Integrated externally-embedded guide rail module

Abstract

The invention discloses an integrated externally-embedded guide rail module, and belongs to the technical field of linear motor modules, the integrated externally-embedded guide rail module comprises an aluminum profile base, and is characterized in that a pair of steel bar sliding grooves are formed in the upper portions of the two sides of the aluminum profile base correspondingly; a steel bar sliding groove is formed in the aluminum profile base, a grinding steel bar is fixedly installed in the position, located in the steel bar sliding groove, of the aluminum profile base, a plurality of motor magnets are arranged in the middle of the upper side of the aluminum profile base, and motor coils are arranged on the upper sides of the motor magnets. The device can be quickly disassembled, assembled and maintained, is convenient to maintain, only four grinding steel bars of the whole device are made of steel through the structure of the grinding steel bars, the cost is lower under the condition that the service life is not affected, meanwhile, the overall width is effectively reduced, and the overall size is smaller under the condition that it is guaranteed that the size of the motor is not changed.

Description

Technical Field

[0001] This invention relates to the technical field of linear motor modules, and more specifically, to an integrated external guide rail module. Background Technology

[0002] A linear motor module is a device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion structure. It mainly consists of a moving stator, guide rail, encoder, and sensor. The moving stator provides power, the guide rail guides and supports the load, the encoder provides positioning and feedback, and the sensor acts as a limit switch to prevent damage caused by misoperation. Existing conventional linear motor modules all use traditional rolling linear guides as the guiding and transmission components. Their structural dimensions are largely similar across brands, showing a high degree of convergence. For this reason, the external dimensions of conventional linear motor modules are greatly influenced by the linear guide.

[0003] Chinese patent discloses a linear motor module with an externally embedded grooved guide rail (publication number CN214281188U), including a linear motor body, a sliding structure, a base, an end plate, and a cover plate. The linear motor body includes a slider. The base includes a bottom plate and two side plates, which are fixedly connected to the bottom plate to form a base cavity. The end plates are connected to the front and rear sides of the base, blocking the front and rear sides of the base cavity. The cover plate is located on the upper side of the base cavity, and the end plate is connected to the cover plate to support it. The slider includes a main board and a sliding foot, which is fixedly connected to the bottom of the main board. The sliding foot is located on the outer side of the adjacent side plate and is slidably connected to the outer wall of the adjacent side plate through the sliding structure. The sliding foot and the sliding structure are both located on the outer side of the base, not occupying the internal space of the base cavity. If the sliding structure malfunctions, it is easy to handle. The cover plate, end plate, and base together form the base cavity, which can prevent foreign objects from entering the linear motor module. However, this device integrates the slider part into the slide table, making disassembly and maintenance inconvenient. Meanwhile, as application requirements across various industries increase, the demands on module dimensions are also rising, with smaller sizes and greater load-bearing capacity becoming increasingly necessary. Furthermore, the installation process for traditional rolling linear guides is quite cumbersome, requiring assemblers to use tools such as marble gauges and dial indicators on a marble platform for straightening and leveling – a time-consuming and labor-intensive process. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated external guide rail module to solve the problems mentioned in the background art.

[0005] An integrated external guide rail module includes an aluminum profile base, characterized in that: a pair of steel strip grooves are provided on the upper sides of both sides of the aluminum profile base, a grinding steel strip is fixedly installed inside the steel strip grooves of the aluminum profile base, a plurality of motor magnets are provided in the middle of the upper side of the aluminum profile base, a motor coil is provided on the upper side of the motor magnet, and a slide is fixedly installed on the upper side of the motor coil by bolts;

[0006] Special sliders are fixedly installed on both sides of the lower end of the slide table by bolts. The inner cavity sidewall of the special slider is provided with an arc-shaped guide groove. Several slider steel balls are set at the position of the special slider in the steel bar groove. An encoder assembly is set on the front side of the slide table. Several photoelectric components are set at both ends of the rear side of the aluminum profile base. A photoelectric baffle is fixedly installed in the middle of the rear side of the slide table.

