CN115112358A - Lens pre-thrust detection method - Google Patents
Lens pre-thrust detection method Download PDFInfo
- Publication number
- CN115112358A CN115112358A CN202211029225.0A CN202211029225A CN115112358A CN 115112358 A CN115112358 A CN 115112358A CN 202211029225 A CN202211029225 A CN 202211029225A CN 115112358 A CN115112358 A CN 115112358A
- Authority
- CN
- China
- Prior art keywords
- lens
- pushing
- product
- detected
- limiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/08—Testing mechanical properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
Abstract
The invention discloses a lens pre-thrust detection method, which is used for detecting the displacement between glass and a metal piece in a lens, adopts pushing mechanisms with different heights to sequentially push the corresponding lens to be detected, and detects the lens subjected to the pre-thrust through a probe; the method comprises the steps of feeding back a test pressure value in a pressure sensor and comparing the test pressure value with a standard pressure value range, judging whether pressure precision meets a standard or not in the pressure application process, avoiding damage to a product due to overlarge pressure and avoiding the condition that the detection condition cannot be achieved due to too small pressure; a plurality of detection mechanisms can be integrated in the same equipment, so that the number of driving shafts is reduced, and the equipment volume and the equipment cost are reduced; the product position can be limited in the detection process, and the influence of the integral movement of the product on the detection effect is avoided; the limit can be released after the test is finished, and the phenomenon that the glass of the lens to be tested is damaged by the pushing mechanism and the product is damaged is avoided; the degree of automation is high, detects the precision height, and work efficiency is high.
Description
Technical Field
The invention relates to the technical field of nonstandard automation equipment, in particular to a lens pre-thrust detection method.
Background
At present, the periphery of a mobile phone camera is provided with a metal sheet and a glass lens, and after the metal lens and the glass lens are assembled, firmness detection, namely pre-thrust detection, needs to be carried out on the assembled product. The traditional detection mode is that the detection is performed one by manually holding a detection instrument, so that the detection efficiency is low; and the volume of product is less, and the pressure of exerting in the test procedure is limited, and too big easy to cause the damage to the product of pressure, and the undersize can't reach detection effect, and the displacement volume between sheetmetal and the glass is less, can not exceed the regulation displacement volume, and is higher to personnel's requirement, and the manual detection has great error, and consequently, the detector ware of hand-held type is not applicable to the camera lens that needs high accuracy to detect. In addition, when the product is more, staff intensity of labour is big, and is higher to personnel's requirement, and the manual detection has great error, and enterprise's manufacturing cost is higher.
In the existing product air tightness detection operation, for example, chinese patent CN112985782A discloses a small displacement pre-thrust mechanism, which includes a driving assembly, a measuring device, a product fixing assembly and a moving device; the moving device comprises an X-axis moving device, a push block arranged on the X-axis moving device, a Z-axis moving device and a reverse push block arranged on the Z-axis moving device; the pushing block is provided with a first inclined surface, and the reverse pushing block is provided with a second inclined surface which is in contact with the first inclined surface; a pressure sensor is arranged on the Z-axis moving device; the measuring device comprises a measuring probe and a probe head. The detection equipment increases vertical displacement through the mutual motion between the push block and the reverse push block, and solves the problem that the high-precision pressure sensor cannot meet the application requirement due to small displacement; the sliding device is arranged on the measuring probe to realize automatic falling and measurement of the measuring probe, so that the detection time is shortened to a great extent, and the measurement efficiency is improved. However, the product can not be detected in batch, and the detection efficiency is low. Meanwhile, in the detection process of the device, the switching period between the execution units is long, the detection precision cannot be regulated and controlled, and the product is easy to damage. If the detection efficiency needs to be improved, the number of mechanisms needs to be increased, the cost is higher, the equipment volume is larger, and the production capacity of a factory building is limited.
Therefore, the method for detecting the displacement between the glass and the metal piece in the lens is developed, the problems of low detection precision and large detection result error of the existing pre-thrust detection method can be solved, the detection efficiency is further improved, and the method obviously has practical significance.
Disclosure of Invention
The invention aims to provide a method for detecting the displacement between glass and a metal piece in a lens.
