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CN-224226579-U - Lifting fine tuning table

CN224226579UCN 224226579 UCN224226579 UCN 224226579UCN-224226579-U

Abstract

The utility model relates to the technical field of fine tuning tables and discloses a lifting fine tuning table which comprises a shell, wherein a bearing block which is in sliding fit with the shell up and down is arranged in the shell, three grooves are formed in the shell at equal intervals in a surrounding mode, guide rails are arranged in the grooves, fixed ends of the guide rails are fixedly connected with the shell, sliding ends of the guide rails are fixedly connected with the bearing block, a driving mechanism is arranged to enable the bearing block to reciprocate up and down, stable and controllable lifting of the bearing block in the vertical direction is achieved through precise mechanical structure design, the lifting fine tuning table has the characteristics of compact structure, high movement precision and good stability, the core structure is characterized in that the shell is in sliding fit with the bearing block, three grooves are formed in the shell at equal intervals along the circumferential direction, one ends of the guide rails are fixed to the shell, and the other ends of the guide rails are connected with the bearing block, so that a three-point guiding system is formed. The three-point support structure design enables the bearing block to effectively avoid deflection, skew or shaking in the lifting process, and improves the precision.

Inventors

  • LIU YIXIU

Assignees

  • 广东凯福电子科技有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (8)

  1. 1. A lifting fine tuning table comprises a shell (1) and is characterized in that a bearing block (2) which is in up-down sliding fit with the shell is arranged in the shell (1), three groove positions (3) are formed in the shell (1) in a surrounding mode at equal intervals, guide rails (4) are arranged in the groove positions (3), fixed ends of the guide rails (4) are fixedly connected with the shell (1), sliding ends of the guide rails (4) are fixedly connected with the bearing block (2), and a driving mechanism is arranged to enable the bearing block (2) to reciprocate up and down.
  2. 2. The lifting fine tuning table according to claim 1, wherein the driving mechanism comprises a driving motor (5), a belt pulley (6) connected with the bottom of the bearing block (2) is arranged at the bottom of the bearing block, a connecting belt (7) is wound between a rotating shaft of the driving motor (5) and the belt pulley (6), and the driving motor (5) drives the connecting belt (7) to move, so that the belt pulley (6) is driven to move.
  3. 3. The lifting fine tuning table according to claim 2, further comprising a rotating shaft member (9) connected with the belt pulley (6), wherein a shaft seat (10) in threaded connection with the rotating shaft member (9) is arranged, the shaft seat (10) is fixedly connected with the bearing block (2), and the rotating shaft member (9) is driven to rotate by the belt pulley (6) through forward and reverse rotation of the driving motor (5) so as to enable the bearing block (2) to realize up and down reciprocating motion.
  4. 4. The lifting fine tuning table according to claim 2, wherein a base (11) is arranged at the bottom of the shell (1), and a belt groove (12) for accommodating the connecting belt (7) is formed in the base (11).
  5. 5. A lifting and lowering fine tuning rig according to claim 1, characterised in that the guide rail (4) is a cross roller guide rail (4).
  6. 6. A lifting and trimming table according to claim 1, wherein adjacent guide rails (4) are spaced apart by 120 degrees.
  7. 7. A lifting fine tuning table according to claim 1, characterized in that the top of the carrier block (2) is provided with a stage (13) fixedly connected thereto.
  8. 8. The lifting fine tuning table according to claim 1, wherein the first optocoupler (15) and the second optocoupler (16) are respectively arranged outside the shell (1) from top to bottom, the light shielding sheet (14) which moves up and down synchronously with the bearing block (2) is arranged, and the round trip point of the moving path of the light shielding sheet (14) is the first optocoupler (15) and the second optocoupler (16).

Description

Lifting fine tuning table Technical Field The utility model relates to the technical field of fine tuning tables, in particular to a lifting fine tuning table. Background The lifting fine tuning table is a displacement platform for realizing precise adjustment in the vertical direction and is commonly used in the fields of optical experiments, laser equipment, precise manufacturing and the like. The device controls the platform to move up and down in a trace way through the screw, the guide rail or the electric mechanism, has the characteristics of stable structure, fine adjustment, convenient operation and the like, and is suitable for working environments requiring high positioning precision and stability; The existing fine tuning table has the following problems that the existing similar electric pushing cylinder in the market has larger volume required by the same load, complex structure, large assembly and maintenance difficulty and relatively poor overall precision and stability, and the existing similar single-set guide rail in the market is a symmetrical layout product, has relatively poor overall precision and stability and relatively weak capability of resisting lateral force in the installation direction of the vertical guide rail component; The utility model aims to solve the technical problem of providing a lifting fine tuning table with higher precision. Disclosure of utility model The utility model aims to solve the technical problems of providing a lifting fine tuning table with higher precision, which realizes stable and controllable lifting of a bearing block in the vertical direction through a precise mechanical structure design, has the characteristics of compact structure, high movement precision and good stability, and has the core structure that a shell is in sliding fit with the bearing block, three slots are formed in the shell at equal intervals along the circumferential direction, guide rails are embedded in the slots, one end of each guide rail is fixed on the shell, and the other end of each guide rail is connected with the bearing block to form a three-point guide system. The three-point support structure design enables the bearing block to effectively avoid deflection, skew or shaking in the lifting process, and the lifting stability and the repeated positioning accuracy are improved. A lifting fine tuning table comprises a shell, wherein a bearing block in sliding fit with the shell up and down is arranged in the shell, three grooves are formed in the shell at equal intervals in a surrounding mode, guide rails are arranged in the grooves, fixed ends of the guide rails are fixedly connected with the shell, sliding ends of the guide rails are fixedly connected with the bearing block, and a driving mechanism is arranged to enable the bearing block to reciprocate up and down. Preferably, the driving mechanism comprises a driving motor, a belt pulley connected with the bottom of the bearing block is arranged at the bottom of the bearing block, a connecting belt is wound between a rotating shaft of the driving motor and the belt pulley, and the driving motor drives the connecting belt to move so as to drive the belt pulley to move. Preferably, the device is also provided with a rotating shaft piece connected with the belt pulley, and is provided with a shaft seat in threaded connection with the rotating shaft piece, the shaft seat is fixedly connected with the bearing block, and the rotating shaft piece is driven to rotate by the belt pulley through forward and reverse rotation of the driving motor, so that the bearing block can realize up-and-down reciprocating motion. Preferably, the bottom of the shell is provided with a base, and a belt groove for accommodating a belt is formed on the base. Preferably, the guide rail is a cross roller guide rail. Preferably, adjacent rails are 120 degrees apart. Preferably, the top of the bearing block is provided with an objective table fixedly connected with the bearing block. Preferably, the first optocoupler and the second optocoupler are respectively arranged outside the shell from top to bottom, the light shielding sheet which moves up and down synchronously with the bearing blocks is arranged, and the round trip point of the moving path of the light shielding sheet is the first optocoupler and the second optocoupler. Compared with the prior art, the lifting fine tuning table has the beneficial effects that stable and controllable lifting of the bearing block in the vertical direction is realized through a precise mechanical structure design, the lifting fine tuning table has the characteristics of compact structure, high movement precision and good stability, the core structure is formed by sliding fit of the shell and the bearing block, three slots are formed in the shell at equal intervals along the circumferential direction, guide rails are embedded in the slots, one end of each guide rail is fixed on the shell, and the other end of e