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CN-112865476-B - Guide rail embedded linear motor module

CN112865476BCN 112865476 BCN112865476 BCN 112865476BCN-112865476-B

Abstract

The invention discloses a guide rail embedded linear motor module which comprises a guide rail and a sliding block, wherein grooves are respectively arranged on the inner surface of the sliding block and the two sides of the guide rail, rolling body rollways made of carbon steel or stainless steel are embedded in the grooves, return holes are arranged in the sliding block, return end covers are fixedly arranged at the left end and the right end of the sliding block, a rotary groove is arranged in the return end covers, rolling bodies made of stainless steel are arranged in the rolling body rollways, the return holes are positioned above the rolling body rollways, a magnetic grating ruler or a grating reading head is arranged on the guide rail, a linear motor stator is arranged on the guide rail, a linear motor rotor corresponding to the linear motor stator is arranged on the sliding block, and the motor rotor is communicated with a power supply. The invention ensures that the rolling bodies do not pass through the magnetic induction line range when in rotation, ensures that the rolling bodies are not magnetized, and ensures the smoothness of the rotation of the rolling bodies.

Inventors

  • GUAN JINGKAI
  • FENG JIANWEN
  • LI BAOHENG

Assignees

  • 广东凯特精密机械有限公司

Dates

Publication Date
20260508
Application Date
20210223

Claims (10)

  1. 1. The guide rail embedded linear motor module is characterized by comprising a guide rail (1) and a sliding block (2) arranged on the guide rail (1); Grooves are respectively formed in the inner surface of the sliding block (2) and two sides of the guide rail (1), rolling body rolling paths (23) made of carbon steel or stainless steel are embedded in the grooves, return holes (22) are formed in the sliding block (2), return end covers (9) are fixedly arranged at the left end and the right end of the sliding block (2), rotary grooves which are communicated with the rolling body rolling paths (23) and the return holes (22) are formed in the return end covers (9), and rolling circulation rotary channels are formed by the rolling body rolling paths (23), the return holes (22) and the rotary grooves, and rolling bodies (3) made of stainless steel are arranged in the rolling circulation rotary channels; The rolling body rolling way (23) is positioned in the middle of the inner side of the guide rail (1), so that the sliding block (2) is embedded in the guide rail (1), and the return hole (22) is positioned above the rolling body rolling way (23); a magnetic grating ruler or a grating ruler (4) is arranged on the guide rail (1), and a magnetic grating reading head corresponding to the magnetic grating ruler or a grating reading head (5) corresponding to the grating ruler (4) is arranged on the sliding block (2); The linear motor is characterized in that the guide rail (1) is provided with a linear motor stator (6), the sliding block (2) is provided with a linear motor rotor (7) corresponding to the linear motor stator (6), and the motor rotor (7) is communicated with a power supply.
  2. 2. The guide rail embedded linear motor module of claim 1, wherein the linear motor rotor (7) is embedded and packaged in a concave position (21) of the sliding block (2).
  3. 3. The guide rail embedded linear motor module as claimed in claim 1, wherein the linear motor stator (6) is fixedly arranged in a groove (11) of the guide rail (1).
  4. 4. The guide rail embedded linear motor module as claimed in claim 1, wherein ribs for clamping the rolling body roller path (23) are arranged in the grooves.
  5. 5. The guide rail embedded linear motor module as claimed in claim 1, wherein the rolling bodies (3) are balls, rollers or rolling pins.
  6. 6. The guide rail embedded linear motor module of claim 1, wherein the left end and the right end of the sliding block (2) are fixedly provided with anti-collision blocks (8).
  7. 7. The guide rail embedded linear motor module as claimed in claim 6, wherein the anti-collision block (8) is a conical rubber block.
  8. 8. The guide rail embedded linear motor module as claimed in claim 1, wherein the magnetic grating ruler or the grating ruler (4) is fixed on the outer side of the guide rail (1).
  9. 9. The guide rail embedded linear motor module as set forth in claim 1, wherein the guide rail (1) is composed of a base and a rail arranged on the base.
  10. 10. The guide rail embedded linear motor module set forth in claim 1, wherein the magnetic grating reading head or the grating reading head (5) is fixed on the outer side of the sliding block (2).

Description

Guide rail embedded linear motor module Technical Field The invention belongs to the technical field of linear motion modules, and particularly relates to a guide rail embedded linear motor module. Background The linear motor module directly converts electric energy into mechanical energy of linear motion by expanding a closed magnetic field into an open magnetic field, and a transmission device of any intermediate conversion mechanism is not needed. The linear motor is generally formed by combining a guide rail, a sliding block, a screw rod, an aluminum alloy part and the like, and linear motion is realized by a movable linear motor stator through a non-contact magnetic induction principle. At present, because the requirements of the use working conditions are that the requirements on the appearance structure of the linear motor module are more compact, the requirements on the response and the running speed of the linear motor module are higher, and the requirements on repeated positioning and position accuracy are also higher, the use requirements of customers cannot be met by the conventional linear motor module structure. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the guide rail embedded linear motor module for realizing high-speed response and operation. The invention provides a guide rail embedded linear motor module, which comprises a guide rail and a sliding block arranged on the guide rail; Grooves are respectively formed in the inner surface of the sliding block and two sides of the guide rail, rolling body rollways made of carbon steel or stainless steel are embedded in the grooves, return holes are formed in the sliding block, return end covers are fixedly arranged at the left end and the right end of the sliding block, rotary grooves which are communicated with the rolling body rollways and the return holes are formed in the return end covers, rolling circulation rotary channels are formed by the rolling body rollways, the return holes and the rotary grooves, and rolling bodies made of stainless steel are arranged in the rolling circulation rotary channels; wherein the return hole is positioned above the rolling body raceway; The guide rail is provided with a magnetic grating ruler or a grating ruler, and the sliding block is provided with a magnetic grating reading head corresponding to the magnetic grating ruler or a grating reading head corresponding to the grating ruler; The linear motor is characterized in that a linear motor stator is arranged on the guide rail, a linear motor rotor corresponding to the linear motor stator is arranged on the sliding block, and the motor rotor is communicated with a power supply. According to some embodiments of the invention, the linear motor mover is embedded and encapsulated in the concave position of the slider. According to some embodiments of the invention, the linear motor stator is fixedly mounted in a groove of the guide rail. According to some embodiments of the invention, ribs for clamping the rolling body raceways are arranged in the grooves. According to some embodiments of the invention, the rolling elements are balls, rollers or needles. According to some embodiments of the invention, the left end and the right end of the sliding block are fixedly provided with anti-collision blocks. According to some embodiments of the invention, the crash block is a tapered rubber block. According to some embodiments of the invention, the magnetic grating ruler or grating ruler is fixed on the outer side of the guide rail. According to some embodiments of the invention, the rail is comprised of a base and a track disposed on the base. According to some embodiments of the invention, the magnetic or grating read head is fixed on the outside of the slider. The guide rail embedded linear motor module at least has the advantages that an original screw rod is omitted for conducting transmission guiding on a sliding block, a linear motor stator is fixed on the guide rail, a linear motor rotor is integrally and hermetically installed on the sliding block, the design is compact in overall structure, space is reasonably utilized, rigidity of a body is not reduced, maximization of thrust is achieved on a smaller structure, the linear motor stator and the linear motor rotor generate an alternating magnetic field, the sliding block is pushed to achieve reciprocating linear motion, the guide rail embedded linear motor module has the advantages of being higher in thrust density, high in rigidity, high in response, large in thrust and the like compared with a conventional linear motor, meanwhile, position information of a magnetic grating ruler or a grating ruler fixed on the guide rail is read through a magnetic grating reading head or a grating reading head, accurate positioning of the sliding block is achieved, meanwhile, a rolling body is manufactured t