[0007] Furthermore, the aluminum profile base is a "U" shaped component, and through mounting holes are provided on both sides of the upper end of the aluminum profile base.

[0008] By adopting the above technical solution, the "U"-shaped structure of the aluminum profile base can effectively reduce the overall volume.

[0009] Furthermore, the motor magnet and the aluminum profile base are fixedly connected, and an air gap is left between the motor magnet and the motor coil.

[0010] Furthermore, the width of the air gap is 0.1-0.5mm.

[0011] By adopting the above technical solution, the air gap between the motor magnet and the motor coil ensures that the two components do not come into contact with each other, effectively reducing frictional losses between the components.

[0012] Furthermore, the encoding assembly includes an encoder bracket fixed to the front side of the slide, and an encoder is fixedly mounted on the lower end of the encoder bracket by bolts.

[0013] By adopting the above technical solution and by setting up an encoding component, the encoder can realize real-time monitoring and control of parameters such as displacement, speed and acceleration, while ensuring the normal operation of the linear motor.

[0014] Furthermore, the optoelectronic component includes a sensor bracket fixedly installed on the rear side of the aluminum profile base, and a photoelectric sensor is provided on the upper end of the sensor bracket.

[0015] By adopting the above technical solution, the photoelectric sensor can sense and detect the position of the photoelectric baffle. When the photoelectric baffle blocks the light, the control system controls and adjusts the whole system according to this signal.

[0016] Furthermore, a pair of module end caps are fixedly installed at both ends of the aluminum profile base by bolts, and anti-collision blocks are provided on the side of the two module end caps facing the slide.

[0017] By adopting the above technical solution, the module end cover can provide a certain degree of sealing protection for the aluminum profile base, and can prevent foreign objects from entering the motor coil.

[0018] Furthermore, a module top cover is fixedly installed on the upper end of the module end cover by bolts, and a magnetic grid ruler is fixedly installed on the upper rear side of the aluminum profile base.

[0019] By adopting the above technical solution, the module cover can provide a sealed protection for the upper side of the slide.

[0020] Furthermore, the width of the "U"-shaped cavity of the aluminum profile base is adjustable to accommodate motor coils and motor magnets of different specifications.

[0021] Furthermore, the slider steel ball and the grinding steel strip are interference-fitted to improve sliding rigidity and reduce frictional loss.

[0022] Compared with the prior art, the advantages of this invention are:

[0023] 1. In this invention, by setting a structure with a slide table and a special slider, the entire special slider and slide table are separate from the aluminum profile base, which can be quickly disassembled and repaired, and is convenient for maintenance.

[0024] 2. In this invention, by setting the structure of the grinding steel strips, only four grinding steel strips of steel are used in the entire device. This reduces the cost without affecting the service life, and also effectively reduces the overall width, resulting in a smaller overall size while keeping the motor size unchanged. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is an exploded view of the overall structure of the present invention;

[0027] Figure 3 This is a cross-sectional view of the motor coil of the present invention.

[0028] The following are the labels in the diagram: 1. Module top cover; 2. Module end cover; 3. Photoelectric sensor; 4. Sensor bracket; 5. Motor magnet; 6. Aluminum profile base; 601. Magnetic scale; 7. Mounting hole; 8. Special slider; 9. Slide table; 10. Photoelectric baffle; 11. Encoder; 12. Encoder bracket; 13. Motor coil; 14. Anti-collision block; 15. Slider ball; 16. Arc-shaped guide groove; 17. Steel strip groove; 18. Grinded steel strip. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1 - Figure 3 As shown, the embodiment of the present invention provides: an aluminum profile base 6, a pair of steel strip grooves 17 are provided on the upper sides of both sides of the aluminum profile base 6, grinding steel strips 18 are fixedly installed inside the steel strip grooves 17 of the aluminum profile base 6, a plurality of motor magnets 5 are provided in the middle of the upper side of the aluminum profile base 6, a motor coil 13 is provided on the upper side of the motor magnets 5, and a slide table 9 is fixedly installed on the upper side of the motor coil 13 by bolts;

[0031] Special sliders 8 are fixedly installed on both sides of the lower end of the slide table 9 by bolts. The inner cavity sidewall of the special slider 8 is provided with an arc-shaped guide groove 16. Several slider balls 15 are set at the position of the special slider 8 in the steel strip groove 17. The special slider 8 and the steel strip groove 17 are slidably connected by the slider balls 15. An encoder assembly is set on the front side of the slide table 9. Several photoelectric components are set at both ends of the rear side of the aluminum profile base 6. A photoelectric baffle 10 is fixedly installed in the middle of the rear side of the slide table 9.