In order to achieve the purpose, the invention adopts the technical scheme that: a lens pre-thrust detection method is used for detecting displacement generated between glass and a metal piece in a lens when the lens receives pre-thrust:
the method comprises the following steps that pre-thrust detection equipment is adopted, wherein the pre-thrust detection equipment comprises a product carrier, a thrust device, a testing device and a plurality of product limiting mechanisms, and the product limiting mechanisms are located between the thrust device and the testing device; the testing device comprises a first lifting device and a plurality of probes arranged on the first lifting device; the thrust device comprises a driving mechanism, a pressure sensor and a plurality of pushing mechanisms, and the heights of the pushing mechanisms are different; the number of the product limiting mechanisms and the number of the pushing mechanisms are the same as the number of the probes, and one pushing mechanism corresponds to one lens to be tested;
the lens pre-thrust detection method comprises the following steps:
s1, moving the lens to a product carrier for loading;
s2, limiting the lens to be detected on the product carrier by the product limiting mechanism;
s3, the first lifting device drives all the probes to move towards the direction close to the product carrier until all the probes are in contact with the lens to be tested, and a reference value on the probes is read;
s4, the driving mechanism drives the pushing mechanism to move until the highest pushing mechanism is contacted with the lens to be tested;
s5, detecting the lens to be detected which is in contact with the pushing mechanism, wherein in the detection process, the pushing mechanism continuously applies pressure until the value of the pressure sensor reaches a specified value, and recording the value as a test pressure value;
s6, judging whether the pressure precision in the step S5 meets the standard, if so, jumping to the step S8, and if not, jumping to the step S7;
s7, repeating the steps S4-S5 until the pressure accuracy meets the standard, and jumping to the step S8 after meeting the standard;
s8, reading the value of the probe on the lens to be tested;
s9, comparing the numerical value of the probe with the displacement standard value, judging whether the lens to be detected is NG or OK, and recording;
s10, after the detection is finished, the product limiting mechanism corresponding to the lens to be detected relieves the limitation on the lens to be detected;
s11, driving the pushing mechanism to move continuously in the direction close to the probe by the driving mechanism until the pushing mechanism at the next height contacts with the next lens to be detected, repeating the steps S5-S10, and completing the detection of the next lens to be detected and recording;
s12, repeating the step S11 until all the lenses to be detected corresponding to the pushing mechanisms are detected, driving the pushing mechanisms to move towards the direction close to the product carrier by the driving mechanisms, and placing the detected lenses back into the product carrier;
due to the fact that the heights of the pushing mechanisms are different, the running distance of each lens to be measured is different.
In the above, the testing device is located above the pushing device, a plurality of the probes are arranged in a straight line, a plurality of the product limiting mechanisms are arranged in a straight line, and a plurality of the pushing mechanisms are arranged in a straight line; the probes, the product limiting mechanisms and the pushing mechanisms are in one-to-one correspondence; the probe, the product limiting mechanism, the pushing mechanism and the central point of the lens in the lens to be tested are connected into a straight line, and the straight line is perpendicular to the straight line formed by the arrangement of the pushing mechanism.
Preferably, each product limiting mechanism comprises a limiting cylinder and a limiting pressing block positioned on the limiting cylinder, and a hollow hole for a probe to pass through is formed in the limiting pressing block; in step S2, the method for limiting the position of the lens to be measured on the product carrier by the product limiting mechanism includes: the limiting cylinder drives the limiting pressing block to descend to be in contact with a metal piece of the lens to be detected, and the metal piece is tightly pressed on the product carrier.
Preferably, the hollow hole in the limiting pressing block is a cylindrical hole penetrating through the limiting pressing block.
Preferably, the radius of the hollow hole is the same as the inside radius of the metal sheet, or the radius of the hollow hole is larger than the inside radius of the metal sheet and smaller than the outside radius of the metal sheet.
Preferably, in step S3, the probe includes a probe and a probe rod, one end of the probe rod is connected to the first lifting device, the other end of the probe rod is connected to the probe, and the first lifting device drives the probe to pass through the hollow hole in the limiting pressing block and then to contact with the glass of the lens to be measured.
Preferably, in step S3, the reference value obtained by the probe is compared with the first standard value to determine whether it meets the standard, if so, it is directly detected, and if not, it is adjusted to correspond to the first standard value.
Preferably, the first standard value is 0.
Preferably, the probe is in contact with the upper end face of the glass in the lens to be measured.
