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CN-224203484-U - Piezoelectric optical adjusting frame

CN224203484UCN 224203484 UCN224203484 UCN 224203484UCN-224203484-U

Abstract

The utility model relates to the technical field of precision optical devices, and discloses a piezoelectric optical adjusting frame which comprises a fixed frame, a movable frame, an elastic connecting component and 2 piezoelectric drivers. A base is arranged in the shell of the piezoelectric driver. The base is provided with piezoelectric ceramics. The piezoelectric ceramic is provided with a first gasket. The first ball is propped against the upper part of the first gasket. A flexible hinge is arranged on the top of the first ball. A push rod is arranged above the flexible hinge. The second ball is propped above the push rod. The second ball is abutted with the movable frame. The shell penetrates through the fixing frame and is fixed on the fixing frame. The second ball pushes the movable frame to be close to or far away from the fixed frame under the action of the piezoelectric ceramic. The utility model adopts 2 piezoelectric drivers to push the movable frame to realize high-angle and high-precision deflection of two dimensions theta X and theta Y, and has simple and compact integral structure and reliable operation. The piezoelectric driver adopts piezoelectric ceramic linear driving, and has the characteristics of large output, large load, high response speed and high resolution.

Inventors

  • XU GUOFEI
  • CHEN FENG
  • YANG MINGYUAN
  • YU LEI
  • YU CHAO
  • SU HONGFEI

Assignees

  • 哈尔滨芯明天科技有限公司

Dates

Publication Date
20260505
Application Date
20250520

Claims (10)

  1. 1. The piezoelectric optical adjusting frame is characterized by comprising a fixed frame (1), a movable frame (2), an elastic connecting component (3) and 2 piezoelectric drivers (4) for pushing the movable frame (2) to realize X-axis deflection and Y-axis deflection; The piezoelectric actuator (4) comprises a shell (41), a base (42) is arranged in the shell (41), piezoelectric ceramics (43) is arranged on the base (42), a first gasket (44) is arranged on one side, away from the base (42), of the piezoelectric ceramics (43), a first ball (45) is arranged on the top of the first gasket (44), a flexible hinge (46) is arranged on the top of the first ball (45), the flexible hinge (46) is connected with the inner wall of the shell (41), a push rod (47) is arranged on the top of the flexible hinge (46), a second ball (48) is arranged on the top of the push rod (47), the second ball (48) is in butt joint with the movable frame (2), the shell (41) penetrates through the fixed frame (1) and is fixed on the fixed frame (1), and the second ball (48) pushes the movable frame (2) to be close to or far away from the fixed frame (1) under the action of the piezoelectric ceramics (43).
  2. 2. The piezooptical adjustment frame according to claim 1, characterized in that a third ball (5) for supporting is abutted between the fixed frame (1) and the movable frame (2), and the third ball (5) is arranged between 2 piezoelectric actuators (4) and is arranged at the deflection axes of the X axis and the Y axis.
  3. 3. The piezoelectricity optical adjusting frame according to claim 1, wherein the elastic connecting assembly (3) comprises a tension spring (31), a first pull rod (32) and a second pull rod (33), two ends of the tension spring (31) are respectively connected with the first pull rod (32) and the second pull rod (33), the fixed frame (1) and the movable frame (2) are respectively provided with a first mounting hole and a second mounting hole (27), and the first pull rod (32) and the second pull rod (33) are respectively mounted in the first mounting hole and the second mounting hole (27).
  4. 4. The piezooptical adjustment frame according to claim 1, characterized in that the middle part of the movable frame (2) is provided with a circular or C-shaped light-transmitting hole (21).
  5. 5. The piezoelectricity optical adjustment frame according to claim 1, characterized in that one end of the outer shell (41) far away from the second ball (48) is inserted with a sheath (49), a first jack (411) and a first inserting piece (412) are arranged on the side wall of the outer shell (41) at intervals, a second jack (491) and a second inserting piece (492) are arranged on the side wall of the sheath (49) at intervals, the first jack (411) is inserted with the second inserting piece (492) and the first inserting piece (412) is inserted with the second jack (491), a locking nut (410) is arranged on the outer side of the outer shell (49), and the locking nut (410) is connected with the outer shell (41) through threads.
  6. 6. The piezooptical tuning rig according to claim 5, wherein the sheath (49) is provided with a cavity (493), the base (42) is provided with a through hole (421) corresponding to the cavity (493), and the cavity (493) and the through hole (421) are used for wiring.
  7. 7. The piezoelectricity optical adjustment frame according to claim 1, wherein the flexible hinge (46) comprises a circular flexible arm (461) and an annular connecting part (462) connected with the peripheral edge of the circular flexible arm (461), the annular connecting part (462) is connected with the inner wall of the housing (41) through threads, a ball socket (463) is arranged at the center of one side, close to the first ball (45), of the circular flexible arm (461), a connecting column (464) is arranged at the center of one side, far away from the first ball (45), of the circular flexible arm (461), and the connecting column (464) is connected with the push rod (47).
  8. 8. The piezooptical adjustment stand according to claim 7, characterized in that the push rod (47) comprises a connecting ring (471) and a pushing end (472), the connecting ring (471) being sleeved outside the connecting post (464), the pushing end (472) being provided with a spherical recess (4721) for contact with the second ball (48).
  9. 9. Piezo-optical adjusting frame according to claim 1, characterized in that the moving frame (2) is provided with a receiving groove (24), 2 positioning pins (25) are symmetrically and alternately arranged in the receiving groove (24), the second balls (48) are abutted with the positioning pins (25), and the positioning pins (25) are used for positioning and guiding.
  10. 10. The piezooptical adjustment frame according to claim 1, characterized in that the mobile frame (2) is provided with a receiving groove (24), a second spacer (26) is provided in the receiving groove (24), and the second ball (48) abuts against the second spacer (26).

