Rotor and slider integrated linear motor

Abstract

The present application discloses a rotor and slider integrated linear motor, comprising: a sliding assembly, a base, a magnetic track, sliding structures, and guide rails. The magnetic track is connected to the base, and the sliding assembly is provided with a rotor. The base has a first surface facing the sliding assembly, the base has a groove having an opening in the first surface, the groove is filled with the magnetic track, the magnetic track has a second surface facing the sliding assembly, and the second surface is flush with the first surface; the guide rails are arranged on the outer side walls of the base, and the guide rails are located on the side of the first surface away from the sliding assembly.

Description

A mover slider integrated linear motor

[0001] The present application claims priority to the Chinese patent application No. CN2024104294614, filed on April 10, 2024, and entitled "A mover slider integrated linear motor", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application belongs to the field of linear motor modules, and particularly relates to a mover slider integrated linear motor. BACKGROUND

[0003] The embedded guide rail linear motor module is a transmission device that integrates a guide rail in the base of a linear motor module. It combines the characteristics of traditional linear motors and screw modules, and its working principle is the same as that of a general linear motor, which is to drive the mover to move linearly on the guide rail through electromagnetic force.

[0004] In the existing embedded guide rail linear motor module, the base can accommodate the mover of the motor through the recess provided therein, so that the structure is compact, and the two sides of the motor can realize linear motion through the steel rails on both sides of the base. However, during the operation of the embedded guide rail linear motor module, the base is easily deformed by the magnetic attraction force of the motor, thereby affecting the precision and stability of the module.

[0005] SUMMARY

[0006] To solve the above problems, the purpose of the present application is to provide a mover slider integrated linear motor that can reduce the deformation of the base caused by magnetic attraction force.

[0007] To achieve the above purpose, the technical solution of the present application is as follows:

[0008] The present application provides a mover slider integrated linear motor, comprising a sliding assembly, a base, a magnetic rail, a sliding structure, and a guide rail. The magnetic rail is connected with the base, the sliding assembly is provided with a mover, and the mover is oppositely arranged with the magnetic rail.

[0009] The base is provided with a first surface facing the sliding assembly, the base is provided with a groove opening at the first surface, the magnetic rail is filled in the groove, the magnetic rail is provided with a second surface facing the sliding assembly, and the second surface is flush with the first surface. The guide rail is arranged on the outer side wall of the base, the guide rail is located on the side of the first surface away from the sliding assembly, the sliding structure is arranged on the sliding assembly, and the sliding structure is slidingly connected with the guide rail, so that the sliding assembly slides relative to the base.

[0010] The mover slider integrated linear motor of the present application, the sliding assembly includes the mover and the sliding platform, the mover is integrally filled with the sliding platform.

[0011] The mover slider integrated linear motor of the present application, the magnetic track is fixedly connected with the base.

[0012] The mover slider integrated linear motor of the present application, the outer side wall of the base is provided with a groove, and the guide rail is embedded in the groove.

[0013] The mover slider integrated linear motor of the present application, the sliding assembly is provided with a first boss on both sides of the base, the first boss is provided with a mounting groove, and the sliding structure is embedded in the mounting groove on both sides.

[0014] The mover slider integrated linear motor of the present application, the sliding structure includes a reflux device, the reflux device is provided with a plurality of rollable balls, the guide rail is provided with a sliding groove, and the plurality of balls are rollingly connected in the sliding groove.

[0015] The mover slider integrated linear motor of the present application, the side wall of the sliding assembly is provided with an oil cup communicated with the mounting groove, so as to lubricate the sliding between the sliding structure and the guide rail.

[0016] The mover slider integrated linear motor of the present application, the side wall of the sliding assembly is further provided with a connector for connecting a power line, and the connector is connected with the mover.

[0017] The mover slider integrated linear motor of the present application, the sliding assembly includes the mover and the sliding platform, and the side of the sliding platform facing the base is provided with a receiving groove, and the mover is located in the receiving groove.

[0018] The mover slider integrated linear motor of the present application, the sliding platform is provided with a cooling fin on the side wall of the receiving groove, and / or the sliding platform is provided with a cooling hole in the side of the receiving groove.

[0019] The mover slider integrated linear motor of the present application further includes two end covers and a cover plate, the base is provided with the end cover at the front and rear ends, the end cover is fixedly connected with the base, the cover plate is connected between the two end covers, the sliding cavity is formed between the cover plate and the base, and the sliding assembly is slidably arranged in the sliding cavity.

[0020] The mover slider integrated linear motor of the application, the second boss and two limiting tables are arranged on the sliding assembly away from the base, the two limiting tables are arranged on the two sides of the second boss, the limiting grooves are formed between the two limiting tables and the second boss, the limiting plates are downwardly extended on the two sides of the cover plate, the two limiting plates are respectively arranged in the two limiting grooves, and the limiting plates slide relative to the limiting grooves.

[0021] The inner side of the end cover of the mover slider integrated linear motor of the application is further provided with an anti-collision rubber pad.

