A linear motor with integrated moving element and slider

Abstract

The present application belongs to the field of linear motors, and discloses a linear motor with a movable slider integrated therein, including: 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 movable member, and the movable member and the magnetic rail are arranged opposite to each other. The base is provided with a first surface facing the sliding assembly, and the base is provided with a groove opening on the first surface, and the magnetic rail is filled in the groove, and 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 provided on the outer side wall of the base, and the guide rail is located on the side of the first surface away from the sliding assembly, and the sliding structure is provided on the sliding assembly, and the sliding structure is slidably connected to the guide rail, so that the sliding assembly slides relative to the base. The linear motor with a movable slider integrated therein of the present application can significantly reduce the deformation of the base caused by the magnetic attraction force, thereby ensuring the accuracy and stability of the operation of the linear motor.

Description

Technical Field

[0001] The present application belongs to the field of linear motor modules, and in particular relates to a linear motor with a mover and a slider integrated therein. Background Art

[0002] The embedded guide rail linear motor module is a transmission device that integrates the guide rail into the base of the linear motor module. It combines the characteristics of traditional linear motors and lead screw modules. The working principle is the same as that of general linear motors, and both use electromagnetic force to drive the mover to perform linear motion on the guide rail.

[0003] In the existing embedded guide rail linear motor module, the base can accommodate the motor's mover through the provided cavity to make its structure compact, and the two sides of the motor can achieve 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 of the motor, which in turn affects the accuracy and stability of the module. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present application is to provide a linear motor with an integrated mover and slider, which can reduce the deformation of the base caused by magnetic attraction.

[0005] To achieve the above objectives, the technical solution of this application is as follows:

[0006] The present application provides a linear motor with a movable member and a slider integrated therein, comprising: a sliding assembly, a base, a magnetic rail, a sliding structure and a guide rail, wherein the magnetic rail is connected to the base, the sliding assembly is provided with a movable member, and the movable member is arranged opposite to the magnetic rail;

[0007] 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.

[0008] In the mover-slider integrated linear motor of the present application, the sliding assembly includes the mover and a sliding table, and the mover and the sliding table are integrally formed by glue injection.

[0009] In the mover-slider integrated linear motor of the present application, the magnetic rail is fixedly connected to the base.

[0010] In 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.

[0011] In the integrated linear motor with a mover and a slider of the present application, the sliding component 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.

[0012] In the mover-slider integrated linear motor of the present application, the sliding structure includes a returner, the returner is provided with a plurality of rollable balls, the guide rail is provided with a slide groove, and the plurality of balls are rollingly connected in the slide groove.

[0013] In the mover-slider integrated linear motor of the present application, an oil filling cup connected to the mounting groove is provided on the side wall of the sliding component to lubricate the sliding between the sliding structure and the guide rail.

[0014] In the mover-slider integrated linear motor of the present application, the side wall of the sliding component is also provided with a connector for connecting a power line, and the connector is connected to the mover.

[0015] In the mover-slider integrated linear motor of the present application, the sliding assembly includes the mover and a sliding table, a side of the sliding table facing the base is provided with a receiving groove, and the mover is located in the receiving groove.

[0016] In the mover-slider integrated linear motor of the present application, a heat sink is provided on the side wall of the sliding table located on the peripheral side of the accommodating groove, and / or a heat dissipation hole is provided inside the sliding table located on the peripheral side of the accommodating groove.

[0017] The mover-slider integrated linear motor of the present application 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, and the sliding component is slidably arranged in the sliding cavity.

[0018] In the integrated linear motor with a mover and a slider of the present application, the sliding component is provided with a second boss and two limit platforms away from the base, the two limit platforms are arranged on both sides of the second boss, and a limit groove is formed between the two limit platforms and the second boss. 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.

[0019] In the mover-slider integrated linear motor of the present application, an anti-collision rubber pad is also provided on the inner side of the end cover.

[0020] In the mover-slider integrated linear motor of the present application, a photoelectric sensing sheet is further provided on the side wall of the sliding component, 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.

[0021] In the mover-slider integrated linear motor of the present application, a linear encoder is further provided on the side wall of the sliding component, and a scale matching the linear encoder is provided on the side wall of the base.

