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CN-115702297-B - Linear regulator, positioning device, positioning assembly and method for repairing linear regulator

CN115702297BCN 115702297 BCN115702297 BCN 115702297BCN-115702297-B

Abstract

The invention provides a linear regulator (1) having a spindle-spindle nut mechanism (2), a first regulating part (10) having a first base body (11) and a first stop device (30), a second regulating part (20) having a second base body (21) and a second stop device (40), wherein the first regulating part (10) and the second regulating part (20) can be moved relative to each other along a spindle longitudinal axis (L3) by means of the spindle-spindle nut mechanism (2), wherein the first stop device (30) and the second stop device (40) enter a stop state when the linear regulator (1) performs a movement in movement or a movement out movement and the first regulating part (10) and the second regulating part (20) are in a predetermined stop movement position relative to each other. The invention also provides a positioning device, a positioning assembly and a method for repairing a linear regulator (1).

Inventors

  • Simon Hamar

Assignees

  • 物理仪器(PI)两合有限公司

Dates

Publication Date
20260512
Application Date
20210420
Priority Date
20200420

Claims (13)

  1. 1. A linear regulator (1) having a first end (E1) and a second end (E2), the linear regulator (1) comprising: -a spindle-spindle nut mechanism (2) having a spindle (3) extending along a spindle longitudinal axis (L3), and a spindle nut (5), wherein the spindle-spindle nut mechanism (2) adjusts a first adjustment portion (10) and a second adjustment portion (20) into different adjustment states as a result of rotation of the spindle (3) and the spindle nut (5) relative to each other about the spindle longitudinal axis (L3), wherein the first end (E1) and the second end (E2) are arranged opposite to each other relative to the spindle longitudinal axis (L3); wherein the first adjusting part (10) has a first base body (11) at a first end (E1) of the linear regulator (1) and has a first stop device (30) extending from the first base body (11) in the direction of the spindle longitudinal axis (L3) toward the second end (E2), Wherein the second adjusting part (20) has a second base body (21) at a second end (E2) of the linear regulator (1) and has a second stop device (40) extending from the second base body (21) in the direction of the spindle longitudinal axis (L3) towards the first end (E1), Wherein the first and second stop means (30, 40) enter a stop state in which the first and second stop means (30, 40) abut each other with surfaces (35 a,45a,36a,45 b) facing each other when the linear regulator (1) performs a stop regulating movement with a decrease in regulator Length (LV) upon a moving-in movement or with an increase in regulator Length (LV) upon a moving-out movement and the first and second regulating portions (10, 20) are in predetermined respective stop movement positions relative to each other, Wherein the first locking device (30) is mechanically fixed to the first base body (11) or the second locking device (40) is mechanically fixed to the second base body (21) by means of a fixing device (50) in a locking preparation state in which the locking state takes place in the shifting-in movement or the shifting-out movement, and wherein after the mechanical fixing of the fixing device (50) is released, the linear regulator (1) is in a locking release state in which the regulating parts (10, 20) can be moved relative to each other in the shifting-in movement and the shifting-out movement by means of the spindle-spindle nut mechanism from a locking movement position.
  2. 2. Linear regulator (1) according to claim 1, wherein in the stop ready state the first stop means (30) is arranged on the first base body (11) in a mechanically fixed or fastened manner and in a fixed position and orientation manner by means of the fixing means (50), and wherein for achieving the stop release state the fixing means (50) are released and the first stop means (30) are mechanically released for movement radially outwards relative to the spindle axis away from the first base body (11) into the stop release state.
  3. 3. Linear regulator (1) according to claim 1, wherein the first stop device (30) has a first spacer (34) and at least one mobile stop portion (35, 36), wherein the first spacer (34) protrudes away from the first base body (11) towards the second end (E2) in the direction of the spindle longitudinal axis (L3), and the first spacer (34) has a proximal end section (31), a distal end section (32) and a connection (33) connecting the proximal and distal end sections (31, 32), and wherein the first stop device (30) is implemented with one or both of the following alternatives: (m) a proximal mobile stop portion (35) is formed on the proximal section (31), the proximal mobile stop portion (35) extending radially from the first stop means (30) with respect to the spindle longitudinal axis (L3); (n) a distal mobile stop (36) is formed on the distal section (32), the distal mobile stop (36) extending radially from the first stop (30) with respect to the spindle longitudinal axis (L3).
  4. 4. A linear regulator (1) according to claim 3, wherein the second stop means (40) has a second spacer (44) and a complementary stop portion (45), wherein the second spacer (44) projects away from the second base body (21) in the direction of the spindle longitudinal axis (L3) towards the first end (E1), and the second spacer (44) has a connecting section (41), a stop section (42) and a connecting piece (43) connecting the connecting section (41) and the stop section (42), the connecting section (41) being connected with the second base body (21) in a rotationally fixed manner.
  5. 5. A linear regulator (1) according to claim 3, wherein the first stop means (30) are formed in a clamp-like manner.
  6. 6. A linear regulator (1) according to claim 3, wherein the fixing means (50) are constituted on the proximal section (31).
  7. 7. Linear regulator (1) according to claim 5, wherein the second stop device (40) has a second spacer (44) and a complementary stop portion (45), wherein the second spacer (44) protrudes away from the second base body (21) in the direction of the spindle longitudinal axis (L3) towards the first end (E1), and the second spacer (44) has a connecting section (41), a stop section (42) and a connecting piece (43) connecting the connecting section (41) and the stop section (42), the connecting section (41) being connected with the second base body (21) in a rotationally fixed manner.
  8. 8. A positioning device having a linear regulator (1) according to any one of claims 1 to 7.
  9. 9. A positioning assembly having at least two linear adjusters (1) according to claim 1, wherein the at least two linear adjusters (1) are arranged such that they extend along their main axis longitudinal axis (L3) from each other, wherein on one side of the positioning assembly the at least two linear adjusters (1) are each coupled to an application part and on a second side of the positioning assembly the at least two linear adjusters (1) are coupled to a further application part or against a reference surface, wherein the second side is opposite to the first side of the positioning assembly along the main axis longitudinal axis (L3).
  10. 10. The positioning assembly according to claim 9, having six linear adjusters (1) according to claim 1.
  11. 11. Method of arranging at least two linear regulators (1) according to claim 1 in a positioning assembly, wherein the at least two linear regulators (1) are arranged such that they extend along their main axis longitudinal axis (L3) from each other, wherein on one side of the positioning assembly the at least two linear regulators (1) are coupled to an application part and on a second side of the positioning assembly the at least two linear regulators (1) are coupled to a further application part or against a reference surface, wherein the second side is opposite to the first side of the positioning assembly along the main axis longitudinal axis (L3).
  12. 12. The method of claim 11, wherein the reference surface is a surface of a table or laboratory device.
  13. 13. Method for repairing a linear regulator according to claim 1, wherein a first stop device (30) is fixed to a first base body (11) or a second stop device (40) is fixed to a second base body (21) by means of a fixing device (50) in a stop ready state in which the stop state occurs upon an in-movement or an out-movement, wherein the method has the following steps: -releasing the securing means (50) and moving the first stopping means (30) relative to the first base body (11) or the second stopping means (40) relative to the second base body (21) with a moving member opposite to the stopping adjustment movement, so that the linear regulator (1) is in a stopping release state; the adjusting parts (10, 20) are moved from the stop-movement position relative to each other by means of a spindle-spindle nut mechanism (2) in a displacement-in movement and a displacement-out movement.

