CN211728289U

CN211728289U - Linear electric motor double-drive gantry structure

Info

Publication number: CN211728289U
Application number: CN201922384100.XU
Authority: CN
Inventors: 范东绪; 吴蛟
Original assignee: Fengzhigu Intelligent Equipment Shenzhen Co ltd
Current assignee: Fengzhigu Intelligent Equipment Shenzhen Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-23
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a two longmen structures that drive of linear electric motor, comprising a base plate, the up end of bottom plate has Y1 axle base and Y2 axle base of symmetrical arrangement respectively, the equal longitudinal arrangement in middle part of Y1 axle base and Y2 axle base up end has linear electric motor, fixedly connected with Y axle movable plate on linear electric motor's the active cell, Y axle movable plate passes through guide rail and Y1 axle base and Y2 axle base sliding connection, fixedly connected with crossbeam between the Y axle movable plate, the crossbeam passes through linear electric motor is provided with the X axle movable plate, the X axle movable plate passes through guide rail and crossbeam sliding connection, X axle movable plate and Y axle are provided with tank chain mounting and tank chain mounting respectively, the utility model relates to a movable plate longmen structure technical field. This two gantry structures that drive of linear electric motor has solved current linear electric motor gantry structure and has had the position control precision poor, the unreasonable problem of structural design.

Description

Linear electric motor double-drive gantry structure

Technical Field

The utility model relates to a gantry structure technical field specifically is a linear electric motor drives gantry structure two times.

Background

A linear motor is an electric drive device that converts electrical energy directly into linear motion mechanical energy. It can save a lot of intermediate transmission mechanisms, accelerate the system reflection speed, and improve the system accuracy, so it is widely used. The types of linear motors can be classified according to structural forms; single-sided flat type, double-sided flat type, disc type, cylinder type (or called tube type), and the like; according to the working principle, the method can be divided into the following steps: dc, asynchronous, synchronous, step, and the like.

The gantry structure is frequently used in an automatic machining center, the linear motor is widely used as a driving device in the gantry structure due to simple structure, the machining of products with multiple degrees of freedom is realized, and the existing gantry structure with the linear motor has the problems of poor position control precision and unreasonable structural design.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a two longmen structures that drive of linear electric motor has solved current linear electric motor longmen structure and has had the position control precision poor, the unreasonable problem of structural design.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a linear motor double-drive gantry structure comprises a base plate, wherein Y1 shaft bases and Y2 shaft bases are symmetrically arranged on the upper end face of the base plate respectively, linear motors are longitudinally arranged in the middles of the upper end faces of the Y1 shaft bases and the Y2 shaft bases respectively, a Y shaft moving plate is fixedly connected to a rotor of each linear motor and is respectively in sliding connection with the Y1 shaft bases and the Y2 shaft bases through guide rails, a cross beam is fixedly connected between the Y shaft moving plates and is provided with an X shaft moving plate through the linear motors, the X shaft moving plate is in sliding connection with the cross beam through the guide rails, buffer devices are arranged on the two sides of the guide rails on the upper end faces of the Y1 shaft bases, the Y2 shaft bases and the Y shaft moving plates, displacement sensors are arranged on one sides of the X shaft moving plates and one side of the Y shaft moving plates, chains and tanks are arranged on the upper portions of the Y1 shaft bases, the Y2 shaft bases and the cross beams through wiring, and the X-axis moving plate and the Y-axis moving plate are respectively provided with a first tank chain fixing part and a second tank chain fixing part.

Preferably, the models of the linear motors arranged on the cross beam, the Y1 shaft base and the Y2 shaft base are the same.

Preferably, the buffer device is a hydraulic buffer, and the upper end surfaces of the Y1 shaft base, the Y2 shaft base and the Y axis moving plate are respectively provided with a hydraulic buffer fixing cover.

Preferably, the displacement sensor adopts a magnetic grid ruler displacement sensor, and the inner side walls of the Y1 shaft base and the Y2 shaft base and the front end face of the cross beam are provided with magnetic grid rulers matched with the displacement sensor.

