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CN-224229091-U - Totally-enclosed linear motor sliding table structure

CN224229091UCN 224229091 UCN224229091 UCN 224229091UCN-224229091-U

Abstract

The utility model relates to a totally-enclosed linear motor sliding table structure which comprises a base, a steel belt, a rotor seat and a sliding seat, wherein the base is provided with an inner cavity and a guide slot communicated with the inner cavity, the rotor seat is slidably arranged in the inner cavity through a sliding component, one end of the sliding seat is fixedly connected with the rotor seat, the other end of the sliding seat protrudes out of the base through the guide slot to form a workbench, two ends of the workbench are respectively provided with a group of tensioning mechanisms, two ends of the steel belt are fixed on the base and cover the guide slot, the steel belt is tensioned through the two groups of tensioning mechanisms and used for dynamically sealing the guide slot, and a protective cover is further arranged at the top of the workbench and covers the two groups of tensioning mechanisms.

Inventors

  • HE KENING
  • HE DUAN
  • WU JIE

Assignees

  • 东莞市泰莱自动化科技有限公司

Dates

Publication Date
20260512
Application Date
20250716

Claims (10)

  1. 1. A fully-closed linear motor sliding table structure is characterized by comprising a base (1), a steel belt (2), a rotor seat (3) and a sliding seat (4), wherein the base (1) is provided with an inner cavity and a guide slot (5) communicated with the inner cavity, the rotor seat (3) is slidably installed in the inner cavity through a sliding component (6), one end of the sliding seat (4) is fixedly connected with the rotor seat (3), the other end of the sliding seat (4) protrudes out of the base (1) through the guide slot (5) to form a workbench (41), two ends of the workbench (41) are respectively provided with a group of tensioning mechanisms, two ends of the steel belt (2) are fixed on the base (1) and cover the guide slot (5), the steel belt (2) is tensioned through the two groups of tensioning mechanisms and is used for dynamically sealing the guide slot (5), a protective cover (8) is further arranged at the top of the workbench (41), and the protective cover (8) covers the two groups of tensioning mechanisms.
  2. 2. The fully-closed linear motor sliding table structure according to claim 1, wherein the two groups of tensioning mechanisms are parallel and coplanar, each group of tensioning mechanisms comprises a first roller (71) and a second roller (72) which are parallel and coplanar, the first rollers (71) of the two groups of tensioning mechanisms are arranged close to each other, the second rollers (72) of the two groups of tensioning mechanisms are arranged far away from each other, the lower surface of the steel belt (2) sequentially passes through the two first rollers (71) to form a bulge section (21) crossing a workbench (41), the two second rollers (72) are respectively arranged at two ends of the bulge section (21), the second rollers (72) are pressed against the upper surface of the bulge section (21), and the first rollers (71) and the second rollers (72) are respectively arranged at two sides of the steel belt (2) to enable the bulge section (21) to be tensioned and cling to the top of the sliding seat (4).
  3. 3. The structure of claim 2, wherein the working table (41) is provided with a sinking accommodating groove (42), the first roller (71) is mounted in the accommodating groove (42) through a first shaft, and the wheel body of the first roller (71) protrudes out of the accommodating groove (42) and is used for supporting the raised section (21) of the steel belt (2).
  4. 4. The fully-closed linear motor sliding table structure according to claim 2, wherein two ends of the protective cover (8) protrude out of two ends of the workbench (41), a mounting cavity for mounting the second roller (72) is formed between the end of the protective cover (8) and the end of the workbench (41), a mounting hole (81) is formed in the mounting cavity, the second roller (72) is provided with a second shaft, and the second shaft is inserted into the mounting hole (81) to enable the second roller (72) to be mounted on the protective cover (8).
  5. 5. The structure of claim 2, wherein the first roller (71) and the second roller (72) are respectively provided with two roller units, and the two roller units are matched to support two sides of the steel belt (2).
  6. 6. The structure of claim 2, wherein the first roller (71) and the second roller (72) have a mute layer on the surface.
  7. 7. The structure of claim 1, wherein the two ends of the working table (41) are respectively provided with a guiding inclined plane (43) for guiding the steel belt (2).
  8. 8. The fully-closed linear motor sliding table structure according to claim 1 is characterized in that the base (1) comprises a bottom plate (11), two end plates (12) and two side sealing plates (13) which are arranged on the bottom plate (11), the two end plates (12) and the two side sealing plates (13) are enclosed to form an inner cavity, the two side sealing plates (13) are provided with a body and horizontal flanges (14) which are formed by bending and extending from the body, guide slits (5) are formed between the two horizontal flanges (14), and two ends of the steel belt (2) are respectively fixed on the end plates (12) through pressing plates (15).
  9. 9. The structure of claim 8, wherein each of the horizontal flanges (14) has a clamping groove (16) at a side close to the guide slot (5), and the clamping grooves (16) of the two horizontal flanges (14) are respectively used for supporting two sides of the steel belt (2).
  10. 10. The fully-closed linear motor sliding table structure of claim 1, wherein the base (1) is further provided with an air pipe connector (9), the air pipe connector (9) is used for being connected with an external negative pressure source, so that a negative pressure environment is formed in the inner cavity of the base (1), and the steel belt (2) is tightly attached to the base (1).