[0022] The side wall of the sliding assembly of the mover slider integrated linear motor of the application is further provided with a photoelectric sensing sheet, the side wall of the base is provided with a photoelectric sensor matched with the photoelectric sensing sheet, and the photoelectric sensing sheet and the photoelectric sensor are in position correspondence.

[0023] The side wall of the sliding assembly of the mover slider integrated linear motor of the application is further provided with a linear encoder, and the side wall of the base is provided with a grating ruler matched with the linear encoder.

[0024] In the mover slider integrated linear motor of the application, the base cavity structure of the traditional linear motor module is optimized, the first surface of the base is flush with the second surface of the magnetic rail, and a non-cavity integral power structure is formed. In this way, the side walls on both sides of the base in the groove are shortened, when the guide rail is subjected to the pressure applied by the sliding assembly through the sliding structure and applies inward pressure to the outer side wall of the base, the side walls on both sides of the base in the groove are difficult to deform due to the shortening of the force arm. Moreover, since the magnetic rail is filled in the groove, the magnetic rail directly contacts the side walls on both sides of the base in the groove without gap, when the guide rail is subjected to the pressure applied by the sliding assembly through the sliding structure and applies inward pressure to the outer side wall of the base, the magnetic rail and the base as a whole can support the side walls on both sides of the base in the groove to prevent the side walls on both sides of the base in the groove from deforming. Therefore, the mover slider integrated linear motor of the application can significantly reduce the deformation of the base caused by magnetic attraction, thereby ensuring the precision and stability of the operation of the linear motor. In actual application, the equipment can be accurately and stably operated, without causing equipment failure, thereby ensuring production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor based on the structures shown in the drawings.

[0026] Fig. 1 is a schematic diagram of an embedded guide rail linear motor module structure in the prior art;

[0027] Fig. 2 is a schematic diagram of a mover slider integrated linear motor according to an embodiment of the present application;

[0028] Fig. 3 is an exploded view of the mover slider integrated linear motor according to an embodiment of the present application;

[0029] Fig. 4 is an exploded view of the mover of the mover slider integrated linear motor according to an embodiment of the present application;

[0030] Fig. 5 is a schematic diagram of the base of the mover slider integrated linear motor according to an embodiment of the present application;

[0031] Fig. 6 is a sectional view of the mover slider integrated linear motor according to an embodiment of the present application.

[0032] Fig. 10: sliding assembly; Fig. 11: sliding platform; 11a: accommodating groove; 11b: limiting groove; 111: first boss; 111a: mounting groove; 1111: mounting piece; 112: second boss; 113: limiting platform; 114: cooling fin; 115: cooling hole; 116: third surface; Fig. 12: mover; 121: protruding part; 122: fourth surface; Fig. 13: oil cup; Fig. 14: joint; Fig. 20: base; 20a: groove; 20b: trench; 21: first surface; Fig. 30: magnetic rail; 31: second surface; Fig. 50: guide rail; 50a: sliding groove; Fig. 60: sliding structure; 61: backflow device; Fig. 70: end cover; 71: anti-collision rubber pad; Fig. 80: cover plate; 81: limiting plate; Fig. 91: photoelectric sensing sheet; Fig. 92: photoelectric sensor; Fig. 93: linear encoder; Fig. 94: grating ruler. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0035] It should also be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0036] In addition, the description in the present application involving "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0037] As shown in FIG. 1, in the conventional embedded guide rail linear motor module, the base has a concave cavity, the mover and the stator of the motor are placed in the cavity, and the sliding table connected with the mover is slidingly connected to the steel rail on the outer wall of the base on the side of the cavity. When the embedded guide rail linear motor module is in operation, the mover and the stator generate a magnetic field, which, under the action between the mover and the stator, causes the sliding table to generate a pressure towards the base. This pressure will further act on the steel rail and generate a component force towards the middle of the base and a component force towards the bottom of the base, and the side walls of the base on both sides of the cavity will be subjected to the pressure applied by the steel rail. Since the cavity needs to accommodate both the stator and the mover, the length of the side walls of the base on both sides of the cavity is relatively long, and since the mover and the cavity have a gap, when subjected to the pressure applied by the steel rail towards the middle of the base, the side walls of the base on both sides of the cavity are prone to deformation. After deformation, the structure of the cavity itself changes, resulting in poor precision of linear motion of the module, and the stability of the module also deteriorates. It should be noted that in actual use, this instability can cause the equipment to run inaccurately, and even cause equipment failure, thereby affecting production efficiency.

[0038] In addition, the cavity space of the conventional embedded module needs to accommodate the mover and the stator, and also needs to have a gap with the mover, so the cavity space is relatively large, resulting in a large running gap of the conventional embedded module. The larger the gap, the louder the noise generated. This noise not only affects the normal operation of the equipment, but also to some extent destroys the quietness of the use environment, causing unnecessary disturbance to the use environment.

[0039] Furthermore, since the sliding structure of the sliding table is close to the mover, a magnetic field is generated between the mover and the stator during operation of the embedded guide rail linear motor module, the balls on the rail cut the magnetic lines during operation, causing the rail and the balls to be electrically eroded, which affects the precision and stability of the linear motor module.