[0022] In the integrated linear motor of the movable slider of the present application, the cavity structure of the base of the traditional linear motor module is optimized, and the first surface of the base is flush with the second surface of the magnetic track, forming a non-cavity overall power structure. In this way, the side walls of the base on both sides of the groove are shortened, and 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, it will be difficult to deform due to the shortened force arm. In addition, since the magnetic track is filled in the groove, the magnetic track will be in direct contact with the side walls of the base on both sides of the groove without a 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 track and the base as a whole can support the base on both sides of the groove to prevent the base from deforming on both sides of the groove. Therefore, the integrated linear motor of the movable slider of the present application can significantly reduce the deformation of the base caused by the magnetic attraction, thereby ensuring the accuracy and stability of the operation of the linear motor. In actual use, it can ensure the accurate and stable operation of the equipment without causing equipment failure, thereby ensuring production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the structure of an embedded guide rail linear motor module in the prior art;

[0025] Figure 2 It is a structural schematic diagram of a linear motor with a mover and a slider integrated in an embodiment of the present application;

[0026] Figure 3 is an exploded view of a linear motor with a movable slider integrated therein according to an embodiment of the present application;

[0027] Figure 4is an exploded diagram of a mover of a linear motor with a mover and a slider integrated therein according to an embodiment of the present application;

[0028] Figure 5 It is a structural schematic diagram of a base of a linear motor with a mover and a slider integrated therein according to an embodiment of the present application;

[0029] Figure 6 It is a cross-sectional view of the mover-slider integrated linear motor according to an embodiment of the present application.

[0030] Figure Number:

[0031] 10: Sliding component;

[0032] 11: sliding platform; 11a: receiving groove; 11b: limiting groove; 111: first boss; 111a: mounting groove; 1111: mounting member; 112: second boss; 113: limiting platform; 114: heat sink; 115: heat dissipation hole; 116: third surface;

[0033] 12: mover; 121: raised portion; 122: fourth surface;

[0034] 13: Oil filling cup;

[0035] 14: connector;

[0036] 20: base; 20a: groove; 20b: groove; 21: first surface;

[0037] 30: magnetic track; 31: second surface;

[0038] 50: guide rail; 50a: slideway;

[0039] 60: sliding structure; 61: return device;

[0040] 70: end cover; 71: anti-collision rubber pad;

[0041] 80: cover plate; 81: limit plate;

[0042] 91: Photoelectric sensing sheet; 92: Photoelectric sensor; 93: Linear encoder; 94: Scale. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0045] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or may be indirectly connected to the other element through an intermediate element.

[0046] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] like Figure 1 As shown, in the conventional embedded guide rail linear motor module, the base has a concave cavity, the mover and stator of the motor are both placed in the cavity, and the slide connected to the mover is slidably connected to the steel rail on the outer wall of the cavity of the base. When the embedded guide rail linear motor module is in operation, the mover and the stator will generate a magnetic field. Under the action between the mover and the stator, the slide will generate pressure toward the base, and this pressure will then act on the steel rail, and generate a component force toward the middle of the base and a component force toward 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 longer, and since there is a gap between the mover and the cavity, when the pressure applied by the steel rail toward the middle of the base is applied, it is very easy for the side walls of the base on both sides of the cavity to deform. After the deformation occurs, the structure of the cavity itself changes, causing the accuracy of the linear motion of the module to deteriorate, and the stability of the module also deteriorates. It is important to know that in actual use, this instability may lead to inaccurate equipment operation and may even cause equipment failure, thus affecting production efficiency.

[0048] In addition, the cavity space of the traditional embedded module needs to accommodate the mover and stator, and there must be a gap between the mover and the cavity space. Therefore, the cavity space is larger, resulting in a larger operating gap in the traditional embedded module. The larger the gap, the greater the noise generated. This noise not only affects the normal operation of the equipment, but also destroys the quietness of the use environment to a certain extent, bringing unnecessary interference to the use environment.

[0049] Furthermore, since the sliding structure of the slide is close to the mover, a magnetic field will be generated between the mover and the stator during the operation of the embedded guide rail linear motor module. The ball bearings on the rails will cut the magnetic lines of force during operation, causing electrical corrosion between the rails and the balls, which will in turn affect the accuracy and stability of the linear motor module's movement.

