Automatic sliding table

Abstract

The invention discloses an automatic sliding table, which belongs to the technical field of sliding workbenches and mainly comprises a guide component and a sliding plate mounted on the guide component in a linear reciprocating manner, the guide component comprises a pair of sliding rails which are arranged in parallel at an interval, and a plurality of linear guide racks which are connected in series are mounted between the two sliding rails in parallel; a sliding seat is arranged above the position between the two sliding rails, the bottoms of the two opposite side walls of the sliding seat are in linear sliding fit with the corresponding sliding rails respectively, a power device is installed on the upper surface of the sliding seat, an output gear is installed on the lower surface of the sliding seat, and the output gear is driven by the power device to rotate so as to be meshed with the guide rack. And the front side of the sliding seat is fixedly connected with the sliding plate. The automatic sliding table is simple and ingenious in structure, capable of accurately achieving linear sliding, long in stroke and low in manufacturing cost.

Description

Technical Field

[0001] The invention relates to the technical field of sliding workbenches, in particular to an automatic sliding table. Background Art

[0002] Automatic slide, also known as electric slide or linear slide, is a precision mechanical device that can move automatically or electrically, mainly used to achieve linear motion or positioning functions. It consists of slide rails, sliders, drive devices (such as motors, cylinders), guide rails, screws or belts, sensors, etc., and can accurately move loads in a straight line. It is widely used in automation equipment, precision measurement, industrial robots, optical equipment, semiconductor manufacturing, medical equipment, scientific research experiments and other fields.

[0003] The working principle of the existing automatic slide is usually based on the drive mode of screw drive, belt drive and direct drive. Among them, the screw drive drives the slider to move along the linear guide through the rotating screw; the belt drive drives the slider to move through the motor driving the belt; and the direct drive mode (such as linear motor) omits the intermediate transmission mechanism and directly generates thrust in the linear direction to realize the movement of the slider. However, the screw drive requires a precision ball screw to be realized, and its length has certain restrictions, while the belt drive has poor stability and is prone to angular transmission errors. The linear motor has a greater restriction on the sliding stroke and is not suitable for some occasions with shorter strokes.

[0004] In addition, when the existing automatic slide is working, a rigid limit block is usually directly set to limit the starting point of the moving stroke of the workbench. The rigid collision when parking is easy to damage the workbench and its transmission mechanism. Although the use of rubber blocks for buffering can weaken the vibration to a certain extent, the energy absorption effect is relatively limited, the vibration reduction effect is not good, and the requirements for the rubber material are especially high. Summary of the invention

[0005] In view of the above introduction to the current state of the art, the purpose of the present invention is to provide an automatic slide. The automatic slide adopts an output gear driven by a power device to directly mesh with a guide rack, and is matched with a series of series slide rails. The structure is simple and reliable. It is relatively reliable regardless of short or long distance sliding, the stroke change is flexible, and it is easy to manufacture.

[0006] To achieve the above-mentioned purpose, an automatic slide adopted by the present invention includes a guide component and a slide plate installed on the guide component for linear reciprocating movement, the guide component includes a pair of parallel and spaced slide rails, a plurality of guide racks connected in series and in a straight line are installed parallel to the two slide rails, a slide seat is provided above the two slide rails, the bottoms of the two opposite side walls of the slide seat are respectively linearly slidably matched with the corresponding slide rails, a power device is installed on the upper surface of the slide seat, and an output gear is installed on the lower surface, the output gear is driven to rotate by the power device and keeps meshing with the guide rack, and the front side of the slide seat is fixedly connected to the slide plate.

[0007] Furthermore, the slide seat also includes a mounting plate, the power device is fixed on the upper surface of the mounting plate, and the output gear is rotatably mounted on the lower surface of the mounting plate; a sliding sleeve is fixed to the bottom of each of the two opposite sides of the mounting plate, and the sliding sleeve is mounted on the slide rail in a linear sliding manner, and a rubber pad is fixed on the side of the mounting plate above the sliding sleeve, and elastic buffer components are respectively installed at both ends of the slide rail, and the elastic buffer components can elastically contact the side of the mounting plate when the movement reaches the limit.

