Lens stray light detector

Abstract

The utility model relates to the technical field of lens detection, in particular to a lens stray light detector, which comprises a frame. The rack is provided with a lens feeding mechanism, a lens conveying mechanism, a lens clamping mechanism and a stray light detection mechanism. The lens clamping mechanism comprises a clamping seat, a fixed table and a driving shaft; the driving shaft is rotationally arranged on the fixed table; the driving shaft is provided with a clamping table at the top of the fixed table; a first pneumatic clamping jaw and a second pneumatic clamping jaw are symmetrically arranged at the two ends of the clamping table. The driving shaft is provided with an upper limiting pin at the bottom of the clamping table; an upper limiting groove is formed in the top of the fixing table. By arranging the lens feeding mechanism, the lens conveying mechanism, the lens clamping mechanism and the stray light detection mechanism, automatic stray light detection of the lens can be realized, and the lens clamping mechanism can stably place the lens on a positioning groove through the cooperation of an upper limiting pin and an upper limiting groove, so that the lens clamping mechanism can stably place the lens on the positioning groove. Therefore, the detection accuracy can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lens detection, in particular to a lens stray light detector. Background Art

[0002] In the production process of optical lenses, stray light detection is an important step to ensure the quality of lenses. The purpose of stray light detection is to identify and eliminate possible stray light in the optical system to ensure the imaging quality and performance of the lenses. Traditional stray light detection usually relies on manually placing each lens into the detection device for inspection. This method is inefficient and difficult to meet the requirements of modern high-efficiency production.

[0003] The process of manually placing and removing lenses takes a long time and cannot meet the needs of large-scale production. In addition, due to human factors, there may be errors in the placement position and angle of the lenses, affecting the accuracy and consistency of the detection results. And long-term repetitive operations are likely to cause fatigue of the operators, further affecting work efficiency and detection accuracy. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lens stray light detector for the above deficiencies in the prior art.

[0005] The purpose of the utility model is achieved through the following technical solutions: a lens stray light detector, including a frame; the frame is provided with a lens loading mechanism, a lens transmission mechanism, a lens clamping mechanism and a stray light detection mechanism; the lens transmission mechanism is arranged between the lens loading mechanism and the lens clamping mechanism;

[0006] The lens clamping mechanism includes a clamping seat arranged on the frame, a fixed table arranged on the clamping seat, and a driving shaft that is vertically movably arranged on the fixed table; the driving shaft is rotatably arranged on the fixed table; the driving shaft is provided with a clamping table at the top of the fixed table; the two ends of the clamping table are symmetrically provided with a first pneumatic gripper and a second pneumatic gripper; the driving shaft is provided with an upper limit pin at the bottom of the clamping table; the top of the fixed table is provided with an upper limit groove that cooperates with the upper limit pin.

[0007] The utility model is further arranged as follows: the lens loading mechanism includes a loading bracket that is vertically movably arranged on the frame, an X-axis loading linear module arranged on the frame along the X-axis direction, a loading seat arranged at the output end of the X-axis loading linear module, and a loading tray arranged on the loading seat; the X-axis loading linear module is used to drive the loading seat to move between the loading bracket and the lens transmission mechanism; the loading bracket is provided with a plurality of loading trays along the height direction.

[0008] The present utility model is further configured such that the lens transmission mechanism includes an X-axis transmission linear module disposed on the frame along the X-axis direction, a Y-axis transmission linear module disposed at the output end of the X-axis transmission linear module along the Y-axis direction, and a transmission seat disposed at the output end of the Y-axis transmission linear module.

[0009] The present utility model is further configured such that the transmission seat is provided with a first slide rail and a second slide rail in the height direction; a first slider and a second slider are respectively slidably disposed on the first slide rail and the second slide rail; a first vacuum suction nozzle and a second vacuum suction nozzle are respectively connected to the first slider and the second slider; the transmission seat is provided with a transmission motor, a lever member, a first connecting rod, and a second connecting rod; the output end of the transmission motor is connected to the middle of the lever member; one end of the first connecting rod is hinged to one end of the lever member; the other end of the first connecting rod is hinged to the first slider; one end of the second connecting rod is hinged to the other end of the lever member; the other end of the second connecting rod is hinged to the second slider.

