An integrated linear motor module

Abstract

The present invention discloses an integrated linear motor module, which relates to the field of linear motor modules, including a linear motor body, a plurality of sliding structures and a base, wherein the linear motor body includes a slider, and the base includes a bottom plate and a side plate, wherein the side plate is fixedly connected to the bottom plate, and the slider is slidably connected to the side plate through a plurality of sliding structures, wherein the plurality of sliding structures are arranged in parallel and the plane formed is parallel to the bottom plate. The linear motor module realizes the sliding connection between the slider and the base through the plurality of sliding structures, while increasing the stress points of the base, thereby increasing the bearing capacity of the linear motor module; the plurality of sliding structures are arranged in parallel so that the height of the overall structure of the linear motor module is relatively low, thereby making it stable and strong in anti-seismic ability.

Description

Technical Field

[0001] The invention belongs to the field of linear motor modules, and in particular relates to an integrated linear motor module. Background Art

[0002] A linear motor is a transmission device that converts electrical energy directly into mechanical energy for linear motion without the need for any intermediate conversion mechanism. In the field of linear motor module platforms, linear motors are mainly equipped with closed-loop grating position feedback and are used in linear motion systems that require high precision, high acceleration, and high rigidity. Therefore, the operating stability and load-bearing capacity have become important indicators for evaluating the overall performance of linear motor modules.

[0003] The existing linear motor module has certain defects in the application process. In order to improve its rigidity and increase its bearing capacity, an auxiliary motor structure is added. However, the general auxiliary motor structure occupies a large space, which makes it difficult to compress the size of the linear motor module and has poor operating stability. In addition, some technicians will add support structures such as support wheels to the linear motor module to increase its bearing capacity. Although the support structure increases the bearing capacity of the linear motor module, it inevitably increases the movement resistance and affects the overall performance of the linear motor module. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide an integrated linear motor module, which has high precision and large load-bearing capacity, good stability and strong earthquake resistance.

[0005] Another object of the present invention is to provide an integrated linear motor module with a simple structure, suitable for batch processing and production, and higher production efficiency.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] The present invention provides an integrated linear motor module, including a linear motor body, a plurality of sliding structures and a base, wherein the linear motor body includes a slider, and the base includes a bottom plate and a side plate, wherein the side plate is fixedly connected to the bottom plate, and the slider is slidably connected to the side plate through a plurality of sliding structures, wherein the plurality of sliding structures are arranged in parallel and the plane formed is parallel to the bottom plate. The linear motor module realizes the sliding connection between the slider and the base through the plurality of sliding structures, while increasing the stress points of the base, thereby increasing the bearing capacity of the linear motor module; the plurality of sliding structures are arranged in parallel so that the height of the overall structure of the linear motor module is relatively low, thereby making it stable and strong in anti-seismic ability.

[0008] Furthermore, the slider includes a main board and sliding feet, the number of sliding feet, the number of side panels, and the number of sliding structures correspond, the sliding feet are fixedly connected to the bottom of the main board and arranged in parallel and spaced apart, the side panels are arranged at intervals, and the sliding structure slidably connects the sliding feet and the side walls of the adjacent side panels. For example, when there are four sliding structures, the number of sliding feet can be two, and the number of side walls can be four; when there are four sliding structures, the number of sliding feet can be four, and the number of side walls is at least two.

[0009] Furthermore, the linear motor module includes four sliding structures, the slider includes a main board and four sliding feet, the four sliding feet are respectively fixedly connected to the bottom of the main board and arranged in parallel to form three compartments, the three compartments are respectively a left compartment, a middle compartment, and a right compartment; the side plate includes a left plate and a right plate, the left plate is placed in the left compartment, and the right plate is placed in the right compartment, and each sliding foot is slidably connected to the side wall of its adjacent side plate through a sliding structure. Such an arrangement improves the rigidity and load-bearing capacity of the linear motor module structure, and is suitable for the requirements of high-rigidity linear motion systems.

[0010] Furthermore, the linear motor body also includes a magnetic track and a linear motor mover. The linear motor mover 14 is placed in the middle cavity. The main board is fixedly connected to the linear motor mover. The magnetic track is installed on the bottom plate and corresponds to the linear electronic mover. A certain air gap is always maintained between the linear electronic mover and the magnetic track without contact, eliminating the contact friction resistance between the linear electronic mover and the magnetic track, improving the sensitivity and follow-up of the linear motor module, and realizing contactless transmission of force. The mechanical friction loss is almost zero, and there are few failures, thereby improving the reliability of the linear motor module.