Preferably, photoelectric sensors are arranged on the inner side walls of the Y1 shaft base and the Y2 shaft base and on two sides of the front end face of the cross beam, which are located on the magnetic grid ruler, and the X-axis moving plate and the Y-axis moving plate are fixedly connected with shading sheets on the same side of the displacement sensor.

(III) advantageous effects

The utility model provides a linear electric motor drives gantry structure two times. The method has the following beneficial effects:

the linear motor double-drive gantry structure is characterized in that buffering devices are arranged on two sides of a guide rail on the upper end faces of a Y1 shaft base, a Y2 shaft base and a Y shaft moving plate respectively, the buffering devices are oil buffers, oil buffer fixing covers are arranged on the upper end faces of the Y1 shaft base, the Y2 shaft base and the Y shaft moving plate respectively, vibration and noise generated in the moving process of the X shaft moving plate and the Y shaft moving plate can be effectively reduced by adopting the oil buffers as the buffering devices, an effective buffering stop function is achieved at the same time, the daily maintenance cost is reduced, displacement sensors are arranged on one sides of the X shaft moving plate and the Y shaft moving plate respectively, the displacement sensors adopt magnetic grid ruler displacement sensors, the magnetic grid rulers are designed in a magnetoelectric mode, the positions of rotors are generated and provided by using magnetic induction devices and changes of magnetic fields, and traditional code discs are replaced by the magnetic devices, the photoelectric encoder has the advantages that the defect of the photoelectric encoder is overcome, the photoelectric encoder is more resistant to vibration, corrosion and pollution, reliable in performance and simpler in structure, the grating ruler calculates the accuracy by scribing a code disc, the higher the accuracy is, the larger the code disc is, the larger the size of the encoder is, and the accuracy is not continuous. The magnetic grid ruler has no such limitation, can be small in size and high in precision, so that the control on the position precision of the X-axis moving plate and the Y-axis moving plate is effectively improved, the inner side walls of the Y1-axis base and the Y2-axis base and the front end surface of the cross beam are respectively provided with the magnetic grid ruler matched with the displacement sensor, the inner side walls of the Y1-axis base and the Y2-axis base and the front end surface of the cross beam are respectively provided with a photoelectric sensor, the same sides of the X-axis moving plate and the Y-axis moving plate on the displacement sensor are fixedly connected with a light shading sheet, the photoelectric sensors are arranged on the Y-axis base and the cross beam and are matched with the light shading sheet on the XY moving plate, when the light shading sheet reaches the upper part of the photoelectric sensors, the next moving plate of the XY-axis moving plate can be controlled to effectively control the maximum and minimum strokes of the XY-axis, therefore, the purposes of accurately controlling the motion of the XY axis moving plate and simplifying the whole structure layout are achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the tank chain structure of the present invention;

fig. 3 is the whole structure schematic diagram of another view angle of the tank chain not installed in the utility model.