[0050] To this end, an embodiment of the present application provides a linear motor with an integrated mover and slider, which can significantly reduce the deformation of the base caused by the electromagnetic suction of the guide rail, thereby ensuring the accuracy and stability of the operation of the linear motor.

[0051] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0052] To achieve the above objectives, the technical solution of this application is as follows:

[0053] like Figure 2 and Figure 6 As shown, this embodiment provides a linear motor with a movable member and a slider integrated therein, comprising: a sliding assembly 10, a base 20, a magnetic rail 30, a sliding structure 60 and a guide rail 50, wherein the magnetic rail 30 is connected to the base 20, and the sliding assembly 10 is provided with a movable member 12, and the movable member 12 is arranged opposite to the magnetic rail 30. The base 20 is provided with a first surface 21 facing the sliding assembly 10, the base 20 is provided with a groove 20a opening on the first surface 21, the magnetic rail 30 is filled in the groove 20a, the magnetic rail 30 is provided with a second surface 31 facing the sliding assembly 10, and the second surface 31 is flush with the first surface 21; the guide rail 50 is provided on the outer side wall of the base 20, 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 provided on the sliding assembly 10, and the sliding structure 60 is slidably connected to the guide rail 50, so that the sliding assembly 10 slides relative to the base 20.

[0054] It should be noted that when the linear motor is operating, a magnetic field is generated between the mover 12 and the magnetic rail 30. The mover 12 will be subjected to the magnetic attraction of the magnetic rail 30, which will cause the sliding assembly 10 as a whole to be subjected to attraction toward the base. The sliding assembly 10 will generate pressure toward the base 20 through the sliding structure 60. For example, pressure will be applied to the guide rail 50 through the balls in the sliding structure 60. This pressure has a component force toward the middle of the base 20 and a component force toward the bottom of the base 20. The outer wall of the base 20 will then be subjected to inward pressure.

[0055] In the embodiment of the present application, the cavity structure of the base of the conventional linear motor module is optimized, and the first surface 21 of the base 20 is flush with the second surface 31 of the magnetic rail 30, forming a non-cavity integral power structure. In this way, the side walls of the base 20 on both sides of 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 shortened force arm. In addition, since the magnetic rail 30 is filled 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 a gap. 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 from deforming on both sides of the groove 20a. Therefore, the linear motor with integrated slider 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 without causing equipment failure, thereby ensuring production efficiency.

[0056] Furthermore, it should be noted that the guide rail 50 is usually made of a steel rail with sufficient strength to ensure that the sliding assembly 10 can be stably supported to slide relative to the base 20. When the linear motor is operating, a magnetic field is generated between the mover 12 and the magnetic rail 30, which generates a magnetic attraction force on the sliding structure 60. For example, a magnetic attraction force is generated on the ball bearings therein, which in turn affects the smoothness of the movement of the ball bearings in the guide rail 50. In this 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, and the mover 12 and the magnetic rail 30 reduce the magnetic attraction force on the sliding structure 60, further reducing the effect of the magnetic attraction force on the smoothness of the movement between the sliding structure 60 and the guide rail 50.

[0057] In addition, in the embodiment of the present application, since the magnetic rail 30 is filled 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 there is no additional space in the groove 20a, thereby reducing the running gap of the entire linear motor. On the one hand, the structure of the linear motor is more compact, and on the other hand, the noise generated by the linear motor during operation is reduced, thereby ensuring the normal operation of the linear motor and making the use environment quieter and more comfortable.

[0058] Furthermore, in the embodiment of the present application, when the linear motor is operating, a magnetic field will be generated between the mover 12 and the magnetic rail 30. Since the sliding structure 60 is slidably connected to the guide rail 50, and the guide rail 50 is located on the outer wall of the base 20, the guide rail 50 and the sliding structure 60 will be located on the side away from the mover 12 and the magnetic rail 30. The sliding structure 60 and the guide rail 50 are therefore away from the magnetic field, so that the magnetic field cutting effect of the sliding structure 60 and the guide rail 50 is weakened. Therefore, the electrical corrosion of the sliding structure 60 and the guide rail 50 can be weakened, so as to ensure that the sliding structure 60 is stably and reliably slidably connected to the guide rail 50, thereby ensuring the accuracy and stability of the operation of the linear motor.