Preferably, the driving mechanism comprises a second lifting device and a driving shaft connected to the second lifting device, a pushing platform is connected to the driving shaft, and the pressure sensor and the plurality of pushing mechanisms are connected to the pushing platform; the pressure sensor is located between the push platform and the push mechanism.
Preferably, the height difference between two adjacent pushing mechanisms is the same.
Preferably, the height difference between two adjacent pushing mechanisms is 0.1 mm.
Preferably, the height of the pushing mechanism increases from left to right or from right to left in sequence.
Preferably, the pushing mechanism comprises a pushing rod and a connecting mechanism, the pushing rod is connected with the pushing platform through the connecting mechanism, and the pushing rods in the pushing mechanism are different in height; the lower end of the push rod is connected with a pressure sensor.
Preferably, the height difference between two adjacent push rods is 0.1 mm.
Preferably, the height of the push rod is increased from left to right or from right to left in sequence.
In the above, in steps S4-S5, the method for the driving mechanism to move the pushing mechanism includes: the second lifting device drives the driving shaft and the pushing platform to move until the push rod is in contact with the lower end face of the glass in the lens to be detected, the push rod continues to be pushed, and the pressure sensor on the pushing platform detects the pressure value of the push rod in real time and records the pressure value.
Preferably, in step S5, the test pressure value is obtained by feeding back the test pressure value through a PID formula.
In the above, PID is: abbreviations for proportionality, Integral, Differential; and (4) the pressure sensor acquires the pressure value in real time for feedback and brings the pressure value into a PID formula for correction to acquire a test pressure value.
Preferably, in step S6, the method for determining the pressure accuracy includes: comparing the test pressure value with the standard pressure value, and judging whether the test pressure value falls into the range of the standard pressure value; if the test pressure value falls into the range of the standard pressure value, the pressure precision is met; if the test pressure value does not fall within the range of the standard pressure value, the pressure precision is not met.
Preferably, the value of the standard pressure is 2.5kg ± 50 g.
In the above, the standard pressure is a manually set pressure range value, and applying the pressure within the pressure range value can meet the requirement of detecting the firmness between the glass and the metal sheet, and can also prevent the lens from being damaged by an excessive pressure.
Preferably, the standard value of the displacement in step 9 is a fixed threshold value or a dynamic threshold value set manually, and the dynamic threshold value is a mean value of values on each lens probe in the detection process.
In the foregoing, in the detection process, because the heights of the pushing mechanisms are different, the corresponding lenses to be detected are sequentially detected according to the sequence from high to low of the heights of the pushing mechanisms, before the next lens to be detected is detected, if the lens after the detection is completed is not subjected to limitation removal, when the next lens to be detected is detected, the pushing mechanisms continue to ascend, so that the lenses are easily damaged, and the lenses are damaged.
Preferably, the product carrier is provided with a plurality of rows of product placing areas, and each row of product placing areas is provided with the same number of product placing positions; the number of the product placing positions in each row of the product placing area is the same as that of the pushing mechanisms.
In the above, a carrier moving mechanism is further arranged in the direction of the product carrier, a loading station and a detection station are arranged on the carrier moving mechanism, the detection station is located above the thrust device, and the loading station is located far away from the thrust device; in the above, the moving direction of the product carrier on the carrier moving mechanism is perpendicular to the moving direction of the probe on the first lifting device.
In the above, after the product limiting mechanism in step S10 releases the limitation on the detected lens, the probe moves in the direction away from the lens to leave a space for the lens to move upward.
In the above, steps S2-S12 are performed to detect the lenses in the product placement area in the previous row of the product carrier, and after step S12 is completed, the product carrier moves in the horizontal direction toward the pushing mechanism until the center point of the lenses in the product placement area in the next row and the pushing rod in the pushing mechanism are located on the same straight line.