[0011] Furthermore, each sliding structure includes a rolling body, a slide rail, and a reflow device; grooves are recessed inwardly on both sides of the left plate and the right plate, and each sliding foot is provided with a groove at the corresponding groove position. The slide rail is arranged in the groove and the groove to form a rolling body channel. The reflow device is arranged inside the sliding foot. The reflow device and the rolling body channel form a closed loop, and the rolling body rolls in the closed loop. The slide rail is arranged in the groove to integrate the slide rail with the base, so that the linear motor module has a compact structure and meets the requirements of small size and high precision. The rolling body, the reflow device and the rolling body channel constitute a guide body, which guides the linear motor module to achieve high-precision linear reciprocating motion, and also plays a role in supporting the slider and bearing the load.

[0012] Furthermore, the bottom plate and the side plate are designed as one piece, the main body of the linear motor includes a sliding table, and the sliding table and the slider are designed as one piece. The slider and the sliding table are designed as one piece, so that the slider directly bears the load of the linear motor module, eliminating the intermediate assembly link between the slider and the sliding table; the bottom plate and the side plate are designed as one piece, making the base structure more compact; such a setting eliminates the intermediate installation link and the accumulation of component errors, improves the compactness and rigidity of the linear motor module, and makes the walking mechanism of the linear motor module more accurate.

[0013] Furthermore, the rolling element is composed of a plurality of balls, and the balls on the slide rail in the groove are in two-point contact with the slide rail in the groove, and the force direction of the contact point is at an angle of 45° to the horizontal direction. This arrangement enables the four balls in the cross section to be in eight-point contact with the groove to support the slider, thereby improving the load-bearing capacity, rigidity and stability of the linear motor module in linear motion.

[0014] Furthermore, the slider and the base are symmetrical along their midlines, respectively. This arrangement allows the load on the slider to be evenly borne by the base, thereby improving the load-bearing capacity, rigidity and stability of the linear motor module in linear motion.

[0015] In the present invention, the base adopts a U-shaped profile base as the main body, and the groove is embedded in the inner side of the base by bonding in the form of a blank to form an integrated whole, and then put into a high-precision grinder for grinding. The linear motor module places the precision processing link of the groove after it is integrated with the base, ensuring the final processing accuracy, avoiding deformation and error accumulation in the intermediate links, and allowing the entire groove to achieve micron-level linear accuracy in the base.

[0016] The mover and magnetic track of the linear motor are arranged in a U-shaped cavity, and the internal width of the U-shaped cavity can be changed according to actual needs to adapt to the installation of various linear motors.

[0017] The sliding structure is pre-pressed with the grooves and recesses, so that the linear motor module has higher rigidity and can more effectively balance and withstand loads and impacts in all directions.

[0018] The advantages of the present invention are: compared with the prior art, in the present invention, the linear motor module realizes the sliding connection between the slider and the base through multiple sliding structures while increasing the force points of the base, thereby increasing the bearing capacity of the linear motor module; the multiple sliding structures are arranged in parallel to make the height of the overall structure of the linear motor module lower, thereby making it stable and resistant to shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded view of the present invention.

[0020] Figure 2 It is a cross-sectional view of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] To achieve the above object, the technical solution of the present invention is as follows:

[0023] See also Figure 1-2 As shown, the present invention provides an integrated linear motor module, including a linear motor body 1, a base 2 and four sliding structures 3, the base 2 includes a bottom plate 21 and a side plate 22, the side plate 22 and the bottom plate 21 are designed as a whole, the side plate 22 includes a left plate 221 and a right plate 222, the linear motor body 1 includes a slider 11, a magnetic rail 12, a sliding table 13 and a linear motor mover 14.

[0024] The slider 11 includes a main board 111 and four sliding feet 112. The four sliding feet 112 are respectively fixedly connected to the bottom of the main board 111 and arranged in parallel to form three compartments, which are a left compartment 113, a middle compartment 115, and a right compartment 114. The left side plate 221 is placed in the left compartment 113, and the right side plate 222 is placed in the right compartment 114. Each sliding foot 112 is slidably connected to the side wall of its adjacent side plate 22 through a sliding structure 3. The linear motor module realizes the sliding connection between the slider 11 and the base 2 through four sliding structures 3, while increasing the force points of the base 2, thereby increasing the bearing capacity of the linear motor module.

[0025] The four sliding structures 3 are arranged in parallel and the plane they form is parallel to the bottom plate 21. This arrangement makes the height of the overall structure of the linear motor module relatively low, so that the linear motor module has both large load-bearing capacity and strong stability in linear motion. The slider 11 and the base 2 are symmetrical along their midlines. This arrangement allows the load on the slider 11 to be evenly borne by the base 2, further improving the load-bearing capacity, rigidity and stability of the linear motor module in linear motion.