[0059] like Figure 5 As shown, in the embodiment of the present application, part of the guide rail 50 is at least located on the side of the bottom of the groove 20a facing the first surface 21. In this way, the guide rail 50 will not be too far away from the sliding assembly 10, and the sliding structure 60 will not be too deep into the base 20, making the linear motor more compact and not occupying too much volume.

[0060] like Figure 4 As shown, in the embodiment of the present application, the sliding assembly 10 includes a mover 12 and a sliding table 11, and the mover 12 and the sliding table 11 are integrally cast. This eliminates the need for cumbersome casting molds, optimizes the production process, and reduces costs. Such a structure enables the sliding table 11 and the mover 12 to be combined into a whole, and there will be no relative displacement or error between the two, which can ensure the accuracy and stability of the linear motor during operation, thereby ensuring the accurate and stable operation of the equipment connected to the sliding table 11.

[0061] like Figure 3 and Figure 5 As shown, in the embodiment of the present application, the magnetic track 30 is fixedly connected to the base 20. Such a structure allows the magnetic track 30 and the base 20 to be integrated into a whole, and there will be no relative displacement or error between the two, so that the sliding assembly 10 slidably connected thereto can operate accurately and stably, ensuring the accuracy and stability of the linear motor during operation. Exemplarily, the magnetic track 30 and the base 20 can be fixedly connected by screws or adhesives. Of course, in other embodiments, the magnetic track 30 and the base 20 can also be made of one-piece glue pouring to optimize the production process and reduce costs.

[0062] like Figure 3 and Figure 5 As shown, in the embodiment of the present application, the outer 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, it can be ensured that the guide rail 50 is firmly installed on the outer wall of the base 20, thereby ensuring the stability and reliability of the sliding of the sliding assembly 10. In addition, the embedded guide rail 50 can not only avoid occupying the extra volume of the linear motor, but also protect the guide rail 50 through the recessed structure of the base 20, thereby improving the stability and reliability of the linear motor. Of course, in other embodiments, the guide rail 50 can also be directly fixed to the surface of the outer wall of the base 20.

[0063] like Figure 4 and Figure 6 As shown, in the embodiment of the present application, the sliding assembly 10 is provided with first bosses 111 on both sides facing the base 20, and a mounting groove 111a is provided in the first boss 111. The mounting grooves 111a on both sides are embedded with sliding structures 60. The outer side walls on both sides of the base 20 are provided with guide rails 50, and the two sliding structures 60 correspond to the two guide rails 50 one by one. It should be noted that each sliding structure 60 is slidably connected to the corresponding guide rail 50. Since the guide rails 50 are located on the outer side walls on both sides of the base 20, after the two sliding structures 60 are slidably connected to the guide rails 50 on both sides, the bosses on both sides of the sliding assembly 10 will be clamped on both sides of the base 20, so as to ensure that the sliding assembly 10 can slide stably relative to the base 20. In addition, the embedded sliding structure 60 can not only avoid occupying the extra 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. Exemplarily, first bosses 111 are respectively provided on both sides of the sliding table 11 , and the mover 12 is located between the first bosses 11 on both sides.

[0064] like Figure 4 and Figure 6 As shown, in the embodiment of the present application, the sliding structure 60 includes a returner 61, the returner 61 is provided with a plurality of rolling balls, the guide rail 50 is provided with a chute 50a, and the plurality of balls are rollingly connected in the chute 50a. It should be noted that the returner 61 has a circular closed return channel, and the plurality of balls are arranged in the return channel, and the portion of the return channel facing the chute 50a is connected to the chute 50a, and the plurality of balls will roll along the chute 50a while rolling in the return channel. In this way, the friction force of sliding between the sliding structure 60 and the guide rail 50 can be greatly reduced, which is conducive to the sliding of the sliding assembly 10 relative to the base 20, thereby improving the accuracy and stability of the operation of the linear motor. Exemplarily, the diameter of the ball is adapted to the diameter of the rolling space enclosed between the return channel and the chute 50a, so as to further ensure the accuracy and stability of the operation of the linear motor.