Preferably, the pre-thrust detection equipment further comprises a control system, wherein the control system is used for receiving data detected by the pressure sensor and the probe and driving the product carrier, the thrust device, the testing device and the product limiting mechanism to perform corresponding actions; and controlling the switching period of the execution units in the driving process.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the invention, the product is limited by the product limiting mechanism, the corresponding to-be-detected lenses are sequentially pushed by the pushing mechanisms with different heights, the lenses subjected to the pre-pushing force are detected by the probe, and the probe is calibrated, so that the detection precision is improved, the detection error caused by the problems of a pressure sensor or the probe is avoided, the detection error is smaller, and the precision is higher;
2. according to the invention, the test pressure value in the pressure sensor is fed back and compared with the standard pressure value range, whether the pressure precision meets the standard in the pressure application process is judged, the product is prevented from being damaged due to overlarge pressure, the condition that the detection condition cannot be reached due to undersize pressure is avoided, and the detection precision is further improved;
3. the invention sequentially pushes the corresponding lens to be detected through the plurality of pushing mechanisms with height difference arranged on the same driving shaft, integrates a plurality of detection mechanisms in the same equipment, reduces the number of the driving shafts, and reduces the equipment volume and the equipment cost;
4. according to the invention, through the product limiting mechanism, the position of the product can be limited in the detection process, and the influence on the detection effect caused by the integral movement of the product is avoided; the limit can be released after the test is finished, and the phenomenon that the glass of the lens to be tested is damaged by the pushing mechanism when the next lens to be tested is detected is avoided;
5. the invention has the advantages of no need of manual operation, high automation degree, high detection precision and high working efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that some of the drawings in the following description are embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a first embodiment of the present invention;
fig. 2 is a schematic overall structure diagram of a pre-thrust detection device according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a thrust unit according to a first embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a second lens to be tested in the first embodiment of the invention.
The method comprises the following steps of 1, pre-thrust detection equipment; 2. a product carrier; 3. a thrust device; 4. a testing device; 5. a product limiting mechanism; 6. a first lifting device; 7. a probe; 8. a drive mechanism; 9. a pressure sensor; 10. a pushing mechanism; 11. a lens; 12. a limiting pressing block; 13. a hollow bore; 14. a second lifting device; 15. a drive shaft; 16. pushing the platform; 17. a push rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
Example one
As shown in fig. 1 to 4, a method for detecting the pre-thrust of a lens 11 is used to detect the displacement between the glass and the metal component in the lens 11 when the lens 11 receives the pre-thrust:
the method comprises the following steps that a pre-thrust detection device 1 is adopted, wherein the pre-thrust detection device 1 comprises a product carrier 2, a thrust device 3, a testing device 4 and a plurality of product limiting mechanisms 5, and the product limiting mechanisms 5 are located between the thrust device 3 and the testing device 4; the testing device 4 comprises a first lifting device 6 and a plurality of probes 7 arranged on the first lifting device 6; the thrust device 3 comprises a driving mechanism 8, a pressure sensor 9 and a plurality of pushing mechanisms 10, wherein the heights of the pushing mechanisms 10 are different; the number of the product limiting mechanisms 5 and the number of the pushing mechanisms 10 are the same as the number of the probes 7, and one pushing mechanism 10 corresponds to one lens 11 to be tested;
the lens 11 pre-thrust detection method comprises the following steps:
s1, moving the lens 11 to the product carrier 2 for loading;
s2, limiting the lens 11 to be detected on the product carrier 2 by the product limiting mechanism 5;
s3, the first lifting device 6 drives all the probes 7 to move toward the product carrier 2 until all the probes 7 contact the lens 11 to be tested, and reads the reference value on the probes 7;
s4, the driving mechanism 8 drives the pushing mechanism 10 to move until the highest pushing mechanism 10 is contacted with the lens 11 to be tested;
s5, detecting the lens 11 to be detected which is in contact with the pushing mechanism 10, wherein in the detection process, the pushing mechanism 10 continuously applies pressure until the value of the pressure sensor 9 reaches a specified value, and recording the value as a test pressure value;
s6, judging whether the pressure precision in the step S5 meets the standard, if so, jumping to the step S8, and if not, jumping to the step S7;
s7, repeating the steps S4-S5 until the pressure accuracy meets the standard, and jumping to the step S8 after meeting the standard;
s8, reading the value of the probe 7 on the lens 11 to be tested;
s9, comparing the value of the probe 7 with the displacement standard value, judging whether the lens 11 to be detected is NG or OK, and recording;
s10, after the detection is finished, the product limiting mechanism 5 corresponding to the lens 11 to be detected relieves the limitation on the lens 11 to be detected;
s11, driving the pushing mechanism 10 to move continuously in the direction close to the probe 7 by the driving mechanism 8 until the pushing mechanism 10 at the next height contacts with the next lens 11 to be detected, repeating the steps S5-S10, and completing the detection and recording of the next lens 11 to be detected;
s12, repeating step S11 until all the lenses 11 to be detected corresponding to the pushing mechanisms 10 are detected, the driving mechanism 8 drives the pushing mechanisms 10 to move towards the direction close to the product carrier 2, and the detected lenses 11 are put back into the product carrier 2;
due to the difference in height of the pushing mechanism 10, the distance traveled by each lens 11 to be measured is different.