[0032] The aluminum profile base 6 is a "U" shaped component. Through mounting holes 7 are provided on both sides of the upper end of the aluminum profile base 6. The "U" shaped structure of the aluminum profile base 6 can effectively reduce the overall volume, and the width of the "U" shaped cavity of the aluminum profile base 6 can be adjusted to accommodate the motor coil 13 and motor magnet 5 of different specifications.

[0033] The motor magnet 5 and the aluminum profile base 6 are fixedly connected by bolts. An air gap is left between the motor magnet 5 and the motor coil 13. The air gap between the motor magnet 5 and the motor coil 13 ensures that the two parts do not contact each other, effectively reducing frictional loss between the parts. The width of the air gap is 0.1-0.5mm.

[0034] The encoding component includes an encoder bracket 12 fixedly installed on the front side of the slide table 9. An encoder 11 is fixedly installed on the lower end of the encoder bracket 12 by bolts. By setting the encoding component, the encoder 11 can realize real-time monitoring and control of parameters such as displacement, speed and acceleration, while ensuring the normal operation of the linear motor.

[0035] The photoelectric component includes a sensor bracket 4 fixedly installed on the rear side of the aluminum profile base 6. A photoelectric sensor 3 is fixedly installed on the upper end of the sensor bracket 4. The photoelectric sensor 3 can detect the position of the photoelectric baffle 10. When the photoelectric baffle 10 blocks the light, the control system controls and adjusts the whole according to this signal.

[0036] A pair of module end caps 2 are fixedly installed at both ends of the aluminum profile base 6 by bolts. Anti-collision blocks 14 are fixedly installed on the upper side of the opposite side of the two module end caps 2. The module end caps 2 can provide a certain sealing protection for the aluminum profile base 6 and prevent foreign objects from entering the motor coil 13.

[0037] The module end cover 2 is fixedly installed with the module top cover 1 by bolts. The upper rear side of the aluminum profile base 6 is fixedly installed with a magnetic grid ruler 601. The module top cover 1 can seal and protect the upper side of the slide table 9.

[0038] The working principle of this invention is as follows: The installer locks the aluminum profile base 6 onto the high-precision marble workbench, then connects and locks the slide table 9 to the special slider 8 on one side using screws. The special slider 8 on the other side is first limited by screws, and then slids it into the grinding steel strip 18 on the upper side of the aluminum profile base 6. After using an eccentric pin to pre-press the special slider 8 on the other side and the slide table 9, the screws are tightened to fix it. At this time, the slider steel ball 15 on the inner side of the special slider 8 contacts the grinding steel strip 18, minimizing friction and ensuring smooth operation while providing higher rigidity. The slider steel ball 15 and the grinding steel strip 18 are interference-fitted to improve sliding rigidity and reduce friction loss. After the operator confirms that the slide table 9 slides smoothly, the motor coil 13 is connected and fixed to the slide table 9 with bolts. Finally, the encoder 11, encoder bracket 12, and special slider 8 are fixed with bolts. The encoder 11 can realize displacement... Real-time monitoring and control of parameters such as speed and acceleration are achieved while ensuring the normal operation of the linear motor. After the slide table 9 and the special slider 8 are installed, an air gap is left between the motor magnet 5 and the motor coil 13. At this time, the mechanical connection between the entire assembly of the special slider 8, the motor coil 13 and the slide table 9 and the aluminum profile base 6 and the motor magnet 5 is only the contact surface of the slider steel ball 15 and the grinding steel strip 18. Only four grinding steel strips 18 of the entire device are made of steel, which reduces the cost without affecting the overall strength and service life. Then, the magnetic grid ruler 601 is set on the outside of the aluminum profile base 6 at the specified height. Then, the two module end caps 2, four anti-collision blocks 14, three sets of photoelectric components and the module top cover 1 are connected to the aluminum profile base 6 with bolts in sequence to complete the overall assembly. The entire device has a separable structure, which allows for quick disassembly and repair of components, making maintenance convenient.