[0065] like Figure 4 and Figure 6 As shown, in the embodiment of the present application, each mounting groove 111a is open toward the middle of the sliding assembly 10 and the side away from the sliding assembly 10, and a mounting piece 1111 is protrudingly provided on the groove wall of the mounting groove 111a away from the sliding assembly 10, and a fixing groove is provided in the middle of the returner 61. When the returner 61 is installed in the mounting groove 111a, the returner 61 can be placed into the mounting groove 111a from the opening of the side of the mounting groove 111a away from the sliding assembly 10, and the mounting piece 1111 is placed in the fixing groove, and the returner 61 can be firmly installed in the mounting groove 111a by locking and connecting the ends of the pressing plate and the mounting piece 1111. For example, the pressing plate and the mounting piece 1111 can be locked and connected by screws. For example, each mounting groove 111a is provided with a plurality of mounting members 1111 arranged at intervals along the travel direction of the sliding assembly 10, which are used to fix and install a plurality of returners 61 arranged in parallel, 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 application requirements of different thrusts and sizes. For example, each mounting groove 111a is provided with two fixing members to install two returners 61 arranged in parallel.

[0066] like Figure 4 As shown, in the embodiment of the present application, an oil filling cup 13 connected to the mounting groove 111a is provided on the side wall of the sliding assembly 10 to lubricate the sliding between the sliding structure 60 and the guide rail 50. The oil filling cup 13 can be used to inject lubricating grease between the sliding structure 60 and the guide rail 50 to achieve 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 this embodiment, an oil hole connected to the mounting groove 111a is provided on the outside of the sliding assembly 10, and the oil filling cup 13 is installed in the oil hole from the outside of the sliding assembly 10 to inject oil between the sliding structure 60 and the guide rail 50. Exemplarily, the oil hole is connected to the groove wall of the mounting groove 111a away from the sliding assembly 10 and toward the return channel of the returner 61. The lubricating grease can flow along the oil hole to the return channel, and under the action of the rolling of the ball, the lubricating grease is driven to between the sliding structure 60 and the guide rail 50. For example, the ball 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 table 11 is provided with an oil filling cup 13 connected to the mounting groove 111a so as not to affect the operation of the mover 12.

[0067] like Figure 5 and Figure 6As shown, in the embodiment of the present application, the middle protrusion of the base 20 forms a cavity plate, the first surface 21 and the groove 20a are located on the side of the cavity plate facing the sliding component 10, the guide rail 50 is arranged on the outer wall of the cavity plate adjacent to the first surface 21, the base 20 is located on both sides of the cavity plate with sliding grooves, and the first protrusions 111 on both sides of the sliding component 10 are placed in the sliding grooves on both sides. In this way, the linear motor as a whole is further made more compact and does not occupy too much volume. In addition, the running clearance of the entire linear motor is further reduced, and the noise generated by the linear motor during operation is reduced, ensuring the normal operation of the linear motor and making the use environment quieter and more comfortable.

[0068] like Figure 4 As shown, in the embodiment of the present application, the side wall of the sliding assembly 10 is also provided with a connector 14 for connecting a power cord, and the connector 14 is connected to the mover 12. It should be noted that a coil is provided inside the mover 12, and after being energized, a magnetic field can be generated, and the magnetic field can push the mover 12 to perform linear motion relative to the magnetic track 30, thereby realizing the sliding of the sliding assembly 10 relative to the base 20. In this embodiment, the connector 14 can be connected to 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 to and disconnected from the power supply by plugging in and unplugging the power connector, which is more convenient to use.

[0069] It should be noted that, for the traditional linear motor module, in order to be able to supply power to the mover, it is generally necessary to drill a hole on the slide connected to the mover, and the output wire of the mover passes through the hole on the slide to connect to the external power supply. Therefore, if the length of the output wire of the mover is different, it is necessary to make an additional mover of the corresponding length, which is not conducive to the preparation and production of motors of various lengths. In addition, since the output wire of the mover extends out of the sliding table, it is also inconvenient to replace and maintain the slide and the mover, and it is easy to damage the slide or the motor. In the embodiment of the present application, the connector 14 is directly set on the side wall of the sliding component 10, and power supply can be achieved by docking with the power connector. There is no need to consider the length and setting method of the output wire of the mover 12, so that the production of the sliding component 10 is standardized and single, which is conducive to the preparation and production of the sliding component 10, and it is also convenient when replacing and maintaining the sliding component 10, and it will not be affected by the output 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.