In the figure: 1Y 1 axle base, 2 linear electric motor, 3 bottom plates, 4X axle movable plates, 5Y 2 axle base, 6Y axle movable plates, 7 buffer, 8 first tank chain mounting, 9 photoelectric sensing ware, 10 displacement sensor, 11 guide rails, 12 hydraulic buffer fixed cowlings, 13 tank chain, 14 second tank chain mounting, 15 walk line mounting, 16 crossbeams.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a linear motor double-drive gantry structure comprises a bottom plate 3, wherein Y1 shaft bases 1 and Y2 shaft bases 5 are symmetrically arranged on the upper end face of the bottom plate 3 respectively, linear motors 2 are longitudinally arranged in the middles of the upper end faces of the Y1 shaft bases 1 and the Y2 shaft bases 5 respectively, Y-axis moving plates 6 are fixedly connected to the rotors of the linear motors 2, the Y-axis moving plates 6 are respectively connected with the Y1 shaft bases 1 and the Y2 shaft bases 5 in a sliding mode through guide rails 11, cross beams 16 are fixedly connected between the Y-axis moving plates 6, the cross beams 16 are provided with X-axis moving plates 4 through the linear motors 2, the X-axis moving plates 4 are connected with the cross beams 16 in a sliding mode through the guide rails 11, the types of the linear motors 2 arranged on the cross beams 16, the Y1 shaft bases 1 and the Y2 shaft bases 5 are all the same, the linear motors 2 of the same type are adopted by the whole driving device, and daily maintenance and replacement of the motors are convenient, the upper end surfaces of the Y1 shaft base 1, the Y2 shaft base 5 and the Y shaft moving plate 6 are respectively provided with a buffer device 7 at two sides of a guide rail 11, the buffer devices 7 are oil buffers, the upper end surfaces of the Y1 shaft base 1, the Y2 shaft base 5 and the Y shaft moving plate 6 are respectively provided with an oil buffer fixing cover 12, the oil buffers are adopted as the buffer devices 7, vibration and noise generated in the moving process of the X shaft moving plate 4 and the Y shaft moving plate 6 can be effectively reduced, an effective buffering stopping effect is achieved at the same time, the daily maintenance cost is reduced, displacement sensors 10 are respectively arranged at one sides of the X shaft moving plate 4 and the Y shaft moving plate 6, the displacement sensors 10 adopt magnetic grid ruler displacement sensors, the magnetic grid ruler adopts a magnetoelectric design, the position of a rotor is generated and provided by the change of a magnetic field through a magnetic induction device, the grating ruler is used for calculating the precision by scribing the code disc, so that the higher the precision is, the larger the code disc is, the larger the size of the encoder is, and the precision is not continuous. The magnetic grid ruler has no such limitation, the size is small, the precision is high, and the control on the position precision of the X-axis moving plate 4 and the Y-axis moving plate 6 is effectively improved, the inner side walls of the Y1-axis base 1 and the Y2-axis base 5 and the front end surface of the cross beam 16 are respectively provided with the magnetic grid ruler matched with the displacement sensor 10, the inner side walls of the Y1-axis base 1 and the Y2-axis base 5 and the front end surface of the cross beam 16 are respectively provided with the photoelectric sensors 9 at two sides of the magnetic grid ruler, the same sides of the X-axis moving plate 4 and the Y-axis moving plate 6 at the displacement sensor 10 are fixedly connected with the light shading sheet, the photoelectric sensors 9 are arranged on the Y-axis base and the cross beam 16 and are matched with the light shading sheet on the XY-axis moving plate, when the light shading sheet reaches the upper part of the photoelectric sensors 9, the next action of the XY-axis moving plate can be, the function of protecting the whole XY axis moving plate is achieved, the tank chain 13 is arranged on the Y1 axis base 1, the Y2 axis base 5 and the upper portion of the cross beam 16 through the wiring fixing piece 15, and the first tank chain fixing piece 8 and the second tank chain fixing piece 14 are arranged on the X axis moving plate 4 and the Y axis moving plate 6 respectively.

When the device works, the buffer devices 7 are arranged on the two sides of the guide rail 11 on the upper end surfaces of the Y1 shaft base 1, the Y2 shaft base 5 and the Y shaft moving plate 6, the buffer devices 7 are oil pressure buffers, the oil pressure buffer fixing covers 12 are arranged on the upper end surfaces of the Y1 shaft base 1, the Y2 shaft base 5 and the Y shaft moving plate 6, the oil pressure buffers are adopted as the buffer devices 7, the vibration and noise generated in the moving process of the X shaft moving plate 4 and the Y shaft moving plate 6 can be effectively reduced, the effective buffering stopping effect is achieved, the daily maintenance cost is reduced, the displacement sensors 10 are arranged on one sides of the X shaft moving plate 4 and the Y shaft moving plate 6, the displacement sensors 10 adopt magnetic grid ruler displacement sensors, the magnetic grid ruler adopts a magnetoelectric design, the position of a rotor is generated and provided by the change of a magnetic field through a magnetic induction device, the grating ruler is used for calculating the precision by scribing the code disc, so that the higher the precision is, the larger the code disc is, the larger the size of the encoder is, and the precision is not continuous. The magnetic grid ruler has no such limitation, the size is small, the precision is high, the control on the position precision of the X-axis moving plate 4 and the Y-axis moving plate 6 is effectively improved, the inner side walls of the Y1-axis base 1 and the Y2-axis base 5 and the front end surface of the cross beam 16 are respectively provided with the magnetic grid ruler matched with the displacement sensor 10, the inner side walls of the Y1-axis base 1 and the Y2-axis base 5 and the front end surface of the cross beam 16 are respectively provided with the photoelectric sensors 9 at two sides of the magnetic grid ruler, the same sides of the X-axis moving plate 4 and the Y-axis moving plate 6, which are positioned on the displacement sensor 10, are fixedly connected with the light shielding sheets, the photoelectric sensors 9 are arranged on the Y-axis base and the cross beam 16 and are matched with the light shielding sheets on the XY-axis moving plate, when the light shielding sheets reach the upper part of the photoelectric sensors 9, the next action of the XY, the function of protecting the whole XY axis moving plate is achieved, so that the purposes of accurately controlling the motion of the XY axis moving plate and simplifying the layout of the whole structure are achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a linear electric motor drives gantry structure doubly, includes bottom plate (3), its characterized in that: the upper end face of the bottom plate (3) is symmetrically provided with a Y1 shaft base (1) and a Y2 shaft base (5) respectively, the middle parts of the upper end faces of the Y1 shaft base (1) and the Y2 shaft base (5) are longitudinally provided with a linear motor (2), a rotor of the linear motor (2) is fixedly connected with a Y shaft moving plate (6), the Y shaft moving plate (6) is respectively connected with the Y1 shaft base (1) and the Y2 shaft base (5) in a sliding manner through a guide rail (11), a cross beam (16) is fixedly connected between the Y shaft moving plates (6), the cross beam (16) is provided with an X shaft moving plate (4) through the linear motor (2), the X shaft moving plate (4) is connected with the cross beam (16) in a sliding manner through the guide rail (11), the two sides of the upper end faces of the Y1 shaft base (1), the Y2 shaft base (5) and the Y shaft moving plate (6) which are positioned on the guide rail (11) are provided, x axle movable plate (4) all are provided with displacement sensor (10) with Y axle movable plate (6) one side, the upper portion of Y1 axle base (1), Y2 axle base (5) and crossbeam (16) all is provided with tank chain (13) through walking line mounting (15), X axle movable plate (4) are provided with first tank chain mounting (8) and second tank chain mounting (14) respectively with Y axle movable plate (6).

2. The linear motor double-drive gantry structure of claim 1, wherein: the models of the linear motors (2) arranged on the cross beam (16), the Y1 shaft base (1) and the Y2 shaft base (5) are all the same.

3. The linear motor double-drive gantry structure of claim 1, wherein: the buffer device (7) is a hydraulic buffer, and the upper end faces of the Y1 shaft base (1), the Y2 shaft base (5) and the Y shaft moving plate (6) are respectively provided with a hydraulic buffer fixing cover (12).

4. The linear motor double-drive gantry structure of claim 1, wherein: the displacement sensor (10) adopts a magnetic grid ruler displacement sensor, and the inner side walls of the Y1 shaft base (1) and the Y2 shaft base (5) and the front end face of the cross beam (16) are provided with magnetic grid rulers matched with the displacement sensor (10).

5. The linear motor double-drive gantry structure of claim 4, wherein: y1 axle base (1) and Y2 axle base (5) inside wall and crossbeam (16) preceding terminal surface are located the both sides of magnetic grid chi and all are provided with photoelectric sensing ware (9), X axle movable plate (4) and Y axle movable plate (6) are located the homonymy fixedly connected with shade of displacement sensor (10).