[0040] To this end, the embodiment of the present application provides a mover sliding block integrated linear motor, which can significantly reduce the deformation of the base caused by electromagnetic attraction to the guide rail, thereby ensuring the precision and stability of the linear motor operation.

[0041] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.

[0042] To achieve the above object, the technical scheme of the present application is as follows:

[0043] As shown in FIG. 2 and FIG. 6, the embodiment provides a mover sliding block integrated linear motor, which comprises a sliding assembly 10, a base 20, a magnetic rail 30, a sliding structure 60 and a guide rail 50. The magnetic rail 30 is connected with the base 20, the sliding assembly 10 is provided with a mover 12, and the mover 12 is oppositely arranged with the magnetic rail 30. The base 20 is provided with a first surface 21 facing the sliding assembly 10, and the base 20 is provided with a groove 20a opening at the first surface 21. The magnetic rail 30 is filled in the groove 20a, and the magnetic rail 30 is provided with a second surface 31 facing the sliding assembly 10, which is flush with the first surface 21. The guide rail 50 is arranged on the outer side wall of the base 20, and the guide rail 50 is located on the side of the first surface 21 away from the sliding assembly 10. The sliding structure 60 is arranged on the sliding assembly 10, and the sliding structure 60 is slidingly connected with the guide rail 50, so that the sliding assembly 10 slides relative to the base 20.

[0044] It should be noted that during operation of the linear motor, a magnetic field is generated between the mover 12 and the magnetic rail 30, and the mover 12 is subjected to the magnetic attraction of the magnetic rail 30, which causes the sliding assembly 10 as a whole to be subjected to the attraction force towards the base. The sliding assembly 10 will generate pressure towards the base 20 through the sliding structure 60, for example, the sliding assembly 10 will exert pressure on the guide rail 50 through the balls in the sliding structure 60. This pressure has a component towards the middle of the base 20 and a component towards the bottom of the base 20, and the outer side wall of the base 20 is subjected to the pressure towards the inside.

[0045] In the embodiment of the present application, the base cavity structure of the traditional linear motor module is optimized, the first surface 21 of the base 20 is flush with the second surface 31 of the magnetic rail 30, forming a non-cavity type overall power structure. In this way, the side walls on both sides of the base 20 in the groove 20a are shortened, and when the guide rail 50 is subjected to the pressure applied by the sliding assembly 10 through the sliding structure 60 and applies inward pressure to the outer side wall of the base 20, it is difficult to deform due to the shortening of the force arm. Moreover, since the magnetic rail 30 fills in the groove 20a, the magnetic rail 30 will be in direct contact with the side walls of the base 20 on both sides of the groove 20a without any gap, and when the guide rail 50 is subjected to the pressure applied by the sliding assembly 10 through the sliding structure 60 and applies inward pressure to the outer side wall of the base 20, the magnetic rail 30 and the base 20 as a whole can support the base 20 on both sides of the groove 20a to prevent the base 20 on both sides of the groove 20a from deforming. Therefore, the mover slider integrated linear motor of the present application can significantly reduce the deformation of the base 20 caused by magnetic attraction, thereby ensuring the accuracy and stability of the linear motor operation. In actual use, it can ensure the accurate and stable operation of the equipment and prevent equipment failure, thereby ensuring production efficiency.

[0046] Moreover, it should be noted that the guide rail 50 is usually made of a steel rail with sufficient strength to ensure that it can stably support the sliding assembly 10 to slide relative to the base 20. When the linear motor is operating, a magnetic field will be generated between the mover 12 and the magnetic rail 30, which will generate a magnetic attraction force on the sliding structure 60, for example, on the balls inside it, thereby affecting the smoothness of the balls inside the guide rail 50 when they are running. In the embodiment, since the guide rail 50 is located on the side of the first surface 21 away from the sliding assembly 10, the sliding structure 60 is to some extent away from the magnetic field between the mover 12 and the magnetic rail 30, the mover 12 and the magnetic rail 30 reduce the magnetic attraction force on the sliding structure 60, further reducing the magnetic attraction force affecting the smoothness of the sliding structure 60 and the guide rail 50.

[0047] In addition, in the embodiment of the present application, since the magnetic rail 30 fills in the groove 20a, the first surface 21 of the base 20 is flush with the second surface 31 of the magnetic rail 30, so that the groove 20a has no extra space, thereby reducing the running gap of the entire linear motor, on the one hand, making the structure of the linear motor more compact, on the other hand, also reducing the noise generated during the operation of the linear motor, ensuring the normal operation of the linear motor, making the use environment more quiet and comfortable.