In the above, the testing device 4 is located above the pushing device 3, a plurality of the probes 7 are arranged in a straight line, a plurality of the product limiting mechanisms 5 are arranged in a straight line, and a plurality of the pushing mechanisms 10 are arranged in a straight line; the probes 7, the product limiting mechanisms 5 and the pushing mechanisms 10 correspond to one another one by one; the probe 7, the product limiting mechanism 5, the pushing mechanism 10 and the central point of the lens in the lens 11 to be tested are connected into a straight line, and the straight line is perpendicular to the straight line formed by the arrangement of the pushing mechanism 10.
Furthermore, each product limiting mechanism 5 comprises a limiting cylinder and a limiting pressing block 12 positioned on the limiting cylinder, and a hollow hole 13 for the probe 7 to pass through is formed in the limiting pressing block 12; in step S2, the method for limiting the position of the lens 11 to be measured on the product carrier 2 by the product limiting mechanism 5 includes: the limiting cylinder drives the limiting pressing block 12 to descend to be in contact with a metal piece of the lens 11 to be detected, and the metal piece is tightly pressed on the product carrier 2.
Further, the hollow hole 13 in the limiting pressing block 12 is a cylindrical hole penetrating through the limiting pressing block 12.
Further, the radius of the hollow hole 13 is the same as the inside radius of the metal sheet, or the radius of the hollow hole 13 is larger than the inside radius of the metal sheet and smaller than the outside radius of the metal sheet.
Further, in step S3, the probe 7 includes a probe head and a probe rod, one end of the probe rod is connected to the first lifting device 6, the other end of the probe rod is connected to the probe head, and the first lifting device 6 drives the probe head to pass through the hollow hole 13 in the limiting pressing block 12 and then to contact with the glass of the lens 11 to be measured.
Further, in step S3, the reference value obtained by the probe 7 is compared with the first standard value to determine whether it meets the standard, if so, the reference value is directly detected, and if not, the reference value is adjusted to correspond to the first standard value.
Further, the first standard value is 0.
Further, the probe contacts with the upper end surface of the glass in the lens 11 to be measured.
Further, the driving mechanism 8 comprises a second lifting device 14 and a driving shaft 15 connected to the second lifting device 14, the driving shaft 15 is connected to a pushing platform 16, and the pressure sensor 9 and the plurality of pushing mechanisms 10 are connected to the pushing platform 16; the pressure sensor 9 is located between the push platform 16 and the push mechanism 10.
Further, the height difference between two adjacent pushing mechanisms 10 is the same.
Further, the height difference between two adjacent pushing mechanisms 10 is 0.1 mm.
Further, the height of the pushing mechanism 10 increases from left to right or from right to left.
Further, the pushing mechanism 10 comprises a pushing rod 17 and a connecting mechanism, the pushing rod 17 is connected with the pushing platform 16 through the connecting mechanism, and the pushing rods 17 in the pushing mechanism 10 are different in height; the lower end of the push rod 17 is connected with the pressure sensor 9.
Further, the height difference between two adjacent push rods 17 is 0.1 mm.
Further, the height of the push rods 17 increases from left to right or from right to left in turn.
In the above, in the steps S4-S5, the method for the driving mechanism 8 to move the pushing mechanism 10 includes: the second lifting device 14 drives the driving shaft 15 and the pushing platform 16 to move until the pushing rod 17 contacts with the lower end surface of the glass in the lens 11 to be detected, the pushing rod 17 is continuously pushed, and the pressure sensor 9 on the pushing platform 16 detects the pressure value of the pushing rod 17 in real time and records the pressure value.
Further, in step S5, the test pressure value is fed back by a PID formula, and the test pressure value is obtained.