Description

Totally-enclosed linear motor sliding table structure Technical Field The utility model relates to the technical field of linear sliding tables, and particularly discloses a totally-enclosed linear motor sliding table structure. Background The linear motor sliding table module is widely applied to the fields of semiconductor equipment, precision machine tools and the like due to high precision and high response characteristics, and a traditional linear motor generally adopts a semi-closed structure, so that dust can be generated inevitably due to friction of contact pieces such as a guide rail sliding block and the like, the linear motor sliding table module cannot be applied to a severe dust-free environment, and dust-free requirements of customers cannot be met. The totally-enclosed linear motor is based on the traditional linear motor, and core components such as a rotor and a stator of the motor are completely wrapped through structures such as a sealing ring and a sealing cover, so that dust generated during the operation of the sliding table can be prevented from drifting into the environment while external pollutants are isolated. The armor type protective cover and the flexible sealing belt are two sealing protection technologies commonly used in a closed linear motor, can effectively improve the dustproof and antifouling capacity of equipment, but are limited by structural design and material characteristics, and have certain defects, for example, the armor type protective cover is generally made of metal materials such as stainless steel sheets and steel plates, the integral weight of a sliding table is inevitably increased, the inertia of the protective cover needs to be additionally overcome when a rotor of the linear motor moves, the high-speed response performance is influenced, particularly in a scene of frequent start and stop or high-speed reciprocating motion, the energy consumption and the burden of the motor are increased, and the flexible sealing belt is made of nonmetal materials such as rubber, PVC, canvas and the like, so that the sealing performance is easy to degrade, and in addition, sharp fragments can scratch the surface of the sealing belt to damage the protective effect. Therefore, it is necessary to develop a novel totally-enclosed linear motor sliding table structure. Disclosure of utility model In order to overcome the defects in the prior art, the utility model aims to provide a totally-enclosed linear motor sliding table structure. The utility model aims to achieve the aim, and provides a totally-enclosed linear motor sliding table structure which comprises a base, a steel belt, a rotor seat and a sliding seat, wherein the base is provided with an inner cavity and a guide slot communicated with the inner cavity, the rotor seat is slidably arranged in the inner cavity through a sliding component, one end of the sliding seat is fixedly connected with the rotor seat, the other end of the sliding seat protrudes out of the base through the guide slot, two ends of the sliding seat are respectively provided with a group of tensioning mechanisms, two ends of the steel belt are fixed on the base and cover the guide slot, the steel belt is tensioned through the two groups of tensioning mechanisms and is used for dynamically sealing the guide slot, and a protective cover is further arranged outside the sliding seat and covers the sliding seat and the two groups of tensioning mechanisms. The two groups of tensioning mechanisms are parallel and coplanar, each group of tensioning mechanism comprises a first roller and a second roller which are parallel and coplanar, the first rollers of the two groups of tensioning mechanisms are arranged close to each other, the second rollers of the two groups of tensioning mechanisms are arranged far away from each other, the lower surface of the steel belt sequentially passes through the two first rollers to form a bulge section which spans the top of the sliding seat, the two second rollers are respectively positioned at two ends of the bulge section and are propped against the upper surface of the bulge section, and the first rollers and the second rollers are respectively positioned at two sides of the steel belt to enable the bulge section to be tensioned and cling to the top of the sliding seat. The sliding seat is further provided with a sunken accommodating groove, the first roller is installed in the accommodating groove through a first shaft, the wheel body of the first roller protrudes out of the accommodating groove and is used for supporting a raised section of the steel belt, two sides of the protective cover are respectively provided with mounting holes, the second shaft of the second roller is inserted into the two mounting holes to enable the second roller to be installed on the inner side of the protective cover, and the first roller and the second roller rotate around the first shaft and the second shaft respectively. Further, the