from the second assembly position (Figure 3) to the third assembly position (Figure 4), the controller 180 controls the pressure source 160 to reduce the accommodating space 111r of the pressure cylinder 111 The pressure is still maintained at the aforementioned preset pressure, such as 5 kg/cm ² . In summary, the pressure in the cylinder 111 in the optical lens manufacturing process of the embodiment of the present invention maintains a fixed value.

Then, the controller 180 records the current travel distance ΔS (that is, the travel distance ΔS when the photointerrupter 120 changes from the "blocking state" (Fig. 3) to the "non-blocking state" (Fig. 4)) , And calculate the assembly height of the optical lens 10 in the lens barrel 20 according to the recorded movement stroke ΔS.

The following describes an embodiment of the present invention for calculating the assembly height. The controller 180 is further used to calculate the assembly height based on the recorded movement distance ΔS and a standard movement distance. The calculation process, for example, includes: the controller 180 obtains the travel distance between the recorded travel travel ΔS and the standard travel travel. When the stroke difference falls within the set range, it means that the assembly is correct, and the optical lens manufacturing system 100 continues to manufacture the next optical lens finished product. The aforementioned "correct assembly" includes, for example, that the thickness t1 of the optical lens 10 (thickness t1 is shown in FIG. 4) meets the standard lens and/or the relative position of the optical lens 10 and the lens barrel 20 meets the assembly specifications. However, when the stroke difference falls outside the set range, it indicates an assembly error, and the controller 180 outputs the warning signal S1 accordingly.

When an assembly error occurs, the optical lens manufacturing system 100 can take measures to prevent the assembly from continuing to occur, so as to prevent the incorrect assembly from continuing to occur. For example, in one embodiment, the optical lens manufacturing system 100 further includes an indicator (not shown). When an assembly error occurs, the controller 180 can send a warning signal S1 to the indicator, and the indicator is used to send an indication signal to warn the operator, and the operator can suspend the operation of the production line accordingly. In addition, the indicator is, for example, a sound generator, a vibrator, a light emitter, and the like. In another embodiment, as shown in FIG. 4, the controller 180 can send a warning signal S1 to the driving device 140 when it is assembled incorrectly, and the driving device 140 immediately stops operating accordingly to prevent the incorrect assembly from continuing to occur. For another example, in another embodiment, the assembled lens barrel 20 and optical lens 10 as shown in Figure 4 can be moved to the next workstation on the production line, such as a fixing station for the optical lens 10 and the lens barrel 20, Among them, the fixing method of the optical lens 10 and the lens barrel 20 is, for example, glue dispensing or hot melt. Then, the fixed optical lens 10 and the lens barrel 20 (referred to as the finished optical lens) can be collected into a finished product tray (not shown). After that, the controller 180 can additionally clamp the finished optical lens product corresponding to the warning signal S1 in the finished product tray (that is, the finished optical lens product with an incorrect assembly) to a disqualified tray, so that the finished optical lens products remaining in the finished product tray are all It is a finished product that is assembled correctly.

In one embodiment, a standard lens (not shown) and the lens barrel 20 can be assembled in advance using the same or similar method as the aforementioned method to obtain the movement stroke corresponding to the standard lens (referred to as the "standard movement stroke"). The optical lens manufacturing system 100 further includes a memory 190. The memory 190 can store the aforementioned at least one set of standard movement strokes, wherein different standard movement strokes correspond to different optical lens thicknesses, lens barrel sizes, and/or assembly specifications. In an embodiment, the memory 190 may be disposed in the controller 180, but may also be disposed separately from the controller 180.

In summary, although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.