[0010] The present utility model is further configured such that the stray light detection mechanism includes a column disposed on the bracket, a stray light detector disposed on the column, and a positioning assembly disposed at the bottom of the stray light detector.

[0011] The present utility model is further configured such that the positioning assembly includes a positioning seat disposed on the frame, a positioning table movably lifted on the positioning seat, a rotating platform rotatably disposed on the positioning table, and a third pneumatic gripper disposed on the positioning table; a positioning groove is provided at the top of the rotating platform; a first positioning arm and a second positioning arm are provided at the output end of the third pneumatic gripper; the first positioning arm and the second positioning arm are movably disposed at the top of the positioning groove;

[0012] The positioning seat is provided with a positioning cylinder for driving the lifting of the positioning table; the positioning table is provided with a positioning motor for driving the rotation of the rotating platform.

[0013] The present utility model is further configured such that the bracket is rotatably provided with a lead screw in the height direction; a nut is sleeved on the lead screw; the nut is connected to the stray light detector; the stray light detector is slidably disposed on the column.

[0014] The present utility model is further configured such that the clamping seat is connected to a base through a lifting rod; a lifting seat is slidably disposed on the lifting rod; the lifting seat is provided with a clamping motor; the output end of the clamping motor is connected to a driving shaft; the base is provided with a clamping cylinder; the output end of the clamping cylinder is connected to the lifting seat.

[0015] The present utility model is further configured such that the frame is provided with a limiting post at the top of the first pneumatic gripper or the second pneumatic gripper.

[0016] The present utility model is further configured such that a lower limit pin is provided at the bottom of the driving shaft on the clamping table; a lower limit groove cooperating with the lower limit pin is provided at the bottom of the fixed table.

[0017] Advantages of the present utility model: By providing a lens loading mechanism, a lens transmission mechanism, a lens clamping mechanism, and a stray light detection mechanism, the present utility model can achieve automatic stray light detection of the lens. Moreover, through the cooperation of the upper limit pin and the upper limit groove, the lens clamping mechanism can stably place the lens on the positioning groove, thereby ensuring the accuracy of the detection. Description of the Drawings

[0018] The utility model will be further described with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation to the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the following drawings.

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the transmission seat of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the lens clamping mechanism of the present utility model;

[0022] Figure 4 is a schematic structural diagram of the positioning assembly of the present utility model;

[0023] Wherein: 1, frame; 2, clamping seat; 21, fixed table; 22, upper limit groove; 23, lower limit groove; 3, driving shaft; 31, upper limit pin; 32, lower limit pin; 33, clamping table; 34, first pneumatic gripper; 35, second pneumatic gripper; 41, loading bracket; 42, X-axis loading linear module; 43, loading seat; 44, loading tray; 51, X-axis transmission linear module; 52, Y-axis transmission linear module; 53, transmission seat; 54, first slide rail; 55, second slide rail; 56, first slider; 57, second slider; 58, first vacuum suction nozzle; 59, second vacuum suction nozzle; 61, transmission motor; 62, lever member; 63, first connecting rod; 64, second connecting rod; 71, column; 72, stray light detector; 73, lead screw; 74, nut; 8, positioning seat; 81, positioning table; 82, rotating platform; 83, positioning groove; 84, third pneumatic gripper; 85, first positioning arm; 86, second positioning arm; 87, positioning cylinder; 88, positioning motor; 91, lifting rod; 92, lifting seat; 93, clamping motor; 94, clamping cylinder; 95, limiting column. Detailed Embodiments

[0024] The present utility model will be further described in conjunction with the following embodiments.

