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CN-121994459-A - Eccentric detection device of endoscope lens

CN121994459ACN 121994459 ACN121994459 ACN 121994459ACN-121994459-A

Abstract

The invention discloses an eccentric detection device for an endoscope lens, which comprises a base plate, wherein the top of the base plate is fixedly connected with a support column, the top of the support column is fixedly connected with a glass plate, the top of the glass plate is provided with a clamping plate fixing device, the top of the base plate is provided with a shading device, the top of the glass plate is provided with a detection head, a matte clamp I is movably connected to the outer circumferential surface of a bidirectional screw I, a bidirectional screw II is rotatably connected to the top of the glass plate, the two bidirectional screws I and II are in transmission connection through a belt pulley group, and the matte clamp I and the matte clamp II are movably connected to the outer circumferential surface of the bidirectional screw II.

Inventors

  • JI XIAOJUN
  • LIU LI
  • LIU RONGWEI
  • GONG PENGFEI

Assignees

  • 江西微视光学科技有限公司

Dates

Publication Date
20260508
Application Date
20260323

Claims (9)

  1. 1. The utility model provides an eccentric detection device of endoscope lens, its characterized in that includes bed plate (1), the top fixedly connected with pillar (2) of bed plate (1), the top fixedly connected with glass board (3) of pillar (2), the top of glass board (3) is provided with splint fixing device (4), the top of bed plate (1) is provided with shade (5), the top of glass board (3) is provided with detection head (6), the outer wall of detection head (6) is provided with recorder (7); The clamping plate fixing device (4) comprises a protection cover (401), a first bidirectional screw rod (402), a second bidirectional screw rod (403), a second matte screw rod (404) and a second matte screw rod (405), wherein the protection cover (401) is fixedly connected to the top of a glass plate (3), the first bidirectional screw rod (402) is rotationally connected to the inner wall of the protection cover (401), the first matte screw rod (403) is movably connected to the outer circumferential surface of the first bidirectional screw rod (402), the second bidirectional screw rod (404) is rotationally connected to the top of the glass plate (3), the first bidirectional screw rod (402) is in transmission connection with the second bidirectional screw rod (404) through a belt pulley group, the second matte screw rod (405) is movably connected to the outer circumferential surface of the second bidirectional screw rod (404), and the first matte screw rod (403) is rotationally connected with the second matte screw rod (405) through a torsion spring.
  2. 2. The device for detecting the eccentricity of an endoscope lens according to claim 1, wherein the clamping plate fixing device (4) further comprises a rotary groove rod (406), a three-way screw rod (407), a fixing seat (408) and a transverse transmission block (409), the rotary groove rod (406) is fixedly connected to the outer wall of the one-way screw rod (402), the fixing seat (408) is fixedly connected to the top of the base plate (1), the three-way screw rod (407) is rotatably connected to the inner wall of the fixing seat (408), and the transverse transmission block (409) is movably connected to the outer circumferential surface of the three-way screw rod (407).
  3. 3. The eccentric detection device of an endoscope lens according to claim 2, wherein the clamping plate fixing device (4) further comprises a maintenance plate (410), a building frame groove (411) and a scale detection ruler (412), the maintenance plate (410) is fixedly connected to the bottom of the transverse transmission block (409), the building frame groove (411) is formed in the top of the base plate (1), and the scale detection ruler (412) is formed in the inner wall of the building frame groove (411).
  4. 4. An eccentric detection device of an endoscope lens according to claim 3, wherein the shading device (5) further comprises a horizontal square frame (501), a horizontal top sheet (502), a spiral rod (503) and a vertical moving block (504), the horizontal square frame (501) is fixedly connected to the top of the base plate (1), the horizontal top sheet (502) is fixedly connected to the outer wall of the horizontal square frame (501), the spiral rod (503) is rotatably connected to the inner wall of the horizontal top sheet (502), and the vertical moving block (504) is movably connected to the outer circumferential surface of the spiral rod (503).
  5. 5. The device for detecting the eccentricity of an endoscope lens according to claim 4, wherein the shading device (5) further comprises a shading plate I (505), a limiting rod (506), a sliding limiting ring (507) and a moving box (508), the shading plate I (505) is fixedly connected to the outer wall of the vertical moving block (504), the limiting rod (506) is fixedly connected to the top of the base plate (1), the sliding limiting ring (507) is slidably connected to the outer wall of the limiting rod (506), the sliding limiting ring (507) is fixedly connected with the shading plate I (505), the moving box (508) is fixedly connected to the outer wall of the holding plate (410), and the moving box (508) is slidably connected with the base plate (1).
  6. 6. The device for detecting the eccentricity of an endoscope lens according to claim 5, wherein the light shielding device (5) further comprises a second light shielding plate (509), a sliding wheel (510), a sliding rod (511) and a rotating roller (512), the second light shielding plate (509) is slidably connected to the inner wall of the second light shielding plate (509), the sliding wheel (510) is rotatably connected to the inner wall of the second light shielding plate (509), the sliding rod (511) is rotatably connected to the outer wall of the second light shielding plate (508) through a torsion spring, the rotating roller (512) is fixedly connected to the inner wall of the sliding rod (511), the rotating roller (512) is in contact with the glass plate (3), and the second light shielding plate (509) is connected through a spring.
  7. 7. The device for detecting the eccentricity of an endoscope lens according to claim 6, wherein the recording device (7) comprises a top lug (701), a rotating rod (702) and a light absorbing rod (703), the top lug (701) is fixedly connected to the top of the base plate (1), the rotating rod (702) is rotatably connected to the inner wall of the top lug (701), and the light absorbing rod (703) is fixedly connected to the outer wall of the rotating rod (702).
  8. 8. The device for detecting the eccentricity of an endoscope lens according to claim 7, wherein the recording device (7) further comprises a vertical limiting tube groove (704), a gear transmission rod (705), a knob (706), a curved frame (707) and a transverse moving fixing frame (708), the vertical limiting tube groove (704) is fixedly connected to the top of the base plate (1), the gear transmission rod (705) is slidably connected to the inner wall of the vertical limiting tube groove (704), the knob (706) is rotatably connected to the inner wall of the vertical limiting tube groove (704), the knob (706) and the gear transmission rod (705) are in meshed transmission through a gear rack, the curved frame (707) is fixedly connected to the outer wall of the gear transmission rod (705), the transverse moving fixing frame (708) is slidably connected to the inner wall of the vertical limiting tube groove (708), and the transverse moving fixing frame (708) is fixedly connected to the curved frame (707).
  9. 9. The device for detecting the eccentricity of an endoscope lens according to claim 8, wherein the recording device (7) further comprises a vertical groove frame (709), a recorder (710), a telescopic rod piece (711) and a pulling rod (712), the vertical groove frame (709) is fixedly connected to the outer wall of the transverse moving fixed frame (708), the recorder (710) is rotatably connected to the bottom of the vertical groove frame (709), the telescopic rod piece (711) is fixedly connected to the outer wall of the curved frame (707), the detecting head (6) is fixedly connected to the outer wall of the telescopic rod piece (711), and the pulling rod (712) is fixedly connected to the outer wall of the telescopic rod piece (711).