[0048] Furthermore, in the embodiment of the present application, when the linear motor is in operation, a magnetic field is generated between the mover 12 and the magnetic track 30. Since the sliding structure 60 is slidingly connected to the guide rail 50, and the guide rail 50 is located on the outer side wall of the base 20, the guide rail 50 and the sliding structure 60 are located away from the side between the mover 12 and the magnetic track 30. Therefore, the sliding structure 60 and the guide rail 50 are away from the magnetic field, so that the magnetic field cutting effect of the magnetic field on the sliding structure 60 and the guide rail 50 is weakened, and thus the electric corrosion generated on the sliding structure 60 and the guide rail 50 can be reduced, so as to ensure that the sliding structure 60 is stably and reliably slidingly connected to the guide rail 50, and thus the precision and stability of the operation of the linear motor can be ensured.

[0049] As shown in FIG. 5, in the embodiment of the present application, part of the guide rail 50 is located on the side of the groove bottom of the groove 20a towards the first surface 21. In this way, the guide rail 50 can not be too far away from the sliding assembly 10, and the sliding structure 60 can not be too deep into the base 20, so that the linear motor as a whole is more compact and does not occupy too much volume.

[0050] As shown in FIG. 4, in the embodiment of the present application, the sliding assembly 10 comprises the mover 12 and the sliding platform 11, and the mover 12 is integrally formed with the sliding platform 11 by glue filling. In this way, the complicated glue filling mold can be omitted, the production process can be optimized, and the cost can be reduced. Such a structure enables the sliding platform 11 and the mover 12 to be combined into one whole, and the relative displacement or error between the two can be avoided, so as to ensure the precision and stability of the linear motor in operation, and thus the accurate and stable operation of the equipment connected by the sliding platform 11 can be ensured.

[0051] As shown in FIGS. 3 and 5, in the embodiment of the present application, the magnetic track 30 is fixedly connected with the base 20. Such a structure enables the magnetic track 30 and the base 20 to be combined into one whole, and the relative displacement or error between the two can be avoided, so as to enable the sliding assembly 10 slidingly connected thereon to operate accurately and stably, and ensure the precision and stability of the linear motor in operation. For example, the magnetic track 30 and the base 20 can be fixedly connected by screws or adhesion. Of course, in other embodiments, the magnetic track 30 and the base 20 can also be integrally formed by glue filling, so as to optimize the production process and reduce the cost.

[0052] As shown in FIGS. 3 and 5, in the embodiment of the present application, the outer side wall of the base 20 is provided with a groove 20b, and the guide rail 50 is embedded in the groove 20b. In this way, the guide rail 50 can be stably installed on the outer side wall of the base 20, and thus the stability and reliability of the sliding of the sliding assembly 10 can be ensured. Moreover, the embedded guide rail 50 can not only avoid occupying the volume of the linear motor, but also can be protected by the recessed structure of the base 20, so as to improve the stability and reliability of the linear motor. Of course, in other embodiments, the guide rail 50 can also be directly fixed on the surface of the outer side wall of the base 20.

[0053] As shown in FIG. 4 and FIG. 6, in the embodiment of the present application, the sliding assembly 10 is provided with a first boss 111 on each side of the base 20, and the first boss 111 is provided with a mounting groove 111a. The sliding structure 60 is embedded in each mounting groove 111a. The outer side wall of each side of the base 20 is provided with a guide rail 50. The two sliding structures 60 and the two guide rails 50 correspond to each other. It should be noted that each sliding structure 60 is slidingly connected to the corresponding guide rail 50. Since the guide rail 50 is located on the outer side wall of each side of the base 20, after the two sliding structures 60 are slidingly connected to the two guide rails 50, the bosses on both sides of the sliding assembly 10 are clamped between the two sides of the base 20. In this way, it is ensured that the sliding assembly 10 can stably slide relative to the base 20. Moreover, the embedded sliding structure 60 can not only avoid occupying the volume of the linear motor, but also protect the sliding structure through the first boss 111, thereby improving the stability and reliability of the linear motor. For example, the sliding table plate 11 is provided with a first boss 111 on each side, and the mover 12 is located between the two first bosses 111.

[0054] As shown in FIG. 4 and FIG. 6, in the embodiment of the present application, the sliding structure 60 includes a return flow device 61, which is provided with a plurality of rollable balls. The guide rail 50 is provided with a sliding groove 50a, and the plurality of balls are rollingly connected in the sliding groove 50a. It should be noted that the return flow device 61 has a return flow channel in the shape of a closed loop, and the plurality of balls are arranged in the return flow channel. The part of the return flow channel facing the sliding groove 50a is in communication with the sliding groove 50a. While the plurality of balls roll in the return flow channel, they also roll along the sliding groove 50a. In this way, the friction between the sliding structure 60 and the guide rail 50 during sliding can be greatly reduced, which is conducive to the sliding of the sliding assembly 10 relative to the base 20, thereby improving the precision and stability of the operation of the linear motor. For example, the diameter of the balls is adapted to the diameter of the rolling space enclosed between the return flow channel and the sliding groove 50a, so as to further ensure the precision and stability of the operation of the linear motor.