[0070] Exemplarily, in the sliding assembly 10, the mover 12 and the sliding table 11 are integrally formed, and the wire connecting the connector 14 and the mover 12 passes through the sliding table 11 to be connected to the mover 12; of course, in some other examples, the sliding table 11 is provided with a first electrical contact, and the mover 12 is provided with a second electrical contact, and the first electrical contact is connected to the connector 13. After the mover 12 is connected to the sliding table 11, the second electrical contact is connected to the first electrical contact, and the mover 12 is connected to the connector 13. In this way, the sliding table 11 and the mover 12 can be easily replaced and maintained separately.

[0071] like Figure 4 and Figure 6 As shown, in the embodiment of the present application, a receiving groove 11a is provided on the side of the sliding table 11 facing the base 20, and the mover 12 is located in the receiving groove 11a. Since the magnetic rail 30 is filled in the groove 20a, and the first surface 21 and the second surface 31 are flush, placing the mover 12 in the receiving groove 11a can greatly reduce the gap between the sliding table 11 and the base 20, thereby making the structure of the linear motor more compact, thereby reducing the noise generated by the linear motor during operation, ensuring the normal operation of the linear motor, and making the use environment quieter and more comfortable. In addition, when the sliding table 11 and the mover 12 are integrally molded by glue pouring, since the mover 12 is embedded in the receiving groove 11a, there is no need for cumbersome molds to separately mold the sliding table 11 and the mover 12, which optimizes the production process and reduces costs.

[0072] like Figure 4 and Figure 6 As shown, in the embodiment of the present application, the sliding table 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 rail 30 are relative and act on each other, 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 table 11 and the base 20 can be minimized to the maximum extent, making the structure of the linear motor more compact, thereby reducing the noise generated by the linear motor during operation, ensuring the normal operation of the linear motor, and making the use environment quieter and more comfortable.

[0073] In this embodiment, the receiving groove 11a has a stepped groove at the bottom of the receiving groove 11a, and the mover 12 has a protrusion 121, which is placed in the stepped groove and filled in the stepped groove, so that the mover 12 can be further firmly embedded in the receiving groove 11a.

[0074] like Figure 4 and Figure 6As shown, in the embodiment of the present application, the sliding table 11 is provided with a heat sink 14 on the side wall of the peripheral side of the receiving groove 11a. Since the mover 12 is placed in the receiving groove 11a, the heat generated by the mover 12 can be transferred to the heat sink 114 along the groove wall of the receiving groove 11a, and the heat sink 114 can effectively increase the heat dissipation area of ​​the sliding assembly 10, improve the heat dissipation efficiency of the sliding assembly 10, and ensure the continuous and stable operation of the linear motor. Exemplarily, a second boss 112 corresponding to the receiving groove 11a is provided on the side of the sliding table 11 away from the opening of the receiving groove 11a, and the heat sink 114 is arranged on the side wall of the peripheral side of the second boss 112. Specifically, the heat sink 114 is located on both sides of the receiving groove 11a and both sides of the stepped groove, and extends to both ends of the sliding table 11 along the travel direction of the sliding table 11, so as to fully dissipate heat for the sliding assembly 10.

[0075] like Figure 4 and Figure 6 As shown, in the embodiment of the present application, the sliding table 11 is provided with heat dissipation holes 115 on the circumferential side of the receiving groove 11a. The heat dissipation holes 115 can be connected to the air pipe and the water pipe, and support both air cooling and water cooling to provide a more efficient heat dissipation method for the sliding component 10. In this way, the temperature rise of the sliding component 10 can be effectively suppressed, the stability and reliability of the linear motor when running under high load can be ensured, and a safer and more reliable power solution can be provided to the user. Exemplarily, the heat dissipation holes 115 are located on both sides of the receiving groove 11a, and extend to both ends of the sliding table 11 along the travel direction of the sliding table 11, so as to be able to fully dissipate the heat of the sliding component 10.

[0076] It should be noted that the heat sink 114 and the heat dissipation hole 115 can be provided one or the other as required, or they can be provided at the same time, so as to achieve better heat dissipation for the sliding assembly 10. In addition, since the mover 12 is the main heat generating device, the heat sink 114 and / or the heat dissipation hole 115 are provided on the side of the mover 12, so as to achieve sufficient heat dissipation for the mover 12.