[0039] The photoelectric sensor 3 and sensor bracket 4 are fixed to the aluminum profile base 6 with bolts. A photoelectric baffle 10 is fixedly installed on the rear side of the slide table 9. The photoelectric sensor 3 can detect the position of the photoelectric baffle 10. When the photoelectric baffle 10 blocks the light, the control system controls and adjusts the whole according to this signal. The motor coil 13 and motor magnet 5 are set in the middle of the "U"-shaped aluminum profile base 6. The internal width of the "U"-shaped cavity of the aluminum profile base 6 can be changed according to actual needs to adapt to the installation of various linear motors. The compact structure can effectively reduce the overall width and make the overall size smaller while keeping the motor size unchanged.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An integrated external guide rail module, comprising an aluminum profile base (6), characterized in that: A pair of steel strip grooves (17) are provided on both sides of the aluminum profile base (6). Grinding steel strips (18) are fixedly installed inside the steel strip grooves (17) of the aluminum profile base (6). Several motor magnets (5) are provided in the middle of the upper side of the aluminum profile base (6). A motor coil (13) is provided on the upper side of the motor magnet (5). A slide table (9) is fixedly installed on the upper side of the motor coil (13) by bolts. Special sliders (8) are fixedly installed on both sides of the lower end of the slide table (9) by bolts. The inner cavity sidewall of the special slider (8) is provided with an arc-shaped guide groove (16). Several slider steel balls (15) are set at the position of the special slider (8) in the steel strip groove (17). An encoder assembly is set on the front side of the slide table (9). Several photoelectric components are set on both ends of the rear side of the aluminum profile base (6). A photoelectric baffle (10) is fixedly installed in the middle of the rear side of the slide table (9).

2. The integrated external guide rail module according to claim 1, characterized in that: The aluminum profile base (6) is a "U" shaped component, and through mounting holes (7) are provided on both sides of the upper end of the aluminum profile base (6).

3. The integrated external guide rail module according to claim 1, characterized in that: The motor magnet (5) and the aluminum profile base (6) are fixedly connected, and an air gap is left between the motor magnet (5) and the motor coil (13).

4. The integrated external guide rail module according to claim 3, characterized in that: The width of the air gap is 0.1-0.5 mm.

5. The integrated external guide rail module according to claim 1, characterized in that: The encoding assembly includes an encoder bracket (12) fixed to the front side of the slide (9), and an encoder (11) is fixedly mounted on the lower end of the encoder bracket (12) by bolts.

6. The integrated external guide rail module according to claim 1, characterized in that: The optoelectronic component includes a sensor bracket (4) fixedly installed on the rear side of the aluminum profile base (6), and a photoelectric sensor (3) is provided on the sensor bracket (4).

7. The integrated external guide rail module according to claim 1, characterized in that: The aluminum profile base (6) has a pair of module end caps (2) fixedly installed at both ends by bolts, and the two module end caps (2) are provided with anti-collision blocks (14) on the side facing the slide (9).

8. The integrated external guide rail module according to claim 6, characterized in that: The module end cap (2) is fixedly installed with a module top cap (1) by bolts, and a magnetic grid ruler (601) is fixedly installed on the upper rear side of the aluminum profile base (6).

9. The integrated external guide rail module according to claim 2, characterized in that: The width of the "U"-shaped cavity of the aluminum profile base (6) is adjustable to accommodate different specifications of the motor coil (13) and motor magnet (5).

10. The integrated external guide rail module according to claim 1, characterized in that: The slider steel ball (15) is interference-fitted with the grinding steel strip (18) to improve sliding rigidity and reduce friction loss.

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