[0055] As shown in FIG. 4 and FIG. 6, in the embodiment of the present application, each installation slot 111a is open towards the middle of the sliding assembly 10 and the side away from the sliding assembly 10, and the slot wall of the installation slot 111a away from the sliding assembly 10 is provided with a mounting piece 1111, and the middle of the backflow device 61 is provided with a fixing slot. When the backflow device 61 is installed in the installation slot 111a, the backflow device 61 can be placed into the installation slot 111a from the side of the installation slot 111a away from the sliding assembly 10, and the mounting piece 1111 is placed in the fixing slot, and the backflow device 61 is stably installed in the installation slot 111a by locking and connecting the pressing plate and the end of the mounting piece 1111, for example, the pressing plate and the mounting piece 1111 can be locked and connected by screws. For example, each installation slot 111a is provided with a plurality of mounting pieces 1111 arranged at intervals along the running direction of the sliding assembly 10, for fixing a plurality of backflow devices 61 arranged side by side, so as to ensure that the sliding assembly 10 can stably slide relative to the base 20, so that the base 20 can be compatible with sliding assemblies 10 of different sizes to meet the application requirements of different thrust and size. For example, each installation slot 111a is provided with two fixing pieces to install two backflow devices 61 arranged side by side.

[0056] As shown in FIG. 4, in the embodiment of the present application, the side wall of the sliding assembly 10 is provided with an oil cup 13 communicated with the installation slot 111a, so as to lubricate the sliding between the sliding structure 60 and the guide rail 50. The lubricating oil can be injected between the sliding structure 60 and the guide rail 50 through the oil cup 13, so as to realize lubrication, reduce the friction between the sliding structure 60 and the guide rail 50, and further ensure the stable and smooth operation of the sliding assembly 10 relative to the base 20. In the embodiment, the outer side of the sliding assembly 10 is provided with an oil hole communicated with the installation slot 111a, and the oil cup 13 is installed in the oil hole from the outer side of the sliding assembly 10, so as to inject oil between the sliding structure 60 and the guide rail 50. For example, the oil hole is communicated to the slot wall of the installation slot 111a away from the sliding assembly 10, and is directed to the backflow channel of the backflow device 61, and the lubricating oil can flow to the backflow channel along the oil hole, and the lubricating oil is carried to the sliding structure 60 and the guide rail 50 under the action of the rolling balls, for example, the rolling balls of the sliding structure 60 can be lubricated to lubricate the sliding between the sliding structure 60 and the guide rail 50. For example, the side wall of the sliding platform 11 is provided with an oil cup 13 communicated with the installation slot 111a, so as not to affect the operation of the mover 12.

[0057] As shown in FIG. 5 and FIG. 6, in the embodiment of the present application, the middle part of the base 20 is protruded to form a cavity plate, the first surface 21 and the groove 20a are located on one side of the cavity plate facing the sliding assembly 10, and the guide rail 50 is arranged on the outer side wall of the cavity plate adjacent to the first surface 21. The base 20 is provided with sliding accommodation grooves on both sides of the cavity plate, and the first protrusions 111 on both sides of the sliding assembly 10 are arranged in the sliding accommodation grooves. In this way, the linear motor is further simplified and compact, and does not occupy too much volume. Furthermore, the running gap of the entire linear motor is reduced, the noise generated by the linear motor during operation is reduced, the normal operation of the linear motor is ensured, and the use environment is more quiet and comfortable.

[0058] As shown in FIG. 4, in the embodiment of the present application, the side wall of the sliding assembly 10 is further provided with a connector 14 for connecting a power supply line, and the connector 14 is connected with the mover 12. It should be noted that the mover 12 is internally provided with a coil, which can generate a magnetic field after being powered on, and drive the mover 12 to move linearly relative to the magnetic rail 30, thereby realizing the sliding of the sliding assembly 10 relative to the base 20. In the embodiment, the connector 14 can be connected with the power connector to supply power to the coil inside the mover 12. Exemplarily, the connector is a plug-in connector, so that the connector 14 can be quickly connected with and disconnected from the power supply through the plug-in connector of the power supply, so that the use is more convenient.

[0059] It should be noted that for the traditional linear motor module, in order to supply power to the mover, a hole needs to be punched on the sliding table connected with the mover, and the wire of the mover is connected with the external power supply through the hole on the sliding table. Therefore, if the length of the wire of the mover is different, the mover with the corresponding length of the wire needs to be additionally manufactured, which is not conducive to the storage and production of motors with various lengths of wires. In addition, since the wire of the mover extends out of the sliding table, it is relatively inconvenient to replace and maintain the sliding table and the mover, and the sliding table or the motor is easily damaged. In the embodiment of the present application, the connector 14 is arranged on the side wall of the sliding assembly 10, and the power supply can be realized by connecting with the power connector. The length and arrangement of the wire of the mover 12 do not need to be considered, so that the production of the sliding assembly 10 is standardized and single, which is conducive to the storage and production of the sliding assembly 10, and the replacement and maintenance of the sliding assembly 10 are also relatively convenient, and will not be affected by the wire. The production process and maintenance process are simplified, the production efficiency is greatly improved, and strong support is provided for the interchangeability of the sliding assembly 10.