[0077] like Figure 3 , Figure 5 and Figure 6As shown, in the embodiment of the present application, the linear motor further includes two end covers 70 and a cover plate 80. The end covers 70 are provided at both the front and rear ends of the base 20. The end covers 70 are fixedly connected to the base 20. A cover plate 80 is also connected between the two end covers 70. A sliding cavity is formed between the cover plate 80 and the base 20, and the sliding assembly 10 is slidably arranged in the sliding cavity. The sliding position of the sliding assembly 10 in the direction of travel can be limited by the provided end covers 70, ensuring that the sliding assembly 10 slides stably on the base 20 and is not easy to separate from the base 20 in the direction of travel. The provided cover plate 80 can protect the base 20, the magnetic rail 30, and the sliding assembly 10 on the one hand, and on the other hand, it can also prevent the sliding assembly 10 from separating from the base 20 in the longitudinal direction, ensuring that the sliding assembly 10 slides stably on the base 20.

[0078] like Figure 3 and Figure 6 As shown, in the embodiment of the present application, the sliding assembly 10 is provided with a second boss 112 and two limit platforms 113 away from the base 20, the two limit platforms 113 are respectively arranged on both sides of the second boss 112, and a limit groove 11b is formed between the two limit platforms 113 and the second boss 112, and limit plates 81 extend downward from both sides of the cover plate 80, and the two limit plates 81 are respectively placed in the two limit grooves 11b, and the limit plates 81 slide relative to the limit grooves 11b. In the present application, the cover plate 80 adopts a concave covering structure, which can significantly enhance the strength of the cover plate 80 on the one hand, and can protect the linear motor on the other hand, 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 achieve effective protection of the linear motor. Exemplarily, the cover plate 80 and the limiting plates 81 on both sides are disposed around the heat sink 114 to prevent the heat sink 114 from contacting the outside, thereby also protecting the heat sink 114.

[0079] like Figure 3 As shown, in the embodiment of the present application, an anti-collision rubber pad 71 is also provided on the inner side of the end cover 70. After the sliding assembly 10 slides to the two ends of the base 20 in the front-back direction, the anti-collision rubber pad 71 can resist the sliding assembly 10 to prevent the sliding assembly 10 from hitting the end cover 70, so as to effectively protect the sliding assembly 10.

[0080] like Figure 2 and Figure 3As shown, in the embodiment of the present application, a photoelectric sensing sheet 91 is further provided on the side wall of the sliding component 10. For example, the photoelectric sensing sheet 91 is provided on one side of the sliding platen 11, and a photoelectric sensor 92 that cooperates with the photoelectric sensing sheet 91 is provided on the side wall of the base 20. The photoelectric sensing sheet 91 and the photoelectric sensor 92 correspond in position to provide position feedback. When the sliding component 10 slides relative to the base 20, the photoelectric sensing sheet 91 will pass through the sensing slot of the photoelectric sensor 92, and the photoelectric sensor 92 will then sense the position of the sliding component 10 and feed it back to the control end, and the control end can control the sliding component 10 according to the position information of the sliding component 10. Exemplarily, the photoelectric sensors 92 are arranged on both sides of the front-to-back direction of the base 20 to feedback the position information of the sliding component 10 when it slides to the front and rear ends of the base 20. In this way, the sliding position of the sliding component 10 can be limited. For example, after sliding to the two ends of the front-to-back direction of the base 20, the control end can control the mover 12, and then control the sliding component 10 to stop sliding, so as to avoid the sliding component 10 colliding with the end cover 70, so as to effectively protect the sliding component 10.

[0081] like Figure 3 As shown, in the embodiment of the present application, a linear encoder 93 is further provided on the side wall of the sliding assembly 10. For example, the linear encoder 93 is provided on the other side of the sliding table 11, and a scale 40 matching the linear encoder 30 is provided on the side wall of the base 20 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 be able to accurately control the position of the sliding assembly 10 by controlling the mover 12, thereby achieving precision operation.

[0082] In the embodiment of the present application, a plurality of sliding assemblies 10 can be provided corresponding to the same base, that is, the linear motor can support the operation of a plurality of sliding assemblies 10 at the same time, so as to support the operation of a plurality of devices at the same time, 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, so as to meet the application requirements of different thrusts and sizes.