Description

Eccentric detection device of endoscope lens Technical Field The invention belongs to the field of lens detection, and particularly relates to an eccentric detection device of an endoscope lens. Background Lens decentration detection is a key technology for evaluating deviation between the geometric center of a lens and an optical axis in optical manufacture, and directly affects imaging quality. The traditional method adopts mechanical surface beating or visual alignment, has low precision and is easy to damage the lens. Modern technology has been developed into an optical auto-collimation method based on laser reflection or transmission imaging, and by combining a high-precision rotating platform and an image processing algorithm, non-contact and high-precision automatic eccentric measurement is realized. The patent with the publication number of CN222069604U provides a lens decentration detection device, which belongs to the technical field of optical device detection. The lens decentration detection device comprises a frame body, a transmission mechanism and a bullseye detection assembly, wherein the frame body comprises a first supporting plate, a first placing table and a second placing table, the first placing table and the second placing table are fixedly arranged on the first supporting plate, a visible light source is arranged on the first placing table, the second placing table is used for placing a lens, the visible light emitted by the visible light source can be emitted to the center point of the lens, the transmission mechanism is arranged on the frame body, the bullseye detection assembly is arranged on one side, away from the first placing table, of the second placing table, the bullseye detection assembly is arranged at the output end of the transmission mechanism so as to move towards or away from the second placing table, and light spots of the lens can be fed back to the bullseye detection assembly. The lens eccentric detection device has high detection precision and can be suitable for lens detection of different focal lengths, but still has the advantages that detection data are difficult to visually read out during detection, and in the detection process, the lens is clamped by a traditional clamp, so that the lens is easy to deviate to cause different detection data for a plurality of times, and the eccentric detection device of the endoscope lens is provided to solve the problem. Disclosure of Invention The invention aims to provide an eccentric detection device for an endoscope lens, which aims to solve the problems that the lens deviates in the detection process to cause different data for a plurality of times and the obtained data is tedious and has slower reading. In order to achieve the above object, the invention provides an eccentric detection device of an endoscope lens, which comprises a base plate, wherein a support column is fixedly connected to the top of the base plate, a glass plate is fixedly connected to the top of the support column, a clamping plate fixing device is arranged at the top of the glass plate, a shading device is arranged at the top of the base plate, a detection head is arranged at the top of the glass plate, and a recording device is arranged on the outer wall of the detection head. The clamping plate fixing device comprises a protective cover, a first bidirectional screw rod, a second matte clamp, a second bidirectional screw rod and a second matte clamp, wherein the protective cover is fixedly connected to the top of a glass plate, one bidirectional screw rod is rotatably connected to the inner wall of the protective cover, one matte clamp is movably connected to the outer circumferential surface of the first bidirectional screw rod, the second bidirectional screw rod is rotatably connected to the top of the glass plate, the first bidirectional screw rod is in transmission connection with the second bidirectional screw rod through a belt pulley group, the second matte clamp is movably connected to the outer circumferential surface of the second bidirectional screw rod, and the first matte clamp is rotatably connected with the second matte clamp through a torsion spring. In one or more embodiments of the present invention, the clamping plate fixing device further includes a rotary groove rod, a bidirectional screw rod III, a fixing seat and a transverse transmission block, wherein the rotary groove rod is fixedly connected to the outer wall of the bidirectional screw rod I, the fixing seat is fixedly connected to the top of the base plate, the bidirectional screw rod III is rotatably connected to the inner wall of the fixing seat, and the transverse transmission block is movably connected to the outer circumferential surface of the bidirectional screw rod III. In one or more embodiments of the present invention, the clamping plate fixing device further includes a retaining plate, a building frame groove, and a scale detection ruler, wherein the reta