In the above, PID is: abbreviations for proportionality, Integral, Differential; and (3) the pressure sensor 9 acquires the pressure value in real time for feedback and brings the pressure value into a PID formula for correction to acquire a test pressure value.
Further, in step S6, the method for determining the pressure accuracy includes: comparing the test pressure value with the standard pressure value, and judging whether the test pressure value falls into the range of the standard pressure value; if the test pressure value falls into the range of the standard pressure value, the pressure precision is met; if the test pressure value does not fall within the range of the standard pressure value, the pressure precision is not met.
Further, the standard pressure has a value of 2.5 kg. + -. 50 g.
In the above, the standard pressure is a manually set pressure range value, and applying the pressure within the pressure range value can meet the requirement of detecting the firmness between the glass and the metal sheet, and can also prevent the lens 11 from being damaged by an excessive pressure.
Further, the standard value of the displacement in step 9 is a fixed threshold value or a dynamic threshold value set manually, and the dynamic threshold value is a mean value of values on the probe 7 of each lens 11 in the detection process.
In the foregoing, in the detection process, because the heights of the pushing mechanisms 10 are different, the corresponding lenses 11 to be detected are sequentially detected according to the sequence from the high height to the low height of the pushing mechanisms 10, before the next lens 11 to be detected is detected, if the lens 11 after the detection is completed is not subjected to limitation removal, when the next lens 11 to be detected is detected, the pushing mechanisms 10 continue to ascend, so that the lens 11 is easily damaged, and the damage to the lens 11 is caused.
Furthermore, a plurality of rows of product placing areas are arranged on the product carrier 2, and the same number of product placing positions are arranged in each row of product placing areas; the number of product placement positions in each row of the product placement region is the same as the number of pushing mechanisms 10.
As mentioned above, the direction of the product carrier 2 is further provided with a carrier moving mechanism, the carrier moving mechanism is provided with a feeding station and a detection station, the detection station is located above the thrust device 3, and the feeding station is located far away from the thrust device 3; in the above, the direction of movement of the product carrier 2 on the carrier moving mechanism is perpendicular to the direction of movement of the probe 7 on the first lifting device 6.
Further, in step S10, after the product limiting mechanism 5 releases the limitation on the detected lens 11, the probe 7 moves in a direction away from the lens 11 to leave a space for the lens 11 to move upward.
In the above, steps S2-S12 are performed to detect the lens 11 in the product placement area in the previous row of the product carrier 2, and after step S12 is completed, the product carrier 2 moves in the horizontal direction toward the pushing mechanism 10 until the center point of the lens 11 in the product placement area in the next row and the pushing rod 17 in the pushing mechanism 10 are located on the same straight line.
Further, the pre-thrust detection equipment 1 further comprises a control system, wherein the control system is used for receiving data detected by the pressure sensor 9 and the probe 7 and driving the product carrier 2, the thrust device 3, the testing device 4 and the product limiting mechanism 5 to perform corresponding actions; and controlling the switching period of the execution units in the driving process.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A lens pre-thrust detection method is used for detecting displacement generated between glass and metal pieces in a lens when the lens receives pre-thrust, and is characterized in that:
the method comprises the following steps that pre-thrust detection equipment is adopted, wherein the pre-thrust detection equipment comprises a product carrier, a thrust device, a testing device and a plurality of product limiting mechanisms, and the product limiting mechanisms are located between the thrust device and the testing device; the testing device comprises a first lifting device and a plurality of probes arranged on the first lifting device; the thrust device comprises a driving mechanism, a pressure sensor and a plurality of pushing mechanisms, and the heights of the pushing mechanisms are different; the number of the product limiting mechanisms and the number of the pushing mechanisms are the same as the number of the probes, and one pushing mechanism corresponds to one lens to be tested;
the lens pre-thrust detection method comprises the following steps:
s1, moving the lens to a product carrier for loading;
s2, limiting the lens to be detected on the product carrier by the product limiting mechanism;
s3, the first lifting device drives all the probes to move towards the direction close to the product carrier until all the probes are in contact with the lens to be tested, and a reference value on the probes is read;
s4, the driving mechanism drives the pushing mechanism to move until the highest pushing mechanism is contacted with the lens to be tested;
s5, detecting the lens to be detected which is in contact with the pushing mechanism, wherein in the detection process, the pushing mechanism continuously applies pressure until the value of the pressure sensor reaches a specified value, and recording the value as a test pressure value;
s6, judging whether the pressure precision in the step S5 meets the standard, if so, jumping to the step S8, and if not, jumping to the step S7;
s7, repeating the steps S4-S5 until the pressure accuracy meets the standard, and jumping to the step S8 after meeting the standard;
s8, reading the value of the probe on the lens to be tested;
s9, comparing the numerical value of the probe with the displacement standard value, judging whether the lens to be detected is NG or OK, and recording;
s10, after the detection is finished, the product limiting mechanism corresponding to the lens to be detected relieves the limitation on the lens to be detected;
s11, driving the pushing mechanism to move continuously in the direction close to the probe by the driving mechanism until the pushing mechanism at the next height contacts with the next lens to be detected, repeating the steps S5-S10, and completing the detection of the next lens to be detected and recording;
s12, repeating the step S11 until all the lenses to be detected corresponding to the pushing mechanisms are detected, driving the pushing mechanisms to move towards the direction close to the product carrier by the driving mechanisms, and placing the detected lenses back into the product carrier;
due to the fact that the heights of the pushing mechanisms are different, the running distance of each lens to be measured is different.