[0008] Furthermore, the elastic buffer component includes a cylindrical shaft, a sliding rod, and a pressure spring, wherein the cylindrical shaft is fixed parallel to the slide rail on a frame for fixing the slide rail, the sliding rod is fixedly installed on the axial direction of the cylindrical shaft, and a contact disk with a truncated cone structure is slidably mounted on the axial direction of the free end of the sliding rod, and the large end surface of the contact disk is arranged toward the slide seat. The cylindrical shaft has an annular step at one end facing the slide seat, one end of the pressure spring is coaxially fixedly mounted on the annular step, and the other end of the pressure spring is coaxially connected and mounted on the conical surface of the contact disk near its large end, so that it can move along the axial direction of the slide rod together with the contact disk.

[0009] Furthermore, a notch is provided on a side surface of the sliding seat facing the cylindrical shaft, the rubber pad is fixed on a side surface of the open end of the notch, a cylindrical hole is provided in the center of the bottom of the notch for the sliding rod to slide axially into, and when the contact plate just starts to contact the bottom of the notch, the rubber pad has not yet contacted a limit stop fixed on the frame, and when the rubber pad contacts the limit stop, the pressure spring still has not reached the compression limit.

[0010] Furthermore, the cylindrical shaft is fixed on a bearing block fixed as an integral unit with the limit stop block, and a plurality of limit rings are coaxially fixed on the cylindrical surface of the cylindrical shaft near the annular step; the portion of the cylindrical shaft located in the bearing block is axially slidably installed in the bearing block through a shoulder portion coaxially fixed to its surface, and is in compression contact with a heavy-duty spring sleeved on the cylindrical shaft in the bearing block, and the spacing between the limit ring and the bearing block is less than the axial length of the heavy-duty spring that can still be compressed.

[0011] Furthermore, an annular boss protrudes from the inner wall of the cylindrical hole, a first magnetic element is fixed in the cylindrical hole on the side of the annular boss facing away from the sliding rod, and a second magnetic element is provided in the end of the sliding rod inserted into the cylindrical hole. When the sliding rod is inserted into the cylindrical hole, it can remain relatively motionless due to the mutual attraction of the two magnetic elements.

[0012] Furthermore, the first magnetic element is an electromagnet. When the rubber pad is in compression contact with the limit block, a normally open power switch arranged on the limit block can be pressed down to energize the electromagnet and cause the two magnetic elements to attract each other.

[0013] Furthermore, a connecting plate is fixed to the bottom of one side of the skateboard, and the connecting plate is fixed to the upper surface of the mounting plate through a right-angle plate; one side of the skateboard is also connected to a drag chain through a Z-shaped drag plate, and the drag chain is installed in a slide plate, which is arranged parallel to the slide rail and is located outside the two slide rails.

[0014] Furthermore, a protective cover with a [-shaped cross section is provided on the outside of the guide rack, and the guide rack is installed in the protective cover; an opening side of the protective cover allows one side of the output gear to extend into and engage with the guide gear; a distance sensor is also provided above the protective cover, and the distance sensor is fixed on the bottom surface of the mounting plate to detect whether the distance between the mounting plate and the protective cover changes during movement.

[0015] Furthermore, the slide plate is fixed on a mounting frame, and the mounting frame includes a plurality of “X”-shaped mounting seats located on both sides of the bottom, a linear slider is embedded and fixed in a groove in the middle of each mounting seat, and the linear slider is installed on the linear guide rail in a linear sliding manner, and a protective cover is provided above the linear guide rail, which is opposite to the linear guide rail in up and down directions, and the protective cover is a channel steel structure with an opening facing downward, and the two grooves on both sides of the mounting seat are respectively used for the two opposite side walls of the protective cover to be inserted and fixed.

[0016] An automatic slide of the present invention realizes linear sliding based on the meshing principle of gear racks. Multiple sections of racks can be spliced ​​according to stroke requirements to increase the sliding stroke. The automatic slide is simple and practical with low manufacturing cost. The gear rack mechanism not only serves as a transmission mechanism for power transmission, but also plays a certain guiding role, assisting a series of slide rails to accurately guide the linear motion of the slide plate.

[0017] In addition, the elastic buffer components provided can reduce vibration step by step through three-stage buffer shock-absorbing elements, which not only ensures that the vibration energy is fully released, but also ensures that during the release process, the entire slide has a smooth transition in contact and collision when it runs to the limits at both ends, avoiding damage to the slide and its transmission parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following are auxiliary illustrations for explaining some specific embodiments of the present invention. The drawings described are mainly the principles of the specific operation execution structures or methods of some embodiments of the present invention. However, this does not mean that the physical structure or operation steps of the present invention can only be as shown in the drawings.

