Detection platform

Abstract

The utility model provides a detection platform, which comprises a base and a sliding table, the sliding table is slidably connected with the base, the detection platform further comprises a linear motor, the linear motor comprises a stator device and a mover device, the mover device is fixedly connected with the base, the stator device is fixedly connected with the sliding table, the stator device can move relative to the mover device, and the mover device is fixedly connected with the base. The stator device comprises stator grooves and a plurality of iron cores, the stator grooves are fixedly installed on the face, facing the base, of the sliding table, the iron cores are obliquely arranged on the stator grooves, and the iron cores are parallel to one another. The stator device is installed on the face, facing the base, of the sliding table, the stator device can move relative to the rotor device, the mass of the stator device is light compared with the mass of the rotor device, and therefore the sliding table can be driven to move only through small pushing force, more electricity is saved, and the response speed is higher. In addition, the iron cores are obliquely arranged on the stator slots, and the plurality of iron cores are arranged in parallel, so that the cogging effect can be reduced, and the movement of the sliding table relative to the base is smoother.

Description

Technical Field

[0001] The utility model relates to a detection platform with high precision and fast response, belonging to the field of precision mechanical equipment. Background Art

[0002] In the existing detection platforms, linear motors are more commonly used. Linear motors generally include a stator and a mover. When applied to the detection platform, the stator is usually installed on a base, and the mover is connected to the slide. The slide is driven by the mover to move relative to the stator. Because the mass of the mover is large, the thrust required to drive the slide is too large, resulting in a slow response speed of the slide movement. When the slide stops, it is affected by inertia and is difficult to control.

[0003] In addition, in existing linear motors, the stator usually generates a large cogging force. When the motor works at high speed, the mechanical oscillation caused by the cogging force will increase the mechanical noise of the motor and even cause mechanical damage, while also affecting the motor's accuracy. The magnetic flux density of the linear motor is uneven, and this imbalance will further cause power supply voltage and magnetic flux fluctuations, which is not conducive to the stability of the motor's magnetic field.

[0004] In view of this, it is indeed necessary to improve the structure of the existing detection platform to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a detection platform with higher accuracy and faster response.

[0006] To achieve the above-mentioned purpose, the utility model provides a detection platform, including a base and a slide, the slide is slidably connected to the base, the detection platform also includes a linear motor, the linear motor includes a stator device and a mover device, the mover device is fixedly connected to the base, the stator device is fixedly connected to the slide, the stator device can move relative to the mover device, the stator device includes a stator slot and a plurality of iron cores, the stator slot is fixedly installed on a side of the slide facing the base, the iron core is tilted and arranged on the stator slot, and the plurality of iron cores are parallel to each other.

[0007] As a further improvement of the utility model, the slide includes a mounting surface parallel to the base, and seat walls extending from both sides of the mounting surface toward the base, a groove is provided on the side of the mounting surface facing the base, the groove includes a groove bottom and two groove walls perpendicular to the groove bottom and extending from both sides of the groove bottom toward the base, and a step surface is connected between the groove wall and the seat wall.

[0008] As a further improvement of the utility model, a guide rail is installed on the base, a sliding block is installed on the guide rail, the sliding block can slide relative to the guide rail, and the step surface is fixedly connected to the sliding block.

[0009] As a further improvement of the utility model, the seat wall on one side is a first seat wall, and the seat wall on the other side is a second seat wall, a scale is provided on the side of the first seat wall facing away from the groove, and a reader is installed on the side of the base located on the second seat wall, and the reader is configured to read the scale of the scale.

[0010] As a further improvement of the present invention, the detection platform also includes a limit assembly, which includes a limit block and a limit pile, the limit block is located on the second seat wall, the limit pile is located on the base, and the limit pile is located on both sides of the limit block.

[0011] As a further improvement of the present invention, the limit block is made of damping material.

[0012] As a further improvement of the present invention, a mounting block is fixedly connected to one side of the base located on the second seat wall, and the mounting block includes a receiving cavity, and the reader is located in the receiving cavity.

[0013] As a further improvement of the present invention, the detection platform further includes a cover plate, which is located at both ends of the sliding direction of the slide, the cover plate is fixedly connected to the slide, and the cover plate is configured to close the slide.

[0014] The beneficial effect of the utility model is that compared with the prior art, the detection platform of the utility model can move relative to the mover device by installing the mover device on the base and installing the stator device on the side of the slide facing the base. The stator device is lighter than the mover device, so that only a smaller driving force is needed to drive the slide to move, which is more power-saving and has a faster response speed. In addition, the iron core is tilted on the stator slot, and several iron cores are arranged parallel to each other, which can reduce the tooth slot effect and make the slide move more smoothly relative to the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of a detection platform according to an embodiment of the utility model.