2. The lens pre-thrust detection method according to claim 1, wherein each product limiting mechanism comprises a limiting cylinder and a limiting press block positioned on the limiting cylinder, and a hollow hole for a probe to pass through is formed in the limiting press block; in step S2, the method for limiting the position of the lens to be measured on the product carrier by the product limiting mechanism includes: the limiting cylinder drives the limiting pressing block to descend to be in contact with a metal piece of the lens to be detected, and the metal piece is tightly pressed on the product carrier.
3. The lens pre-thrust detection method according to claim 2, wherein in step S3, the probe includes a probe head and a probe rod, one end of the probe rod is connected to the first lifting device, and the other end of the probe rod is connected to the probe head, and the first lifting device drives the probe head to contact with the glass of the lens to be detected after the probe head passes through the hollow hole in the limiting pressing block.
4. The lens pre-thrust detection method according to claim 1, wherein the driving mechanism comprises a second lifting device and a driving shaft connected to the second lifting device, a pushing platform is connected to the driving shaft, and the pressure sensor and the plurality of pushing mechanisms are connected to the pushing platform; the pressure sensor is located between the push platform and the push mechanism.
5. The lens pre-thrust detection method according to claim 1, wherein the height difference between two adjacent pushing mechanisms is the same.
6. The lens pre-thrust detection method according to claim 5, wherein the pushing mechanism comprises a pushing rod and a connecting mechanism, the pushing rod is connected with the pushing platform through the connecting mechanism, and the pushing rods in the pushing mechanism are different in height; the lower end of the push rod is connected with a pressure sensor.
7. The lens pre-thrust detection method according to claim 1, wherein in step S5, the test pressure value is obtained by feeding back the test pressure value through a PID formula.
8. The lens pre-thrust detection method according to claim 1, wherein in step S6, the pressure accuracy determination method includes: comparing the test pressure value with the standard pressure value, and judging whether the test pressure value falls into the range of the standard pressure value; if the test pressure value falls into the range of the standard pressure value, the pressure precision is met; if the test pressure value does not fall within the range of the standard pressure value, the pressure precision is not met.
9. The lens pre-thrust detection method according to claim 1, wherein the displacement standard value in step 9 is a manually set fixed threshold or a dynamic threshold, and the dynamic threshold is a mean value of values on each lens probe in the detection process.