100: Optical lens manufacturing system 10: Optical lens 20: lens barrel 20b: bottom surface 20r: recess 30: work platform 110: Cylinder module 111: Cylinder 111a: first opening 111b: second opening 111r: accommodating space 112: Piston rod 1121: first end 1122: second end 120: light interrupter 121: light emitting part 122: light receiver 130: lens extractor 130a: extraction port 135: Vacuum source 140: drive device 141: Servo motor 142: Lead screw 143: Motor Driver 150: Motion Detector 160: pressure source 170: Rod 171: End 180: Controller 190: Memory D1: Assembly direction D2: Opposite direction I: drive current h1: protruding length H1: first distance H2: second distance ΔH: distance difference L1: light P1: Signal ΔS: Moving stroke S1: Warning signal t1: thickness

FIG. 1 is a schematic diagram of an optical lens manufacturing system in a starting position according to an embodiment of the present invention. Figure 2 is a schematic diagram of the optical lens of the optical lens manufacturing system of Figure 1 just touching the lens barrel. Fig. 3 is a schematic diagram of the rod blocking light interrupter of the optical lens manufacturing system of Fig. 2; Fig. 4 shows a schematic diagram of the photointerrupter in Fig. 3 changing from a blocking state to a non-blocking state.

100: Optical lens manufacturing system

10: Optical lens

20: lens barrel

20r: recess

30: work platform

110: Cylinder module

111: Cylinder

111a: first opening

111b: second opening

111r: accommodating space

112: Piston rod

1121: first end

1122: second end

120: light interrupter

121: light emitting part

122: light receiver

130: lens extractor

130a: extraction port

135: Vacuum source

140: drive device

141: Servo motor

142: Lead screw

143: Motor Driver

150: Motion Detector

160: pressure source

170: Rod

171: End

180: Controller

190: Memory

L1: light

H1: first distance

H2: second distance

ΔH: distance difference

Claims (10)

An optical lens manufacturing system, including: One cylinder module; A light interrupter, adjacent to the cylinder module; A lens extractor, coupled to the cylinder module; A driving device coupled to the pressure cylinder module; A rod connected to the lens extractor; A displacement detector arranged on the driving device; and A controller is electrically connected to the photo interrupter and can receive signals from the photo interrupter. An optical lens manufacturing system, including: One cylinder module; A lens extractor, coupled to the cylinder module; A driving device coupled to the pressure cylinder module; A rod connected to the lens extractor; A displacement sensor, which is disposed on the driving device and can send a first signal and a second signal; and A controller is electrically connected to the displacement sensor and can receive the first signal and the second signal from the displacement sensor. The optical lens manufacturing system according to claim 1, wherein the controller is further used for: When the photointerrupter changes from a blocking state to a non-blocking state, recording a movement stroke of the cylinder module; and According to the recorded movement stroke, an assembly height of an optical lens in the lens barrel is calculated. The optical lens manufacturing system according to claim 1, wherein the controller is further used for: When the photointerrupter changes from a blocking state to a non-blocking state, recording a movement stroke of the cylinder module; and When a travel difference between the recorded travel travel and a standard travel travel falls outside a set range, a warning signal is issued. The optical lens manufacturing system according to claim 1, wherein there is a first distance between an extraction port of the lens extractor and the end of the rod along an assembling direction, and the lens extractor There is a second distance between the extraction port and the photointerrupter along the assembling direction; when the cylinder module is at an initial position, the second distance is greater than the first distance. The optical lens manufacturing system according to claim 1 or 2, wherein the controller is further used for: The pressure in the pressure cylinder module is controlled to maintain a preset pressure. The optical lens manufacturing system according to claim 1 or 2, wherein the press cylinder module further includes: A pressure cylinder; and A piston rod slidably connected to the pressure cylinder; Wherein, the lens extractor is arranged at the end of the piston rod outside the pressure cylinder, and the driving device is connected to the pressure cylinder. The optical lens manufacturing system according to claim 1, wherein one of the moving paths of the rod passes through the photo interrupter. The optical lens manufacturing system according to claim 1, wherein the displacement detector can detect the movement of the cylinder module, and can transmit a signal corresponding to the movement to the controller. A method for manufacturing an optical lens includes: Capture an optical lens by a lens extractor; Drive a cylinder module to move by a driving device; A displacement detector detects the movement of the cylinder module and sends a signal corresponding to the movement to a controller; When a photointerrupter changes from a blocking state to a non-blocking state, the controller calculates and records a movement stroke of the cylinder module according to the signal sent by the displacement detector; and The controller calculates an assembly height of the optical lens in the lens barrel according to the recorded movement stroke.

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