[0025] As Figures 1 to 4 can be seen, a lens stray light detector described in this embodiment includes a frame 1; the frame 1 is provided with a lens loading mechanism, a lens transmission mechanism, a lens clamping mechanism, and a stray light detection mechanism; the lens transmission mechanism is arranged between the lens loading mechanism and the lens clamping mechanism;

[0026] The lens clamping mechanism includes a clamping seat 2 arranged on the frame 1, a fixed table 21 arranged on the clamping seat 2, and a driving shaft 3 that is lifted and movably arranged on the fixed table 21; the driving shaft 3 is rotatably arranged on the fixed table 21; the driving shaft 3 is provided with a clamping table 33 at the top of the fixed table 21; the two ends of the clamping table 33 are symmetrically provided with a first pneumatic gripper 34 and a second pneumatic gripper 35; the driving shaft 3 is provided with an upper limit pin 31 at the bottom of the clamping table 33; the top of the fixed table 21 is provided with an upper limit groove 22 that cooperates with the upper limit pin 31; among them, the lower limit groove 23 can be V-shaped to facilitate the upper limit pin 31 to be inserted into the lower limit groove 23.

[0027] Specifically, when the lens stray light detector described in this embodiment is in use, first, the lens loading mechanism loads the lens, and then the lens transmission mechanism transports the lens from the lens loading mechanism to the top of the first pneumatic gripper 34 or the second pneumatic gripper 35 of the lens clamping mechanism. After the first pneumatic gripper 34 or the second pneumatic gripper 35 clamps the lens, by raising the driving shaft 3, after the upper limit pin 31 is disengaged from the lower limit groove 23, then by rotating the driving shaft 3, the lens is rotated to directly above the positioning groove 83, and then by lowering the driving shaft 3, the upper limit pin 31 is reinserted into the lower limit groove 23, so that the lens clamping mechanism can stably place the lens on the positioning groove 83, and then the stray light detector 72 is used to detect the stray light of the lens.

[0028] In this embodiment, by setting the lens loading mechanism, the lens transmission mechanism, the lens clamping mechanism, and the stray light detection mechanism, automatic stray light detection of the lens can be realized, and through the cooperation of the upper limit pin 31 and the upper limit groove 22, the lens clamping mechanism can stably place the lens on the positioning groove 83, thereby ensuring the accuracy of the detection.

[0029] A lens stray light detector described in this embodiment, the lens loading mechanism includes a loading bracket 41 that is lifted and movably arranged on the frame 1, an X-axis loading linear module 42 arranged on the frame 1 along the X-axis direction, a loading seat 43 arranged at the output end of the X-axis loading linear module 42, and a loading tray 44 arranged on the loading seat 43; the X-axis loading linear module 42 is used to drive the loading seat 43 to move between the loading bracket 41 and the lens transmission mechanism; the loading bracket 41 is provided with a plurality of loading trays 44 along the height direction.

[0030] Specifically, in the lens stray light detector of this embodiment, a plurality of lenses are placed on the loading tray 44. By setting the X-axis loading linear module 42, the loading seat 43 can be moved to the position of the loading bracket 41, facilitating the loading and unloading operations of the loading tray 44.

[0031] In a lens stray light detector of this embodiment, the lens transmission mechanism includes an X-axis transmission linear module 51 arranged along the X-axis direction on the frame 1, a Y-axis transmission linear module 52 arranged at the output end of the X-axis transmission linear module 51 along the Y-axis direction, and a transmission seat 53 arranged at the output end of the Y-axis transmission linear module 52. Specifically, through the above settings, it is convenient to drive the transmission seat 53 to move between the loading seat 43 and the clamping seat 2.

[0032] In a lens stray light detector of this embodiment, the transmission seat 53 is provided with a first slide rail 54 and a second slide rail 55 along the height direction; a first slider 56 and a second slider 57 are respectively slidably arranged on the first slide rail 54 and the second slide rail 55; the first slider 56 and the second slider 57 are respectively connected with a first vacuum suction nozzle 58 and a second vacuum suction nozzle 59; the transmission seat 53 is provided with a transmission motor 61, a lever member 62, a first connecting rod 63 and a second connecting rod 64; the output end of the transmission motor 61 is connected to the middle of the lever member 62; one end of the first connecting rod 63 is hinged to one end of the lever member 62; the other end of the first connecting rod 63 is hinged to the first slider 56; one end of the second connecting rod 64 is hinged to the other end of the lever member 62; the other end of the second connecting rod 64 is hinged to the second slider 57.