[0019] Figure 1 It is an assembly diagram of an automatic slide table of the present invention;

[0020] Figure 2-3 yes Figure 1 An enlarged view of the local structure of the meshing point between the output gear and the guide rack;

[0021] Figure 4 It is a structural schematic diagram of an elastic buffer component;

[0022] Figure 5 Another cross-sectional view of an elastic buffer component

[0023] Figure 6 This is the assembly structure diagram of the linear slider and the linear guide;

[0024] Figure 7 It is a three-dimensional structural diagram of the mounting base;

[0025] Figure 8 This is a disassembled display diagram of a matching structure of a protective cover, a mounting base and a linear guide rail.

[0026] In the figure, a skateboard 1, a mounting plate 2, a drag chain 3, a protective cover 4, a frame 5, a power unit 6, a protective cover 7, a guide rack 8, a sleeve 9, a slide rail 10, an output gear 11, an elastic buffer component 12, a cylindrical shaft 1201, a limit ring 1202, a pressure spring 1203, a contact plate 1204, a rubber pad 1205, a limit block 1206, a bearing block 1207, a sliding rod 1208, a first magnetic element 1209, a second magnetic element 1210, a shoulder 1211, a heavy spring 1212, an annular boss 1213, a connecting plate 13, a right-angle plate 14, a linear slider 15, a linear guide rail 16, a groove 1601 in the middle, two grooves 1602 on both sides, and a mounting seat 17. DETAILED DESCRIPTION

[0027] The embodiments of the present invention will be fully described below, and some core features of the embodiments will be specifically shown in the accompanying drawings, wherein the same or similar reference numerals in the drawings represent the same or similar technical features, or structures or steps or processes with similar functions. Other embodiments replaced by ordinary technicians based on these embodiments without the need for creative work also belong to the protection scope of the present invention.

[0028] See also Figure 1-3 As shown in the structure, the automatic slide in this embodiment mainly includes a guide component, a slide plate 1 installed on the guide component for linear reciprocating movement, and the slide plate 1 is used as a workbench, and the corresponding workpiece and processing equipment can be installed. In actual production, the guide component includes a pair of parallel and spaced slide rails 10. Between the two slide rails 10, a number of guide racks 8 are installed in series with each other in a straight line in parallel with the slide rails 10. These guide racks 8 can be fixed by bolts and can be adaptively stacked and installed in series according to the stroke length, which is more flexible. A slide seat is provided above the two slide rails 10. The bottoms of the two opposite side walls of the slide seat should respectively cooperate with the corresponding slide rails 10 in linear sliding to realize the linear movement of the slide seat. Specifically, a power device 6, such as a motor or a pneumatic device, is installed on the upper surface of the slide, and an output gear 11 is installed on the lower surface of the slide. The output gear 11 is driven to rotate by the power device 6, thereby maintaining engagement with the guide rack 8. Because the guide rack 8 is fixed, when the output gear 11 rotates, the slide moves linearly along the guide rack 8, and then the front side of the slide is fixedly connected to the skateboard 1, thereby realizing the linear sliding of the skateboard 1.

[0029] As one of the specific implementation structures, the slide seat also includes a mounting plate 2, which is preferably arranged horizontally, and the power device 6 is fixed on the upper surface of the mounting plate 2, such as bolted connection. The output gear 11 is rotatably mounted on the lower surface of the mounting plate 2, and the bottoms of the two opposite sides of the mounting plate 2 are respectively fixed with a sliding sleeve 9, and the sliding sleeve 9 is mounted on the slide rail 10 in a linear sliding manner, so that under the transmission action of the output gear 11 and the guide rack 8, the linear sliding cooperation of the sliding sleeve 9 and the slide rail 10 is assisted to realize linear sliding. At the same time, a rubber pad 1205 is fixed on the side of the mounting plate 2 above the sliding sleeve 9, and the rubber pad 1205 is slightly hard in texture and has certain pressure bearing and elasticity. In addition, each elastic buffer component 12 is installed at each end of the slide rail 10, and the elastic buffer component 12 and the side of the mounting plate 2 can be elastically contacted through the mounting plate 2 when the slide seat moves to the limit, and then buffer and damp, so as to avoid rigid collision when moving to the limit and damage the automatic slide.