[0016] Figure 2 yes Figure 1 The three-dimensional structure diagram of the detection platform after removing the slide is shown.

[0017] Figure 3 yes Figure 1 The three-dimensional structural diagram of the slide in the detection platform shown.

[0018] Figure 4 yes Figure 2 The three-dimensional structure of the stator device in the detection platform is shown.

[0019] Description of reference numerals:

[0020] 100-Detection platform;

[0021] 200-base, 210-guide rail, 220-sliding block, 230-reader, 240-mounting block, 250-cover plate;

[0022] 300-slide table, 310-mounting surface, 311-groove, 3111-groove bottom, 3112-groove wall, 313-step surface, 320-scale, 330-seat wall;

[0023] 400-limiting assembly, 410-limiting block, 420-limiting pile;

[0024] 500 - linear motor, 510 - stator device, 511 - stator slot, 512 - iron core, 520 - mover device. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] It should be noted here that in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0027] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0028] The utility model provides a detection platform 100, see Figures 1 to 4As shown, the detection platform 100 includes a base 200 and a slide 300, and the slide 300 is slidably connected to the base 200. The detection platform 100 also includes a linear motor 500, and the linear motor 500 is configured to drive the slide 300 to slide relative to the base 200. The linear motor 500 includes a stator device 510 and a mover device 520. The mover device 520 is fixedly connected to the base 200, and the stator device 510 is fixedly connected to the slide 300. The stator device 510 can move relative to the mover device 520. The stator device 510 includes a stator slot 511 and a plurality of iron cores 512. The stator slot 511 is fixedly installed on a side of the slide 300 facing the base 200, and the iron core 512 is obliquely arranged on the stator slot 511, and the plurality of iron cores 512 are parallel to each other. By installing the mover device 520 on the base 200 and installing the stator device 510 on the side of the slide 300 facing the base 200, the stator device 510 can move relative to the mover device 520. The stator device 510 is lighter than the mover device 520. In this way, only a smaller driving force is needed to drive the slide 300 to move, which saves more power and has a faster response speed.

[0029] In addition, the iron core 512 is arranged obliquely on the stator slot 511, and several iron cores 512 are arranged parallel to each other, which can reduce the cogging effect. In the linear motor 500, the direction of the cogging force is the same as or opposite to the moving direction. The cogging effect is considered to be an unwanted characteristic of the motor, because if it is not compensated, it will introduce speed fluctuations and instability in the movement, affecting the positioning accuracy. When the cogging force is too large, it will affect the movement of the slide 300 relative to the base 200, resulting in insufficient smoothness of movement. At the same time, it will also affect the positioning accuracy, especially at medium speeds. It is the most difficult to offset. In this embodiment, several iron cores 512 are arranged obliquely in the stator slots 511, which can reduce the impact of the cogging effect.

[0030] Furthermore, the slide 300 includes a mounting surface 310 parallel to the base 200, and seat walls 330 extending from both sides of the mounting surface 310 toward the base 200. A groove 311 is provided on the side of the mounting surface 310 facing the base 200. The groove 311 includes a groove bottom 3111 and two groove walls 3112 perpendicular to the groove bottom 3111 and extending from both sides of the groove bottom 3111 toward the base 200. A step surface 313 is connected between the groove wall 3112 and the seat wall 330. The linear motor 500 is placed in the groove 311, which makes the space more compact, the overall volume more compact, and the handling more convenient.

[0031] Furthermore, a guide rail 210 is installed on the base 200, and a sliding block 220 is installed on the guide rail 210. The sliding block 220 can slide relative to the guide rail 210, and the step surface 313 is fixedly connected to the sliding block 220. The step surface 313 of the slide 300 is fixedly connected to the sliding block 220. Driven by the stator device 510, the slide 300 moves along the guide rail 210 through the sliding block 220 to achieve smooth movement of the slide 300 relative to the base 200. The contact surface between the sliding block 220 and the guide rail 210 is precisely processed to provide a stable motion trajectory, reduce friction and vibration, and further improve the motion accuracy.

[0032] Furthermore, the seat wall 330 on one side is the first seat wall, and the seat wall 330 on the other side is the second seat wall. A scale 320 is provided on the side of the first seat wall facing away from the groove 311, and a reader 230 is installed on the side of the second seat wall on the base 200. The reader 230 is configured to read the scale of the scale 320. The scale 320 is a high-precision displacement detection device, and its measurement output signal is a digital pulse, which has the characteristics of a large detection range, high detection accuracy, and fast response speed. Combined with the reader 230, the displacement data of the slide 300 relative to the base 200 can be read in real time and accurately, providing high-precision position feedback for the system.

[0033] Furthermore, the detection platform 100 also includes a limit assembly 400, which includes a limit block 410 and a limit pile 420. The limit block 410 is located on the second seat wall, the limit pile 420 is located on the base 200, and the limit pile 420 is located on both sides of the limit block 410. The setting of the limit assembly 400 can prevent the detection platform 100 from being damaged due to excessive movement, thereby extending the service life of the equipment. At the same time, during the operation or maintenance process of personnel, the limit assembly 400 can also play a protective role to prevent personnel from being injured due to misoperation or accidental movement of the equipment.

[0034] Furthermore, the limit block 410 is made of damping material. By adopting the limit block 410 made of damping material, it has the ability to convert mechanical vibration energy into heat energy and dissipate it. When the platform or related components contact the limit block 410, the damping material can effectively absorb and dissipate the energy generated by the collision, reduce impact and vibration, and thus provide a better cushioning effect.

[0035] Furthermore, a mounting block 240 is fixedly connected to one side of the second seat wall of the base 200, and the mounting block 240 includes a receiving cavity, and the reader 230 is located in the receiving cavity. The mounting block 240 is fixedly connected to the base 200, and the receiving cavity of the mounting block 240 can better protect the reader 230 and prevent the reader 230 from being damaged.

[0036] Furthermore, the detection platform 100 further includes a cover plate 250, which is located at both ends of the sliding direction of the slide 300, and the cover plate 250 is fixedly connected to the slide 300, and the cover plate 250 is configured to close the slide 300. The cover plate 250 can prevent dust from entering the interior of the slide 300, thereby extending the service life of the linear motor 500.

[0037] In summary, the detection platform 100 of the utility model, by installing the mover device 520 on the base 200, and installing the stator device 510 on the side of the slide 300 facing the base 200, the stator device 510 can move relative to the mover device 520, and the stator device 510 is lighter than the mover device 520, so that only a smaller driving force is needed to drive the slide 300 to move, which is more power-saving and has a faster response speed. In addition, the iron core 512 is tilted on the stator slot 511, and a plurality of iron cores 512 are arranged parallel to each other, which can reduce the tooth slot effect, so that the movement of the slide 300 relative to the base 200 is smoother.

[0038] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A detection platform, characterized in that: The invention comprises a base (200) and a slide (300), wherein the slide (300) is slidably connected to the base (200), and the detection platform further comprises a linear motor (500), wherein the linear motor (500) comprises a stator device (510) and a mover device (520), wherein the mover device (520) is fixedly connected to the base (200), and the stator device (510) is fixedly connected to the slide (300), and the stator device (510) can move relative to the mover device (520), and the stator device (510) comprises a stator slot (511) and a plurality of iron cores (512), wherein the stator slot (511) is fixedly mounted on a side of the slide (300) facing the base (200), and the iron core (512) is tiltedly arranged on the stator slot (511), and the plurality of iron cores (512) are parallel to each other.

2. The detection platform according to claim 1, characterized in that: The slide (300) comprises a mounting surface (310) parallel to the base (200), and seat walls (330) extending from both sides of the mounting surface (310) toward the base (200); a groove (311) is provided on the side of the mounting surface (310) facing the base (200); the groove (311) comprises a groove bottom (3111) and two groove walls (3112) perpendicular to the groove bottom (3111) and extending from both sides of the groove bottom (3111) toward the base (200); a step surface (313) is connected between the groove wall (3112) and the seat wall (330).

3. The detection platform according to claim 2, characterized in that: A guide rail (210) is installed on the base (200), a sliding block (220) is installed on the guide rail (210), the sliding block (220) can slide relative to the guide rail (210), and the step surface (313) is fixedly connected to the sliding block (220).

4. The detection platform according to claim 2, characterized in that: The seat wall (330) on one side is a first seat wall, and the seat wall (330) on the other side is a second seat wall. A scale (320) is provided on the side of the first seat wall facing away from the groove (311). A reader (230) is installed on the side of the second seat wall on the base (200), and the reader (230) is configured to read the scale of the scale (320).

5. The detection platform according to claim 4, characterized in that: The detection platform further comprises a limiting assembly (400), wherein the limiting assembly (400) comprises a limiting block (410) and a limiting pile (420), wherein the limiting block (410) is located on the second seat wall, the limiting pile (420) is located on the base (200), and the limiting pile (420) is located on both sides of the limiting block (410).

6. The detection platform according to claim 5, characterized in that: The limit block (410) is made of damping material.

7. The detection platform according to claim 4, characterized in that: A mounting block (240) is fixedly connected to one side of the second seat wall of the base (200), and the mounting block (240) comprises a receiving cavity, and the reader (230) is located in the receiving cavity.

8. The detection platform according to any one of claims 1 to 7, characterized in that: The detection platform further comprises a cover plate (250), wherein the cover plate (250) is located at both ends of the sliding direction of the slide table (300), the cover plate (250) is fixedly connected to the slide table (300), and the cover plate (250) is configured to close the slide table (300).

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