[0060] Exemplarily, in the sliding assembly 10, the mover 12 and the sliding platform 11 are integrally formed, the wire connected with the joint 14 and the mover 12 passes through the sliding platform 11 to be connected with the mover 12; of course, in yet some examples, the sliding platform 11 is provided with a first electric contact, the mover 12 is provided with a second electric contact, the first electric contact is connected with the joint 13, after the mover 12 is connected with the sliding platform 11, the second electric contact is connected with the first electric contact, the mover 12 is connected with the joint 13, thus, the sliding platform 11 and the mover 12 can be separately replaced and maintained.

[0061] As shown in FIG. 4 and FIG. 6, in the embodiment of the present application, the side of the sliding platform 11 facing the base 20 is provided with a receiving groove 11a, and the mover 12 is located in the receiving groove 11a. Since the magnetic track 30 is filled in the groove 20a, and the first surface 21 and the second surface 31 are flush, the mover 12 is placed in the receiving groove 11a, which can greatly reduce the gap between the sliding platform 11 and the base 20, so as to make the structure of the linear motor more compact, thereby reducing the noise generated during the operation of the linear motor, ensuring the normal operation of the linear motor, and making the use environment more quiet and comfortable. Moreover, when the sliding platform 11 and the mover 12 are integrally formed by glue filling, since the mover 12 is embedded in the receiving groove 11a, it is not necessary to use complicated molds to separately form the sliding platform 11 and the mover 12, which optimizes the production process and reduces the cost.

[0062] As shown in FIG. 4 and FIG. 6, in the embodiment of the present application, the sliding platform 11 is provided with a third surface 116 facing the first surface 21, and the mover 12 is provided with a fourth surface 122 facing the second surface 31, and the third surface 116 and the fourth surface 122 are flush. In this way, when the mover 12 and the magnetic track 30 are opposite and act, the gap between the first surface 21 and the third surface 116 is consistent with the gap between the second surface 31 and the fourth surface 122. The gap between the sliding platform 11 and the base 20 can be minimized, so as to make the structure of the linear motor more compact, thereby reducing the noise generated during the operation of the linear motor, ensuring the normal operation of the linear motor, and making the use environment more quiet and comfortable.

[0063] In the embodiment, the receiving groove 11a has a stepped groove at the groove bottom, and the mover 12 has a protruding part 121, which is placed in and filled in the stepped groove. In this way, the mover 12 can be further stably embedded in the receiving groove 11a.

[0064] As shown in FIG. 4 and FIG. 6, in the embodiment of the present application, the slide base plate 11 is provided with the heat dissipation fins 114 on the side wall of the circumferential side of the accommodating groove 11a. Since the mover 12 is placed in the accommodating groove 11a, the heat generated by the mover 12 can be transmitted to the heat dissipation fins 114 along the groove wall of the accommodating groove 11a, and the heat dissipation area of the slide assembly 10 is effectively increased through the heat dissipation fins 114, the heat dissipation efficiency of the slide assembly 10 is improved, and the continuous and stable operation of the linear motor is ensured. Exemplarily, the side of the slide base plate 11 away from the opening of the accommodating groove 11a is provided with a second boss 112 corresponding to the accommodating groove 11a, and the heat dissipation fins 114 are arranged on the side wall of the circumferential side of the second boss 112. Specifically, the heat dissipation fins 114 are located on both sides of the accommodating groove 11a and both sides of the stepped groove, and extend to both ends of the slide base plate 11 along the running direction of the slide base plate 11, so as to fully dissipate heat for the slide assembly 10.

[0065] As shown in FIG. 4 and FIG. 6, in the embodiment of the present application, the slide base plate 11 is provided with the heat dissipation holes 115 in the circumferential side of the accommodating groove 11a. The heat dissipation holes 115 can be connected with the air pipe and the water pipe, supporting two heat dissipation modes of air cooling and water cooling, and providing a more efficient heat dissipation mode for the slide assembly 10. In this way, the temperature rise of the slide assembly 10 can be inhibited, the stability and reliability of the linear motor in high load operation are ensured, and a more safe and reliable power solution is provided for the user. Exemplarily, the heat dissipation holes 115 are located on both sides of the accommodating groove 11a and extend to both ends of the slide base plate 11 along the running direction of the slide base plate 11, so as to fully dissipate heat for the slide assembly 10.

[0066] It should be understood that the heat dissipation fins 114 and the heat dissipation holes 115 can be set according to the needs, and can be set at the same time, so as to better dissipate heat for the slide assembly 10. Moreover, since the mover 12 is the main heat generating device, the heat dissipation fins 114 and / or the heat dissipation holes 115 are arranged on the circumferential side of the mover 12, so as to fully dissipate heat for the mover 12.