[0026] The linear motor mover 14 is placed in the middle partition cavity 115, the main board 111 is fixedly connected to the linear motor mover 14, and the magnetic track 12 is installed on the bottom plate 21 and corresponds to the linear electronic mover. A certain air gap is always maintained between the linear electronic mover and the magnetic track 12 without contact, eliminating the contact friction resistance between the linear electronic mover and the magnetic track 12, improving the sensitivity and follow-up of the linear motor module, and realizing contactless transmission of force, with almost zero mechanical friction loss, less failures, and improving the reliability of the linear motor module.

[0027] Each sliding structure 3 includes a rolling body 31, a slide rail 32, and a reflow device 33; grooves 223 are respectively recessed inwardly on both sides of the left plate 221 and the right plate 222, and each sliding foot 112 is respectively provided with a groove 116 at the position corresponding to the groove 223. The slide rail 32 is arranged in the groove 223 and the groove 116 to form a rolling body channel 4. The reflow device 33 is arranged inside the sliding foot 112, and the reflow device 33 and the rolling body channel 4 form a closed loop, and the rolling body 31 rolls in the closed loop. The slide rail 32 is arranged in the groove 223. Such an arrangement integrates the slide rail 32 with the base 2, making the linear motor module compact and meeting the requirements of small size and high precision. The rolling body 31, the reflow device 33 and the rolling body channel 4 constitute a guide body, which guides the linear motor module to achieve high-precision linear reciprocating motion, and also plays a role in supporting the slider 11 and bearing the load.

[0028] The sliding table 13 and the main board 111 are designed in an integrated manner. The main board 111 and the sliding table 13 are designed in an integrated manner, so that the main board 111 directly bears the load of the linear motor module, eliminating the intermediate assembly link between the slider 11 and the sliding table 13, thereby reducing error accumulation and improving the compactness and rigidity of the linear motor module.

[0029] The rolling element 31 is composed of a plurality of balls 311. The balls 311 on the slide rail 32 in the groove 223 are in two-point contact with the slide rail 32 in the groove 223. The force direction of the contact point is at an angle of 45° to the horizontal direction. This arrangement allows the four balls 311 in the cross section to be in eight-point contact with the groove 223 to support the slider 11, thereby improving the load-bearing capacity, rigidity and stability of the linear motor module in linear motion.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated linear motor module, characterized in that: It includes a linear motor body, a plurality of sliding structures and a base, wherein the linear motor body includes a slider, the base includes a bottom plate and a side plate, the side plate is fixedly connected to the bottom plate, the slider is slidably connected to the side plate through a plurality of sliding structures, and the plurality of sliding structures are arranged in parallel and the plane formed by the sliding structures is parallel to the bottom plate; It includes four sliding structures, the slider includes a main board and four sliding feet, the four sliding feet are respectively fixedly connected to the bottom of the main board and arranged in parallel to form three compartments, the three compartments are respectively a left compartment, a middle compartment and a right compartment; the side plate includes a left plate and a right plate, the left plate is placed in the left compartment, and the right plate is placed in the right compartment, each sliding foot is respectively slidably connected to the side wall of the adjacent side plate through a sliding structure; Each sliding structure includes a rolling body, a sliding rail, and a reflow device; grooves are recessed inwardly on both sides of the left plate and the right plate, and each sliding foot is provided with a groove at the corresponding groove position. The sliding rail is arranged in the groove and the groove to form a rolling body channel. The reflow device is arranged inside the sliding foot, and the reflow device and the rolling body channel form a closed loop, and the rolling body rolls in the closed loop.

2. The integrated linear motor module according to claim 1, characterized in that: The linear motor body also includes a magnetic track and a linear motor mover. The linear motor mover is placed in the middle partition cavity. The main board is fixedly connected to the linear motor mover. The magnetic track is installed on the bottom plate and corresponds to the linear electronic mover.

3. In the integrated linear motor module as described in claim 1, the bottom plate and the side plate are designed as an integrated unit, the linear motor body includes a sliding table, and the sliding table and the slider are designed as an integrated unit.

4. The integrated linear motor module according to claim 1, characterized in that: The rolling element is composed of multiple balls. The balls on the slide rail in the groove are in two-point contact with the slide rail, and the force direction of the contact point is at an angle of 45° to the horizontal direction.

5. The integrated linear motor module according to claim 1, characterized in that: The slider and the base are symmetrical along their midlines.

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