[0083] In the embodiment of the present application, the linear motor has the following advantages compared with the prior art:

[0084] (1) Integrated development: The sliding assembly 10 is based on standardized and modular design and multifunctional integrated development, which can cleverly integrate the power source, guide mechanism, lubrication mechanism and heat dissipation structure to build a compact and efficient system architecture.

[0085] (2) High precision, high stability, and low noise: The performance of the integrated linear motor with a movable slider is the same as that of a traditional linear motor. It also has the advantages of high precision and high response. Compared with the existing technology, it optimizes the relevant structure and solves the problems of electrical corrosion caused by the magnetic field and noise generated by the cavity structure. At the same time, it improves the structural deformation problem caused by the cavity structure under magnetic attraction.

[0086] (3) Interchangeability: The base 20 and the guide rail 50 are compatible with sliding assemblies 10 of different lengths and heights to meet application requirements of different thrusts and sizes.

[0087] (4) Convenience of production and maintenance: The present application places the mover in the receiving groove 11a and adopts the integrated glue pouring technology of the sliding table 11 and the mover 12, which optimizes the production process and eliminates the cumbersome glue pouring mold; the external power cord can be directly connected by setting a plug-in connector to power the mover 12 of the sliding assembly 10, reducing the inventory requirements of different styles and types of sliding assemblies 10, making production inventory management simpler and more efficient.

[0088] (5) Cost-effectiveness: Based on the embedded structure of the magnetic rail 30 and the mover 12, the present application successfully reduces the manufacturing cost of the base 20 and the sliding assembly 10 and reduces mold investment, which not only improves the cost-effectiveness of the product but also reduces costs.

[0089] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A linear motor with integrated mover and slider, characterized in that: It comprises: 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, and the mover is arranged opposite to the magnetic rail; The outer side wall of the base is provided with a first surface facing the sliding assembly, the base is provided with a groove opening on the first surface, the magnetic track is filled in the groove, the magnetic track is provided with a second surface facing the sliding assembly, 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 assembly, the sliding structure is provided on the sliding assembly, and the sliding structure is slidably connected to the guide rail, so that the sliding assembly slides relative to the base; The sliding structure comprises a returner, the returner is provided with a plurality of rolling balls, the guide rail is provided with a slide groove, and the plurality of balls are rollingly connected in the slide groove.

2. The linear motor with integrated mover and slider according to claim 1, characterized in that: The sliding assembly includes the mover and a sliding table, and the mover and the sliding table are integrally formed by glue injection.

3. The linear motor with integrated mover and slider according to claim 1, characterized in that: The magnetic track is fixedly connected to the base.

4. The linear motor with integrated mover and slider according to claim 1, characterized in that: 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, characterized in that: The sliding assembly is respectively provided with a first boss on both sides facing the base, a mounting groove is provided in the first boss, the mounting grooves on both sides are embedded with the sliding structure, 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 5, characterized in that: An oiling cup communicated with the mounting groove is arranged on the side wall of the sliding assembly so as to lubricate the sliding between the sliding structure and the guide rail.

7. The linear motor with integrated mover and slider according to claim 1, characterized in that: The side wall of the sliding assembly is also provided with a connector for connecting a power line, and the connector is connected to the mover.

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

9. The linear motor with integrated mover and slider according to claim 8, characterized in that: A heat sink is provided on the side wall of the sliding platform located at the peripheral side of the receiving groove, and / or a heat dissipation hole is provided inside the sliding platform located at the peripheral side of the receiving groove.

10. The linear motor with integrated mover and slider according to claim 1, characterized in that: It also includes two end covers and a cover plate. The end covers are arranged 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.

11. The linear motor with integrated mover and slider according to claim 10, characterized in that: 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 limit grooves are formed between the two limit platforms and the second boss. 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.

12. The linear motor with integrated mover and slider according to claim 10, characterized in that: An anti-collision rubber pad is also arranged on the inner side of the end cover.

13. The linear motor with integrated mover and slider according to claim 1, characterized in that: A photoelectric sensing sheet is also arranged on the side wall of the sliding component, a photoelectric sensor matching with the photoelectric sensing sheet is arranged on the side wall of the base, and the photoelectric sensing sheet corresponds to the position of the photoelectric sensor.

14. The linear motor with integrated mover and slider according to claim 1, characterized in that: A linear encoder is also arranged on the side wall of the sliding component, and a scale matching with the linear encoder is arranged on the side wall of the base.

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