CN102195439B - Multi-stator multi-rotor array linear motor driving device - Google Patents

Abstract

The present invention proposes a multi-stator multi-mover array type linear motor driving device, which includes a plurality of linear drive modules and connecting parts, and a plurality of linear driving modules are installed on the connecting parts, and each linear driving module includes: a linear motor stator; Single linear guide rail pair on the end face; single linear guide rail pair on the lower end face; multiple linear motor movers, including multiple upper linear motor movers and multiple lower linear motor movers, the upper linear motor movers are controlled by the magnetic field provided by the linear motor stator Under the action, the upper sliding seat is driven to perform reciprocating linear motion along the axial direction of the upper linear guide rail, and the lower linear motor mover drives the lower sliding seat to perform reciprocating linear motion along the axial direction of the lower linear guide rail under the action of the magnetic field provided by the linear motor stator. The present invention can directly drive your working platform without reverse working dead zone, and the reciprocating linear motions between multiple linear drive modules and multiple linear motor movers do not interfere with each other.

Description

A multi-stator multi-mover array linear motor drive device

technical field

The invention relates to the field of mechanical manufacturing, in particular to a multi-stator and multi-mover array type linear motor driving device.

Background technique

Linear motor is a transmission device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion mechanism. The side evolved from the stator is called the primary, and the side evolved from the rotor is called the secondary. In practice, the primary and secondary are manufactured to different lengths to ensure that the coupling between the primary and secondary remains constant over the required travel range. Linear motors can be short primary and long secondary, or long primary and short secondary. Considering the manufacturing cost and operating cost, short primary and long secondary are generally used at present.

The working principle of the linear induction motor is as follows: when the primary winding is connected to the AC power supply, a traveling wave magnetic field will be generated in the air gap, and the secondary will induce an electromotive force and generate a current under the cutting of the traveling wave magnetic field. The interaction of the magnetic fields in the gap produces electromagnetic thrust. If the primary is fixed, the secondary will move in a straight line under the action of thrust; otherwise, the primary will move in a straight line.

There are many occasions that require linear motion in punch presses and wafer manufacturing. In order to improve production efficiency, there are high requirements on the speed and acceleration of linear motion. The intermediate transmission link of the traditional "rotary motor + ball screw" reduces the stiffness, and the elastic deformation makes the order of the system higher, thereby reducing the robustness of the system.

Contents of the invention

The purpose of the present invention is to at least solve one of the above-mentioned technical defects, and in particular propose a multi-stator multi-mover array linear motor drive device in which the reciprocating linear motions between the multi-movers do not interfere with each other

In order to achieve the above purpose, an embodiment of the present invention proposes a multi-stator multi-moving sub-array type linear motor driving device, which includes a plurality of linear drive modules and connecting parts, and the plurality of linear driving modules are installed on the connecting parts. Wherein each linear drive module includes: a linear motor stator; a single linear guide rail pair on the upper end surface, the single linear guide rail pair on the upper end surface is located on the upper end surface of the linear motor stator, and includes an upper end surface fixed on the linear motor stator an upper linear guide rail, a plurality of upper slides and a plurality of upper slides, wherein the plurality of upper slides and a plurality of upper slides are slidably mounted on the upper linear guide and each of the upper slides The two ends of each are respectively connected with an upper slider; the lower end surface single linear guide rail pair, the lower end surface single linear guide rail pair is located on the lower end surface of the linear motor stator, including the lower linear guide rail fixed on the lower end surface of the linear motor stator a guide rail, a plurality of lower seats and a plurality of lower sliders, wherein the plurality of lower seats and the plurality of lower sliders are slidably mounted on the lower linear guide rail and the two ends of each of the lower seats are respectively connected There is a lower slider; a plurality of linear motor movers, the plurality of linear motor movers include a plurality of upper linear motor movers and a plurality of lower linear motor movers, wherein each of the upper linear motor movers is connected to the linear motor movers Each upper sliding seat is fixedly connected, and the upper linear motor mover drives the upper sliding seat connected with the upper linear motor mover along the upper straight line under the action of the magnetic field provided by the linear motor stator. The axial direction of the guide rail performs reciprocating linear motion, each of the lower linear motor movers is fixedly connected with each of the lower seats, and the lower linear motor movers are under the action of the magnetic field provided by the linear motor stator, Drive the sliding seat connected with the lower linear motor mover to perform reciprocating linear motion along the axial direction of the lower linear guide rail.

According to the embodiment of the present invention, the multi-stator and multi-mover array linear motor drive device can directly drive your working platform without reverse working dead zone, and the reciprocating motion between multiple linear drive modules and multiple linear motor movers Linear motion does not interfere with each other.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is a three-dimensional structural schematic diagram of a multi-stator multi-mover sub-array linear motor drive device according to an embodiment of the present invention;

Fig. 2 is a three-dimensional structural schematic diagram of a multi-stator multi-mover sub-array linear drive device according to another embodiment of the present invention;

FIG. 3 is a schematic diagram of the upper end surface of a linear drive module according to an embodiment of the present invention; and

Fig. 4 is a schematic diagram of the lower end surface of the linear drive module according to the embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.

The following describes a multi-stator multi-mover sub-array linear motor drive device 1000 according to an embodiment of the present invention with reference to FIGS. 1 to 4 .

As shown in FIG. 1 and FIG. 2 , a multi-stator multi-moving sub-array linear motor drive device 1000 according to an embodiment of the present invention includes a plurality of linear drive modules 100 and connecting components 200 . Wherein, a plurality of linear drive modules 100 are installed on the connection part 200 . Specifically, each linear drive module 100 is fixed on the connection part 200 by bolts. In one embodiment of the present invention, the left end and the right end of each linear driving module 100 are respectively fixed in the grooves of the connecting part 200 by bolts.

As shown in FIG. 3 and FIG. 4 , each linear drive module 100 includes a linear motor stator 110 , a single linear guide pair on the upper end, a single linear guide pair on the lower end, and multiple linear motor movers. The stator 110 of the linear motor and the mover of the linear motor are connected by a single linear guide rail pair on the upper end surface and a single linear guide rail pair on the lower end face to form an "n"-shaped structure.

A magnet 111 is embedded inside the linear motor stator 110 . In an example of the present invention, a row of magnetic steel 111 is embedded inside the stator 110 of the linear motor, and the end faces of the magnetic steel 111 are honeycomb-shaped hexagons.

In one embodiment of the present invention, the linear motor stator 110 may be an austenitic stainless steel plate.

As shown in Figure 3, the upper end surface single linear guide rail pair is located on the upper end surface (upward in Figure 3) of the linear motor stator 110, including an upper linear guide rail 121 fixed on the upper end surface of the linear motor stator 110, and a plurality of upper sliding seats 131 and multiple upper sliders. A plurality of upper sliding seats 131 and a plurality of upper sliding blocks are slidably mounted on the upper linear guide rail 121 . Two ends of each upper sliding seat 131 are respectively connected with an upper slider. A first upper slider 141 a and a second upper slider 141 b are respectively connected to two ends of the upper slider 131 . In one embodiment of the present invention, both ends of each upper linear guide rail 131 are respectively connected to the first upper slider 141 a and the second upper slider 141 b through bolts.

As shown in Figure 4, the lower end surface single linear guide rail pair is located at the lower end surface of the linear motor stator 110 (downward in Figure 4), including the lower linear guide rail 122 fixed on the upper end surface of the linear motor stator 110, a plurality of sliding seats 132 and Multiple lower sliders. A plurality of lower seats 132 and a plurality of lower sliders are slidably installed on the lower linear guide rail 122 . Two ends of each lower seat 132 are respectively connected with a lower slider. A first lower slider 142a and a second lower slider 142b are respectively connected to two ends of the lower seat 132 . In one embodiment of the present invention, both ends of each lower linear guide rail 132 are respectively connected to the first lower slider 142a and the second lower slider 142b through bolts.

The plurality of linear motor movers includes a plurality of upper linear motor movers 151 and a plurality of lower linear motor movers 152 . As shown in FIG. 3 , each upper linear motor mover 151 is fixedly connected with each upper sliding seat 131 in a one-to-one correspondence. As shown in FIG. 4 , each lower linear motor mover 152 is fixedly connected with each lower seat 132 in a one-to-one correspondence.

In one embodiment of the present invention, each upper linear motor mover 151 is fixedly connected to each upper sliding seat 131 in a one-to-one correspondence with bolts. Each lower linear motor mover 152 is fixedly connected to each lower seat 132 by bolts in a one-to-one correspondence.

Each linear motor mover is a steel block composed of printed circuit board coils, that is, each upper linear motor mover 151 and each lower linear motor mover 152 is a steel block composed of printed circuit board coils. In an example of the present invention, the upper linear motor mover 151 and the lower linear motor mover 152 may be rectangular.

In one embodiment of the present invention, the upper linear motor mover 151 and the lower linear motor mover 152 may be spaced apart from each other along the axial direction of the linear motor mover 110 in the up and down direction (the up and down direction in FIG. 3 and FIG. 4 ). Staggered.

Of course, those skilled in the art can understand that the installation method of the linear motor mover is not limited thereto. The upper linear motor mover group composed of a plurality of upper linear motor movers 151 can be continuously arranged along the axial direction of the linear motor mover 110, and the lower linear motor mover group composed of a plurality of lower linear motor movers 152 can be moved along the linear motor axis. The sub-groups 110 are arranged continuously in the axial direction, and the upper linear motor mover group and the lower linear motor mover group are spaced apart from each other and arranged staggeredly along the vertical direction. Moreover, the number of upper linear motor movers 151 in different upper linear motor mover subgroups may be different, and the number of lower linear motor movers 152 in different lower linear motor mover subgroups may be different.

When the linear motor driving device provided by the embodiment of the present invention works, the linear motor stator 110 interacts with the upper linear motor mover 151 and the lower linear motor mover. The upper linear motor mover 151 receives a thrust parallel to the axial direction of the upper linear guide rail 121 under the action of the magnetic field provided by the linear motor stator 110 . The upper linear motor mover 151 drives the upper sliding seat 131 to perform reciprocating linear motion along the axial direction of the upper linear guide rail 121 . The lower linear motor mover 152 receives a thrust parallel to the axial direction of the lower linear guide rail 122 under the action of the magnetic field provided by the linear motor stator 110 . The lower linear motor mover 152 drives the sliding seat 132 to perform reciprocating linear motion along the axial direction of the lower linear guide rail 122 .

In one embodiment of the present invention, the reciprocating linear motions of the respective linear motor movers are independent of each other. Specifically, the reciprocating linear motions of the upper linear motor mover 151 and the lower linear motor mover 152 are independent of each other and do not interfere with each other. The reciprocating linear motions among the upper linear motor movers 151 are independent of each other and do not interfere with each other. The reciprocating linear motions between the multiple lower linear motor movers 153 are also independent of each other and do not interfere with each other.

In one embodiment of the present invention, the reciprocating linear motions of the linear drive modules 100 are independent of each other.

According to the embodiment of the present invention, the multi-stator and multi-mover array linear motor drive device can directly drive your working platform without reverse working dead zone, and the reciprocating motion between multiple linear drive modules and multiple linear motor movers Linear motion does not interfere with each other.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

1. A multi-stator and multi-mover array type linear motor driving device, characterized in that, the linear motor driving device includes a plurality of linear drive modules and connecting parts, and the plurality of linear driving modules are installed on the connecting parts , the left end and the right end of each linear drive module are respectively fixed in the grooves of the connecting parts by bolts, wherein each linear drive module includes: A linear motor stator; The upper end surface single linear guide rail pair, the upper end surface single linear guide rail pair is located on the upper end surface of the linear motor stator, including an upper linear guide rail fixed on the upper end surface of the linear motor stator, a plurality of upper slides and a plurality of upper A slider, wherein the plurality of upper sliders and the plurality of upper sliders are slidably mounted on the upper linear guide rail and two ends of each upper slider are respectively connected to an upper slider; The single linear guide rail pair on the lower end surface, the single linear guide rail pair on the lower end surface is located on the lower end surface of the stator of the linear motor, including the lower linear guide rail fixed on the lower end surface of the stator of the linear motor, a plurality of sliding seats and a plurality of sliding block, wherein, the plurality of lower seats and the plurality of lower blocks are slidably mounted on the lower linear guide rail and two ends of each of the lower seats are respectively connected to a lower block; A plurality of linear motor movers, the plurality of linear motor movers include a plurality of upper linear motor movers and a plurality of lower linear motor movers, Each of the upper linear motor movers is fixedly connected with each of the upper sliding seats, and the upper linear motor movers drive the upper linear motor movers under the action of the magnetic field provided by the linear motor stators. The connected upper sliding seat performs reciprocating linear motion along the axial direction of the upper linear guide rail, wherein the upper linear motor mover and the lower linear motor mover are spaced apart from each other along the axial direction of the linear motor stator Arranged staggered up and down; Each of the lower linear motor movers is fixedly connected to each of the lower seats, and under the action of the magnetic field provided by the linear motor stator, the lower linear motor movers drive the The sliding seat performs reciprocating linear motion along the axial direction of the lower linear guide rail. 2 . The linear motor driving device according to claim 1 , wherein the linear motor stator is an austenitic stainless steel plate embedded with magnetic steel. 3 . 3 . The linear motor driving device according to claim 2 , wherein the end face of the magnetic steel is honeycomb hexagonal. 4 . 4. The linear motor driving device according to claim 1, wherein each of the linear motor movers is a steel block composed of printed circuit board coils. 5. The linear motor driving device according to claim 1, characterized in that, each upper linear motor mover is fixedly connected to each upper sliding seat through bolts, and each lower linear motor mover is fixedly connected to each upper slide seat through bolts. Bolts are fixedly connected with each of the lower seats. 6. The linear motor driving device according to claim 1, wherein the two ends of each upper slide seat are respectively connected with one of the upper slide blocks by bolts, and the two ends of each lower slide seat are connected by bolts. The bolts are respectively connected with one of the lower sliders. 7 . The linear motor drive device according to claim 1 , wherein the reciprocating linear motions of the respective linear drive modules are independent of each other. 8. The linear motor driving device according to claim 1, characterized in that the reciprocating linear motions of the respective linear motor movers are independent of each other.

Images