Description

Linear regulator, positioning device, positioning assembly and method for repairing linear regulator Technical Field The present invention relates to a linear regulator, a positioning device, a positioning assembly and a method for repairing a linear regulator. Background A drive for a spindle drive with a locking device is known from DE 10 2004 007 550 A1. EP 1 1898 122a2 describes an adjusting device for a linear regulator. US2 497 424 discloses a stop device for a linear regulator. DE 10 001 939 A1 describes an adjustment device for positioning a lens in a projector. The adjusting device has a lens support frame and a lens housing frame for housing a lens. The lens receiving frame is adjustable within limits relative to the lens support frame in mutually opposite linear adjustment directions. The blocking nut is rotatably guided here on the one hand by a fine thread on the drive spindle and on the other hand by a coarse thread in the frame opening of the lens receiving frame molding. The two stops of the clamp protrude into the thread of the molded part, onto which the blocking nut can be brought for stopping by a movement defined by the coarse thread. In this state, the clamp and thus the lens-receiving frame are moved in the respective adjustment directions by the finely threaded, driven, anti-lock nut until the lens-receiving frame enters the stop state with one of the end stops of the lens-supporting frame. The blocking of the blocking nut during the adjustment movement is prevented by the coarse thread. Disclosure of Invention It is an object of the present invention to provide a linear regulator that is advantageous in terms of reliable operation. According to the invention, a linear actuator is provided, having a spindle nut mechanism, a first actuating part having a first base body on a first end of the linear actuator and having a first stop device, and a second actuating part having a second base body on a second end of the linear actuator and having a second stop device, wherein the first end and the second end are arranged opposite one another, wherein the first actuating part and the second actuating part can be moved relative to one another along a spindle longitudinal axis by means of the spindle nut mechanism. The first and second adjustment portions are realized in such a way that, when the first and second stop means are in a stop-ready state and the linear regulator performs an in-movement of a reduced regulator length or an out-movement of an increased regulator length and the first and second adjustment portions are in a predetermined respective stop-movement position relative to each other, the first and second stop means enter a stop state in which the first and second stop means abut each other with surfaces facing each other. In an embodiment of the linear regulator according to the invention, the blocking state is defined in particular in that in the linear regulator the first blocking means and the second blocking means abut each other with surfaces facing each other. For this purpose, the linear regulator has a securing device which can have a latching readiness state and a latching release state, wherein the latching release state is set by releasing the mechanical securing of the securing device. In the ready state of the locking, the first locking device is mechanically fastened to the first base body or the second locking device is mechanically fastened to the second base body. In a corresponding embodiment of the linear regulator, the blocking state occurs during the shifting-in movement or during the shifting-out movement. According to one embodiment of the linear actuator according to the invention, the linear actuator is in a release-locking state after the mechanical fastening of the fastening device has been released, in which the adjustment parts can be moved from the locking displacement position with respect to one another in the displacement movement or alternatively in the displacement movement and the displacement movement with respect to one another by means of the spindle-spindle nut mechanism. In an embodiment of the linear actuator according to the invention, the linear actuator can be realized in such a way that, in the event of a stop state occurring in an insertion movement of reduced actuator length, a further insertion movement is mechanically prevented in a stop-ready state from a stop-movement position in this stop-ready state, and the further insertion movement is no longer possible and is locked mechanically, in particular by means of a stop part. Alternatively or additionally, in an embodiment of the linear actuator according to the invention, the linear actuator can be realized in such a way that, in the event of a stop state occurring in an out-of-motion of an increased actuator length, a further out-of-motion is mechanically prevented from the now-in stop-moved position in the stop-ready state, and the further in-motion is no longer possible an