[0067] As shown in FIG. 3, FIG. 5 and FIG. 6, in the embodiment of the present application, the linear motor further comprises two end covers 70 and a cover plate 80, the front and rear ends of the base 20 are provided with the end covers 70, the end covers 70 are fixedly connected with the base 20, and the cover plate 80 is connected between the two end covers 70, the slide cavity is formed between the cover plate 80 and the base 20, and the slide assembly 10 is slidably arranged in the slide cavity. The end cover 70 can limit the sliding position of the slide assembly 10 in the running direction, so as to ensure the stable sliding of the slide assembly 10 on the base 20 and prevent the slide assembly 10 from being separated from the base 20 in the running direction. The cover plate 80 can protect the base 20, the magnetic track 30 and the slide assembly 10, and can also prevent the slide assembly 10 from being separated from the base 20 in the longitudinal direction, so as to ensure the stable sliding of the slide assembly 10 on the base 20.

[0068] As shown in FIG. 3 and FIG. 6, in the embodiment of the present application, the sliding assembly 10 is provided with a second boss 112 and two limiting blocks 113 away from the base 20, the two limiting blocks 113 are respectively arranged on the two sides of the second boss 112, and the limiting groove 11b is formed between the two limiting blocks 113 and the second boss 112. The two limiting plates 81 of the cover plate 80 extend downward from the two sides of the cover plate 80, and the two limiting plates 81 are respectively arranged in the two limiting grooves 11b, and the limiting plate 81 slides relative to the limiting groove 11b. In the present application, the cover plate 80 adopts a concave cladding structure, which can significantly enhance the strength of the cover plate 80, and on the other hand, it can protect the linear motor, effectively prevent foreign matter from falling into the module, and enhance the reliability and stability of the system. For example, the cover plate 80 can cover the magnetic track 30, the part of the base 20 located on both sides of the magnetic track 30 and the part of the sliding assembly 10, so as to effectively protect the linear motor. Exemplarily, the cover plate 80 and the limiting plates 81 on both sides are arranged around the cooling fins 114 to avoid contact between the cooling fins 114 and the outside, thereby protecting the cooling fins 114.

[0069] As shown in FIG. 3, in the embodiment of the present application, the inner side of the end cover 70 is further provided with a bump rubber pad 71. After the sliding assembly 10 slides to the two ends of the base 20 in the front and back direction, the bump rubber pad 71 can abut against the sliding assembly 10 to avoid the sliding assembly 10 from colliding with the end cover 70, so as to effectively protect the sliding assembly 10.

[0070] As shown in FIG. 2 and FIG. 3, in the embodiment of the present application, the side wall of the sliding assembly 10 is further provided with a photoelectric sensing sheet 91, for example, the photoelectric sensing sheet 91 is arranged on one side of the sliding platform 11, and the side wall of the base 20 is provided with a photoelectric sensor 92 matched with the photoelectric sensing sheet 91, the photoelectric sensing sheet 91 corresponds to the position of the photoelectric sensor 92 to provide position feedback. In the process of sliding the sliding assembly 10 relative to the base 20, the photoelectric sensing sheet 91 will pass through the sensing groove of the photoelectric sensor 92, and the photoelectric sensor 92 will sense the position of the sliding assembly 10 and feed back to the control end, and the control end can control the sliding assembly 10 according to the position information of the sliding assembly 10. Exemplarily, the photoelectric sensor 92 is arranged on both sides of the base 20 in the front and back direction to feed back the position information when the sliding assembly 10 slides to the two ends of the base 20 in the front and back direction. In this way, the sliding position of the sliding assembly 10 can be limited, for example, after sliding to the two ends of the base 20 in the front and back direction, the control end can control the mover 12 to stop the sliding assembly 10 from continuing to slide, thereby avoiding the sliding assembly 10 from colliding with the end cover 70, so as to effectively protect the sliding assembly 10.

[0071] As shown in FIG. 3, in the embodiment of the present application, a linear encoder 93 is further arranged on the side wall of the sliding assembly 10, for example, the linear encoder 93 is arranged on the other side of the sliding table plate 11, and the side wall of the base 20 is provided with a grating ruler 40 matched with the linear encoder 30 to provide position feedback for the linear motion of the sliding assembly 10. The position information can be fed back to the control end, so that the control end can accurately know the current position of the sliding assembly 10, so as to accurately control the position of the sliding assembly 10 through the control mover 12, thereby realizing precision operation.

[0072] In the embodiment of the present application, a plurality of sliding assemblies 10 can be correspondingly arranged on the same base, that is, the linear motor can simultaneously support the operation of a plurality of sliding assemblies 10 to simultaneously support the operation of a plurality of devices, thereby greatly improving the production efficiency. It should be noted that the sizes of the plurality of sliding assemblies 10 can be different or the same to meet the application requirements of different thrust and size.

[0073] In the embodiment of the present application, the linear motor has the following advantages compared with the prior art:

[0074] (1) Integrated development: the sliding assembly 10 is based on standardized and modular design, multifunctional integrated development, which can cleverly integrate power source, guiding mechanism, lubricating mechanism and heat dissipation structure together to build a compact and efficient system architecture.

[0075] (2) High precision, high stability and low noise: the mover sliding block integrated linear motor has the same performance as the traditional linear motor, and also has the advantages of high precision and high response. Compared with the prior art, the related structure is optimized to solve the problems of electric corrosion caused by magnetic field and noise caused by cavity structure. At the same time, the structural deformation problem of cavity structure under magnetic attraction is improved.