10. The method as claimed in claim 1, wherein the product carrier has a plurality of rows of product placement areas, each row of product placement areas having a same number of product placement positions; the number of the product placing positions in each row of the product placing area is the same as that of the pushing mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211029225.0A CN115112358B (en) | 2022-08-26 | 2022-08-26 | Lens pre-thrust detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211029225.0A CN115112358B (en) | 2022-08-26 | 2022-08-26 | Lens pre-thrust detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115112358A true CN115112358A (en) | 2022-09-27 |
| CN115112358B CN115112358B (en) | 2022-11-22 |
Family
ID=83335678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211029225.0A Active CN115112358B (en) | 2022-08-26 | 2022-08-26 | Lens pre-thrust detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115112358B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483101A (en) * | 2014-12-30 | 2015-04-01 | 苏州逸美德自动化科技有限公司 | Efficient full-automatic lens thrust test machine |
| CN211452690U (en) * | 2019-12-31 | 2020-09-08 | 东莞市大研自动化设备有限公司 | Camera lens thrust detection mechanism |
| CN112985782A (en) * | 2021-04-27 | 2021-06-18 | 苏州鼎纳自动化技术有限公司 | Small-displacement pre-thrust mechanism |
| CN113238390A (en) * | 2021-06-15 | 2021-08-10 | 深圳双十科技有限公司 | Eight-station automatic focusing machine for optical lens |
| CN214426947U (en) * | 2021-01-28 | 2021-10-19 | 长春瑞莱特光电技术有限公司 | Optical lens supplied material inspection device |
| CN113532763A (en) * | 2021-09-17 | 2021-10-22 | 苏州鼎纳自动化技术有限公司 | Air tightness detection device and detection method thereof |
| CN215065793U (en) * | 2021-07-02 | 2021-12-07 | 浙江舜宇光学有限公司 | Lens compression detection device |
-
2022
- 2022-08-26 CN CN202211029225.0A patent/CN115112358B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483101A (en) * | 2014-12-30 | 2015-04-01 | 苏州逸美德自动化科技有限公司 | Efficient full-automatic lens thrust test machine |
| CN211452690U (en) * | 2019-12-31 | 2020-09-08 | 东莞市大研自动化设备有限公司 | Camera lens thrust detection mechanism |
| CN214426947U (en) * | 2021-01-28 | 2021-10-19 | 长春瑞莱特光电技术有限公司 | Optical lens supplied material inspection device |
| CN112985782A (en) * | 2021-04-27 | 2021-06-18 | 苏州鼎纳自动化技术有限公司 | Small-displacement pre-thrust mechanism |
| CN113238390A (en) * | 2021-06-15 | 2021-08-10 | 深圳双十科技有限公司 | Eight-station automatic focusing machine for optical lens |
| CN215065793U (en) * | 2021-07-02 | 2021-12-07 | 浙江舜宇光学有限公司 | Lens compression detection device |
| CN113532763A (en) * | 2021-09-17 | 2021-10-22 | 苏州鼎纳自动化技术有限公司 | Air tightness detection device and detection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115112358B (en) | 2022-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109990692B (en) | Flatness detection device for building board machining | |
| CN109540046B (en) | Full-automatic kiln roller rod detection device | |
| CN115112358B (en) | Lens pre-thrust detection method | |
| CN213208857U (en) | A pressure equipment degree of depth detection device for motor stator | |
| JP2001249060A (en) | Apparatus for detecting center of gravity and apparatus for inspecting test body | |
| CN112198218A (en) | Full-automatic sample adding system and mechanical arm position calibration device and method thereof | |
| CN114993192B (en) | Automatic thickness measuring equipment in lithium battery industry | |
| CN113865521B (en) | Device for detecting flatness of inner side of template and operation method | |
| CN215677943U (en) | Rockwell hardness tester based on indentation depth | |
| CN112762834B (en) | Multifunctional on-line detection equipment | |
| CN115046501A (en) | Furniture surface flatness detection device in production process | |
| CN213274203U (en) | Cover plate bending detection device | |
| CN113984885A (en) | Bearing ring full-surface eddy current detection equipment | |
| CN114812464A (en) | Product height testing mechanism | |
| CN114701587A (en) | Ice wheel type mobile robot chassis for detection | |
| CN218884912U (en) | Full-automatic gauge block comparator | |
| CN218765224U (en) | Glass flatness testing machine | |
| CN218973388U (en) | Novel basic detonator filling line drug loading quantity and drug height inspection device | |
| CN219776688U (en) | Basalt brick flatness rapid detection device | |
| CN218973425U (en) | Multi-station full-automatic waterproof material size change rate measuring system | |
| CN217181000U (en) | Photoelectric direct-reading module testing device | |
| CN213337446U (en) | Full-automatic sample adding system and mechanical arm position calibration device thereof | |
| CN218524132U (en) | Worm step thickness detection device | |
| CN217586914U (en) | Automatic detection line for rapid production of iron cores | |
| CN214200041U (en) | Multifunctional on-line detection equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |