Linear motor variable pitch module with ultra-short pitch

Abstract

The utility model discloses a linear motor variable pitch module with an ultra-short pitch, which relates to the technical field of linear motors and comprises a base, a sliding rail is fixedly mounted on the base, a stator is further fixedly mounted in the base, a plurality of slidable sliding block groups are arranged on the sliding rail, a sliding seat is fixedly mounted at the top of each sliding block group, and the sliding seat is fixedly mounted on the base. And rotors are fixedly installed at the bottoms of the multiple sliding seats correspondingly, a grating ruler is fixedly installed on one side of the base, and a reading head used for reading the numerical value of the grating ruler is arranged on one side of each sliding seat. The driving structure is mainly composed of a sliding rail, a plurality of sliding block groups, a plurality of sliding seats, a stator, a plurality of rotors installed in the sliding seats, a reading head fixed on one side of the plurality of sliding seats, a grating ruler, a photoelectric switch I and an induction sheet I, and a photoelectric switch II and an induction sheet II are matched for use, so that the linear motor variable-pitch module has an ultra-short spacing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motors, in particular to a variable pitch module of a linear motor with an ultra-short pitch. Background Art

[0002] A linear motor is a transmission device that converts electrical energy directly into linear motion without requiring any intermediate conversion mechanism. It can be thought of as a rotary motor cut radially and flattened into a flat surface. This eliminates the need for a large number of intermediate transmission mechanisms, speeding up system response and improving system accuracy. It replaces traditional mechanisms such as ball screws, belt drives, and rack and pinion drives, leading to its widespread application. Linear motors are classified by structure into: single-sided flat, double-sided flat, disc-shaped, cylindrical (or tube-shaped) types; and by operating principle into: DC, asynchronous, synchronous, and stepper.

[0003] A utility model disclosed in Chinese patent publication number CN208461661U proposes a linear motor. This motor, through the design of a position feedback system, achieves accurate positioning and ease of control. Its simple and rational structural design enables high-precision, high-speed point-to-point motion. It is safe, stable, and widely applicable. The iron-core linear motor is suitable for high-speed, precise point-to-point positioning and large load applications. It is easy to operate, disassemble, and adjust. However, after studying the existing technology, it was found that there is a lack of ultra-short-pitch linear motor variable-pitch modules. Therefore, the present utility model proposes an ultra-short-pitch linear motor variable-pitch module. Utility Model Content

[0004] Technical problems solved

[0005] The purpose of the present invention is to remedy the deficiencies of the prior art and to provide a linear motor variable pitch module with an ultra-short pitch.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a linear motor variable pitch module with an ultra-short pitch, comprising a base, a slide rail fixedly mounted on the base, a stator fixedly mounted in the base, a plurality of slidable slider groups arranged on the slide rail, a slide seat fixedly mounted on the top of each slider group, a mover fixedly mounted on the bottom of each of the slide seats, a grating ruler fixedly mounted on one side of the base, a reading head for reading the grating ruler value arranged on one side of each slide seat, and a photoelectric switch fixedly mounted on the other side of each slide seat. and sensor sheet 1, a sensor sheet 2 is fixedly installed on one side of each slide, and a plurality of photoelectric switches 2 for use with the sensor sheet 2 are evenly distributed and fixed on one side of the base. The driving structure of the utility model is mainly composed of a slide rail, on which a plurality of closely adjacent slidable slider groups and slides, a stator, and a plurality of movers installed in the slide. In addition, a reading head fixed on one side of the plurality of slides and a grating ruler are used in combination, and the photoelectric switch 1 and the sensor sheet 1, and the photoelectric switch 2 and the sensor sheet 2 are used in combination, so that the linear motor pitch variable module has an ultra-short spacing effect.

[0008] Preferably, end plates are fixedly connected to both sides of the base, and there are two end plates.

[0009] Preferably, anti-collision blocks are fixedly connected to the inner sides of the two end plates, and there are two anti-collision blocks.

[0010] Preferably, a cover plate is fixedly mounted on the top of the two end plates.

[0011] Preferably, anti-collision rubber pads are provided on both sides of the plurality of slide seats.

[0012] Preferably, the reading head is fixed to one side of the slide via a reading head bracket.

[0013] Beneficial effects:

[0014] Compared with the existing technology, this ultra-short pitch linear motor variable pitch module has the following beneficial effects:

[0015] The driving structure of the utility model mainly consists of a slide rail, on which are provided a plurality of closely adjacent slidable slider groups and slide seats, a stator, and a plurality of movers installed in the slide seats. In addition, a reading head fixed on one side of the plurality of slide seats and a grating ruler are used in conjunction with each other, and the photoelectric switch 1 and the sensor sheet 1, as well as the photoelectric switch 2 and the sensor sheet 2 are used in conjunction with each other, so that the linear motor pitch variable module can have an ultra-short pitch effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the utility model with the cover removed;

[0019] Figure 3 This is a schematic diagram of the installation structure of the grating ruler and the reading head of the utility model;

[0020] Figure 4 It is a structural diagram of the mover of the utility model.

[0021] In the picture:

[0022] 1. Base; 2. Slide rail; 3. Slider assembly; 4. Stator; 5. Slide seat; 6. Mover; 7. Anti-collision pad; 8. Grating scale; 9. Reading head; 10. Reading head bracket; 11. Photoelectric switch 1; 12. Sensor plate 1; 13. Photoelectric switch 2; 14. Sensor plate 2; 15. End plate; 16. Anti-collision block; 17. Cover plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4As shown, the utility model provides a technical solution: an ultra-short pitch linear motor variable pitch module, including a base 1, a slide rail 2 is fixedly installed on the base 1, a stator 4 is also fixedly installed in the base 1, a plurality of slidable slider groups 3 are provided on the slide rail 2, a slide seat 5 is fixedly installed on the top of each slider group 3, and a mover 6 is fixedly installed on the bottom of the plurality of slide seats 5. A grating ruler 8 is fixedly installed on one side of the base 1, and a reading head 9 for reading the value of the grating ruler 8 is provided on one side of each slide seat 5. A photoelectric switch 11 and a sensor sheet 12 are fixedly installed on the other side of each slide seat 5. A sensing piece 2 14 is fixedly installed on one side, and a plurality of photoelectric switches 2 13 for use with the sensing piece 2 14 are fixed at equal intervals on one side of the base 1. The driving structure of the utility model is mainly composed of a slide rail 2, on which a plurality of closely adjacent slidable slider groups 3 and slides 5, a stator 4, and a plurality of movers 6 installed in the slide 5 are provided. In addition, a reading head 9 fixed on one side of the plurality of slides 5 and a grating ruler 8 are used in combination, and the photoelectric switch 11 and the sensing piece 12, the photoelectric switch 2 13 and the sensing piece 2 14 are used in combination, so that the linear motor pitch variable module has an ultra-short pitch effect.

[0025] Please pay attention to Figure 1 、 Figure 3 and Figure 4 End plates 15 are fixedly connected to both sides of the base 1, and there are two end plates 15. Anti-collision blocks 16 are fixedly connected to the inner sides of the two end plates 15, and there are two anti-collision blocks 16. Cover plates 17 are fixedly installed on the tops of the two end plates 15.

[0026] Please pay attention to Figure 2 Anti-collision pads 7 are provided on both sides of the multiple slides 5.

[0027] Please pay attention to Figure 3 The reading head 9 is fixed to one side of the slide 5 through the reading head bracket 10.

[0028] Working principle: A plurality of closely adjacent slidable slider groups 3 and slides 5 are provided on the slide rail 2. Under the driving cooperation of the stator 4 and the plurality of movers 6 installed in the slide 5, the plurality of slides 5 can be moved in position. In addition, the reading head 9 fixed on one side of the plurality of slides 5 and the grating ruler 8 are used in combination, and the photoelectric switch 11 and the sensor piece 12, the photoelectric switch 2 13 and the sensor piece 2 14 are used in combination, which can make the positioning of the ultra-short pitch linear motor variable pitch module more accurate and the use effect better.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-short pitch linear motor variable pitch module, comprising a base (1), characterized in that: A slide rail (2) is fixedly mounted on the base (1), a stator (4) is also fixedly mounted in the base (1), a plurality of slidable slider groups (3) are provided on the slide rail (2), a slider (5) is fixedly mounted on the top of each slider group (3), a mover (6) is fixedly mounted on the bottom of each of the sliders (5), a grating scale (8) is fixedly mounted on one side of the base (1), a reading head (9) for reading the value of the grating scale (8) is provided on one side of each slider (5), a photoelectric switch (11) and a sensor plate (12) are fixedly mounted on the other side of each slider (5), a sensor plate (14) is fixedly mounted on one side of each slider (5), and a plurality of photoelectric switches (13) for use with the sensor plate (14) are fixedly mounted on one side of the base (1) at equal intervals.

2. The ultra-short pitch linear motor variable pitch module according to claim 1, characterized in that: End plates (15) are fixedly connected to both sides of the base (1), and there are two end plates (15).

3. The ultra-short pitch linear motor variable pitch module according to claim 2, characterized in that: The inner sides of the two end plates (15) are both fixedly connected with anti-collision blocks (16), and there are two anti-collision blocks (16).

4. The ultra-short pitch linear motor variable pitch module according to claim 3, characterized in that: A cover plate (17) is fixedly mounted on the top of the two end plates (15).

5. The ultra-short pitch linear motor variable pitch module according to claim 1, characterized in that: Anti-collision rubber pads (7) are provided on both sides of the plurality of slide seats (5).

6. The ultra-short pitch linear motor variable pitch module according to claim 1, characterized in that: The reading head (9) is fixed to one side of the slide (5) via a reading head bracket (10).

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