[0076] (3) Interchangeability: the base 20 and the guide rail 50 can be compatible with sliding assemblies 10 of different sizes, lengths and heights to meet the application requirements of different thrust and size.

[0077] (4) Convenience of production and maintenance: the mover is arranged in the accommodating groove 11a, and the sliding table plate 11 and the mover 12 are integrated with the glue pouring technology, which optimizes the production process and saves the complicated glue pouring mold. The external power supply line can be directly connected through the plug-in connector to supply power to the mover 12 of the sliding assembly 10, which reduces the inventory demand of different styles and types of sliding assemblies 10, and makes the production and inventory management more simple and efficient.

[0078] (5) Cost effectiveness: based on the embedded structure of the magnetic rail 30 and the mover 12, the manufacturing cost of the base 20 and the sliding assembly 10 is successfully reduced, the mold investment is reduced, not only the cost performance of the product is improved, but also the cost is reduced.

[0079] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall fall in the protection scope of the present application.

Claims

1. A linear motor with an integrated mover and slider, wherein: include: A sliding assembly, a base, a magnetic rail, a sliding structure, and a guide rail, wherein the magnetic rail is connected to the base, and the sliding assembly is provided with a mover, which is arranged opposite to the magnetic rail; The base is provided with a first surface facing the sliding component, the base is provided with a groove opening on the first surface, the magnetic rail is filled in the groove, and the magnetic rail is provided with a second surface facing the sliding component, and the second surface is flush with the first surface; the guide rail is provided on the outer side wall of the base, the guide rail is located on the side of the first surface away from the sliding component, the sliding structure is provided on the sliding component, and the sliding structure is slidably connected to the guide rail so that the sliding component slides relative to the base.

2. A linear motor with a movable member and a slider as claimed in claim 1, wherein: The sliding assembly includes the mover and the sliding platform, and the mover and the sliding platform are integrally formed by glue casting.

3. The linear motor with integrated mover and slider according to claim 1, wherein: The magnetic rail is fixedly connected to the base.

4. The linear motor with integrated mover and slider according to claim 1, wherein: The outer side wall of the base is provided with a groove, and the guide rail is embedded in the groove.

5. The linear motor with integrated mover and slider according to claim 1, wherein: The sliding assembly is respectively provided with a first boss on both sides facing the base, and a mounting groove is provided in the first boss. The mounting grooves on both sides are embedded with the sliding structure, and the outer walls on both sides of the base are provided with the guide rails, and the two sliding structures and the two guide rails correspond one to one.

6. The linear motor with integrated mover and slider according to claim 1, wherein: The sliding structure includes a returner, the returner is provided with a plurality of rolling balls, the guide rail is provided with a sliding groove, and the plurality of balls are rollingly connected in the sliding groove.

7. The mover-slider integrated linear motor according to claim 5, wherein: An oiling cup communicated with the mounting groove is provided on the side wall of the sliding assembly so as to lubricate the sliding between the sliding structure and the guide rail.

8. The linear motor with integrated mover and slider according to claim 1, wherein: The side wall of the sliding assembly is further provided with a connector for connecting a power line, and the connector is connected to the mover.

9. The linear motor with integrated mover and slider according to claim 1, wherein: The sliding assembly includes the mover and a sliding platform. A receiving groove is provided on a side of the sliding platform facing the base, and the mover is located in the receiving groove.

10. The mover-slider integrated linear motor according to claim 9, wherein: The side wall of the sliding platform located on the peripheral side of the accommodating groove is provided with heat dissipation fins, and / or the sliding platform is provided with heat dissipation holes in the peripheral side of the accommodating groove.

11. The linear motor with integrated mover and slider according to claim 1, wherein: It also includes two end covers and a cover plate. The end covers are provided at the front and rear ends of the base. The end covers are fixedly connected to the base. A cover plate is connected between the two end covers. A sliding cavity is formed between the cover plate and the base. The sliding component is slidably arranged in the sliding cavity.

12. The mover-slider integrated linear motor according to claim 11, wherein: The sliding assembly is provided with a second boss and two limit platforms away from the base, the two limit platforms are respectively arranged on both sides of the second boss, and a limit groove is formed between the two limit platforms and the second boss, and limit plates extend downward from both sides of the cover plate, and the two limit plates are respectively placed in the two limit grooves, and the limit plates slide relative to the limit grooves.

13. The mover-slider integrated linear motor according to claim 11, wherein: An anti-collision rubber pad is also provided on the inner side of the end cover.

14. The linear motor with integrated mover and slider according to claim 1, wherein: A photoelectric sensing sheet is further provided on the side wall of the sliding component, and a photoelectric sensor cooperating with the photoelectric sensing sheet is provided on the side wall of the base, and the photoelectric sensing sheet corresponds to the position of the photoelectric sensor.

15. The mover-slider integrated linear motor according to claim 1, wherein: A linear encoder is also provided on the side wall of the sliding assembly, and a scale matching the linear encoder is provided on the side wall of the base.

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