Description

Piezoelectric optical adjusting frame Technical Field The utility model belongs to the technical field of precision optical devices, and particularly relates to a piezoelectric optical adjusting frame. Background In recent years, the commercial piezoelectric ceramic chip has the remarkable characteristics of miniaturization, high reliability and stability and the like, and is very suitable for being applied to various precise adjustment and precise instruments due to the progress of the piezoelectric ceramic manufacturing process and technology. Along with the development of the photoelectric industry, the piezoelectric ceramic is applied to an optical adjusting frame, and the optical adjusting frame is mainly used for clamping and adjusting optical components and adjusting the direction of a light beam, so that the light beam is rapidly and accurately positioned. In order to enable the optical adjusting frame to realize deflection of an X axis and a Y axis, the existing optical adjusting frame often has the problems of complex structure, poor operation reliability, low repeated positioning accuracy, small load and low resolution. Based on the above, the piezoelectric optical adjusting frame has the advantages of compact structure, reliable operation, high precision, large load and high resolution. Disclosure of utility model The utility model aims to provide a piezoelectric optical adjusting frame, which aims to solve the problems of complex structure, poor reliability, low repeated positioning precision, small load and low resolution of an optical adjusting frame in the prior art. The utility model is realized in that the piezoelectric optical adjusting frame comprises a fixed frame, a movable frame, an elastic connecting component and 2 piezoelectric drivers for pushing the movable frame to realize X-axis deflection and Y-axis deflection; The piezoelectric driver comprises a shell, a base is arranged in the shell, piezoelectric ceramic is arranged on the base, a first gasket is arranged on one side, away from the base, of the piezoelectric ceramic, a first ball is arranged on the top of the first gasket, a flexible hinge is arranged on the top of the first ball, the flexible hinge is connected with the inner wall of the shell, a push rod is arranged on the top of the flexible hinge, a second ball is arranged on the top of the push rod, the second ball is abutted to the movable frame, the shell penetrates through the fixed frame and is fixed on the fixed frame, and the second ball pushes the movable frame to be close to or away from the fixed frame under the action of the piezoelectric ceramic. Further, a third ball used for supporting is abutted between the fixed frame and the movable frame, and the third ball is arranged between 2 piezoelectric drivers and at the deflection axle centers of the X axis and the Y axis. Further, the elastic connecting assembly comprises a tension spring, a first pull rod and a second pull rod, two ends of the tension spring are respectively connected with the first pull rod and the second pull rod, the fixing frame and the moving frame are respectively provided with a first mounting hole and a second mounting hole, and the first pull rod and the second pull rod are respectively mounted in the first mounting hole and the second mounting hole. Further, a round or C-shaped light hole is formed in the middle of the movable frame. Furthermore, a sheath is inserted into one end of the shell, which is far away from the second ball, a first jack and a first inserting piece are arranged on the side wall of the shell at intervals, a second jack and a second inserting piece are arranged on the side wall of the sheath at intervals, the first jack is inserted into the second inserting piece, the first inserting piece is inserted into the second jack, a locking nut is arranged on the outer side of the sheath, and the locking nut is connected with the shell through threads. Furthermore, the sheath is provided with a cavity, the base is arranged on the through hole corresponding to the cavity, and the cavity and the through hole are used for wiring. Further, the flexible hinge comprises a round flexible arm and an annular connecting part connected with the peripheral edge of the round flexible arm, the annular connecting part is connected with the inner wall of the shell through threads, a ball socket is arranged in the center of one side, close to the first ball, of the round flexible arm, a connecting column is arranged in the center of one side, far away from the first ball, of the round flexible arm, and the connecting column is connected with the push rod. Further, the push rod comprises a connecting ring and a pushing end, the connecting ring is sleeved on the outer side of the connecting column, and the pushing end is provided with a spherical groove for contacting with the second ball. Further, the movable frame is provided with an accommodating groove, 2 positioning pins are symme