[0033] Specifically, through the above settings in this embodiment, when the transmission motor 61 is working, the first vacuum suction nozzle 58 and the second vacuum suction nozzle 59 can be alternately lifted and lowered under the action of the lever member 62, the first connecting rod 63 and the second connecting rod 64; and in addition, a blanking tray can be arranged on the frame 1. Thus, during the alternating lifting and lowering process of the first vacuum suction nozzle 58 and the second vacuum suction nozzle 59, the lenses can be picked up from the loading tray 44 and also placed in the blanking tray, improving the working efficiency.

[0034] A stray light detector for a lens according to this embodiment, the stray light detection mechanism includes a column 71 provided on a bracket, a stray light detector 72 provided on the column 71, and a positioning assembly provided at the bottom of the stray light detector 72. A stray light detector for a lens according to this embodiment, the positioning assembly includes a positioning seat 8 provided on the frame 1, a positioning table 81 that is vertically movably provided on the positioning seat 8, a rotating platform 82 that is rotatably provided on the positioning table 81, and a third pneumatic gripper 84 provided on the positioning table 81; a positioning groove 83 is provided at the top of the rotating platform 82; the output end of the third pneumatic gripper 84 is provided with a first positioning arm 85 and a second positioning arm 86; the first positioning arm 85 and the second positioning arm 86 are movably provided at the top of the positioning groove 83; the positioning seat 8 is provided with a positioning cylinder 87 for driving the vertical movement of the positioning table 81; the positioning table 81 is provided with a positioning motor 88 for driving the rotation of the rotating platform 82.

[0035] Specifically, for the stray light detector for a lens according to this embodiment, when the first pneumatic gripper 34 or the second pneumatic gripper 35 places the lens in the positioning groove 83, the third pneumatic gripper 84 is activated, so that the first positioning arm 85 and the second positioning arm 86 clamp the lens in the positioning groove 83, ensuring the accuracy of the detection by the stray light detector 72.

[0036] During the measurement process, it is necessary to adjust the angle of the lens. First, the third pneumatic gripper 84 is activated, so that the first positioning arm 85 and the second positioning arm 86 release the lens. Then, under the action of the positioning motor 88 and the rotating platform 82, after the lens rotates a certain angle, the lens is clamped again by the first positioning arm 85 and the second positioning arm 86.

[0037] A stray light detector for a lens according to this embodiment, the bracket is rotatably provided with a lead screw 73 in the height direction; a nut 74 is sleeved on the lead screw 73; the nut 74 is connected to the stray light detector 72; the stray light detector 72 is slidably provided on the column 71. Specifically, through the above settings, by driving the rotation of the lead screw 73, the stray light detector 72 can be lifted or lowered along the column 71, so as to adjust the height of the stray light detector 72.

[0038] A stray light detector for a lens according to this embodiment, the clamping seat 2 is connected to a base 96 through a lifting rod 91; a lifting seat 92 is slidably provided on the lifting rod 91; the lifting seat 92 is provided with a clamping motor 93; the output end of the clamping motor 93 is connected to the drive shaft 3; the base 96 is provided with a clamping cylinder 94; the output end of the clamping cylinder 94 is connected to the lifting seat 92. Specifically, through the above settings, it is convenient for the drive shaft 3 to drive the clamping table 33 to lift and rotate.

[0039] A lens stray light detector according to this embodiment, a limiting post 95 is provided on the top of the first pneumatic gripper 34 or the second pneumatic gripper 35 of the frame 1. Specifically, through the above setting, when the first vacuum suction nozzle 58 or the second vacuum suction nozzle 59 moves to the top of the limiting post 95, the lens can be first placed on the limiting post 95 to prevent the lens from falling.

[0040] A lens stray light detector according to this embodiment, a lower limit pin 32 is provided at the bottom of the clamping table 33 of the drive shaft 3; a lower limit groove 23 that cooperates with the lower limit pin 32 is provided at the bottom of the fixed table 21. The lower limit groove 23 can be V-shaped to facilitate the lower limit pin 32 to be inserted into the lower limit groove 23. Specifically, through the above setting, the rising position of the drive shaft 3 can be limited.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A lens stray light detector, characterized in that: Including a frame; the frame is provided with a lens loading mechanism, a lens transmission mechanism, a lens clamping mechanism and a stray light detection mechanism; the lens transmission mechanism is arranged between the lens loading mechanism and the lens clamping mechanism; The lens clamping mechanism includes a clamping seat arranged on the frame, a fixed table arranged on the clamping seat, and a driving shaft that is vertically movably arranged on the fixed table; the driving shaft is rotatably arranged on the fixed table; the driving shaft is provided with a clamping table at the top of the fixed table; the two ends of the clamping table are symmetrically provided with a first pneumatic gripper and a second pneumatic gripper; the driving shaft is provided with an upper limit pin at the bottom of the clamping table; the top of the fixed table is provided with an upper limit groove that cooperates with the upper limit pin.

2. The stray light detector for a lens according to claim 1, characterized in that: The lens loading mechanism includes a loading bracket that is vertically movably arranged on the frame, an X-axis loading linear module arranged on the frame along the X-axis direction, a loading seat arranged at the output end of the X-axis loading linear module, and a loading tray arranged on the loading seat; the X-axis loading linear module is used to drive the loading seat to move between the loading bracket and the lens transmission mechanism; the loading bracket is provided with a plurality of loading trays along the height direction.

3. The stray light detector for a lens according to claim 1, characterized in that: The lens transmission mechanism includes an X-axis transmission linear module arranged on the frame along the X-axis direction, a Y-axis transmission linear module arranged at the output end of the X-axis transmission linear module along the Y-axis direction, and a transmission seat arranged at the output end of the Y-axis transmission linear module.

4. A lens stray light detector according to claim 3, characterized in that: The transmission seat is provided with a first slide rail and a second slide rail along the height direction; a first slider and a second slider are respectively slidably arranged on the first slide rail and the second slide rail; the first slider and the second slider are respectively connected with a first vacuum suction nozzle and a second vacuum suction nozzle; the transmission seat is provided with a transmission motor, a lever member, a first connecting rod and a second connecting rod; the output end of the transmission motor is connected to the middle of the lever member; one end of the first connecting rod is hinged to one end of the lever member; the other end of the first connecting rod is hinged to the first slider; one end of the second connecting rod is hinged to the other end of the lever member; the other end of the second connecting rod is hinged to the second slider.

5. The stray light detector for a lens according to claim 1, characterized in that: The stray light detection mechanism includes a column arranged on the bracket, a stray light detector arranged on the column, and a positioning component arranged at the bottom of the stray light detector.

6. The stray light detector for a lens according to claim 5, wherein: The positioning component includes a positioning seat arranged on the frame, a positioning table that is vertically movably arranged on the positioning seat, a rotating platform that is rotatably arranged on the positioning table, and a third pneumatic gripper arranged on the positioning table; the top of the rotating platform is provided with a positioning groove; the output end of the third pneumatic gripper is provided with a first positioning arm and a second positioning arm; the first positioning arm and the second positioning arm are movably arranged on the top of the positioning groove; The positioning seat is provided with a positioning cylinder for driving the positioning table to lift; the positioning table is provided with a positioning motor for driving the rotating platform to rotate.

7. A lens stray light detector according to claim 5, characterized in that: The bracket is rotatably provided with a lead screw along the height direction; a nut is sleeved on the lead screw; the nut is connected with the stray light detector; the stray light detector is slidably arranged on the column.

8. The stray light detector for a lens according to claim 1, characterized in that: The clamping seat is connected with a base through a lifting rod; a lifting seat is slidably arranged on the lifting rod; the lifting seat is provided with a clamping motor; the output end of the clamping motor is connected to the driving shaft; the base is provided with a clamping cylinder; the output end of the clamping cylinder is connected to the lifting seat.

9. The stray light detector for a lens according to claim 1, characterized in that: The frame is provided with a limit post at the top of the first pneumatic gripper or the second pneumatic gripper.

10. The lens stray light detector according to claim 1, wherein: The drive shaft is provided with a lower limit pin at the bottom of the clamping table; the bottom of the fixed table is provided with a lower limit groove that cooperates with the lower limit pin.

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