[0030] like Figure 3-4 As shown, the elastic buffer component 12 in this embodiment may specifically include a cylindrical shaft 1201, a sliding rod 1208, and a pressure spring 1203. Specifically, the cylindrical shaft 1201 is fixed parallel to the slide rail 10 on a frame 5 on which the slide rail 10 is fixedly installed, and the frame 5 is fixedly arranged. The sliding rod 1208 is fixedly installed axially on the cylindrical shaft 1201, and a contact disk 1204 with a truncated cone structure is also slidably mounted on the axial direction of the free end of the sliding rod 1208. The large end face of the contact disk 1204 is arranged toward the slide seat so as to contact with the side of the slide seat, increase the contact area and serve as a direct element to withstand impact force. During the specific production, the cylindrical shaft 1201 has an annular step at one end facing the sliding seat, so that one end of the above-mentioned pressure spring 1203 can be coaxially fixed on the annular step to realize the installation and fixation of the pressure spring 1203, and the other end of the cylindrical shaft 1201 is coaxially connected and sleeved on the conical surface of the contact plate 1204 near its large end to realize the connection between the pressure spring 1203 and the contact plate 1204, and can move axially along the sliding rod 1208 together with the contact plate 1204, that is, the pressure spring 1203 can be compressed accordingly to buffer and reduce shock in time.

[0031] See also Figure 4 In this embodiment, a notch is specially processed on the side surface of the slide seat facing the cylindrical shaft 1201. The notch can be U-shaped. The rubber pad 1205 mentioned above is fixed on the side surface of the opening end of the notch, and also at the bottom center of the notch. Figure 5As shown, a cylindrical hole is specially provided for the sliding rod 1208 to be axially slidably inserted. In use, when the contact plate 1204 just starts to contact with the bottom of the notch, the rubber pad 1205 has not yet contacted with a limit stop 1206 fixed on the frame 5, that is, at this time, it completely relies on the elastic buffering and shock absorption of the pressure spring 1203, and its stroke is relatively large. When the rubber pad 1205 contacts the limit stop 1206, it mainly relies on the rubber pad 1205 to slow down or absorb shock. At this time, the pressure spring 1203 still has not reached the compression limit, otherwise the pressure spring 1203 will be damaged. Therefore, the rubber pad 1205 also plays an additional protective role for the pressure spring 1203.

[0032] As one of the structural designs for specific production, such as Figure 4-5 , the cylindrical shaft 1201 is fixed on a bearing block 1207 fixedly connected to the limit stopper 1206, and a plurality of limit rings 1202, for example, two, are coaxially fixed on the cylindrical surface of the cylindrical shaft 1201 near the annular step. At the same time, the part of the cylindrical shaft 1201 located in the bearing block 1207 is axially slidably installed in the bearing block 1207 through a shoulder 1211 coaxially fixed to its surface, and is in compression contact with a heavy spring 1212 sleeved on the cylindrical shaft 1201 in the bearing block 1207. The heavy spring 1212 has a large elastic stiffness coefficient and serves as an overload protection structure for the entire elastic buffer component 12 to prevent the slide from rapidly advancing and violently colliding with the elastic buffer component 12 when the aforementioned power device 6 loses control, causing damage to the elastic buffer component 12. Therefore, the limit ring 1202 here is spaced from the bearing block 1207. The distance must be smaller than the axial length of the heavy spring 1212 that can be further compressed. In this way, in extreme cases, when the heavy spring 1212 is obviously squeezed and deformed, the strong buffering force of the heavy spring 1212 can achieve timely parking of the aforementioned slide or skateboard 1, and after greatly reducing the impact force, the contact between the limit ring 1202 and the bearing block 1207 is used to finally stop the entire skateboard 1, the slide and its driving device. In this way, accidents can be avoided by the three-level shock absorption of the pressure spring 1203, the rubber pad 1205 and the heavy spring 1212, and finally the limit ring 1202 contacts the bearing block 1207 to achieve a soft landing.

[0033] In addition, since the slide seat will generate a certain reciprocating vibration when it stops at both ends of the slide rail 10, causing the slide plate 1 to be unstable, in order to ensure that the slide plate 1 is relatively stable when parking, such as Figure 5As shown, a limiting ring 1202 is protruded on the inner wall of the cylindrical hole, and a first magnetic element 1209 is specially fixed in the cylindrical hole on the side of the limiting ring 1202 facing away from the sliding rod 1208. A second magnetic element 1210 is correspondingly provided in the end of the sliding rod 1208 inserted into the cylindrical hole. When the sliding rod 1208 is inserted into the cylindrical hole, the two magnetic elements can remain relatively motionless due to the close distance, that is, the vehicle can quickly maintain a stable and motionless state due to the existence of magnetic attraction when parking.

[0034] More automatically, in the above design, the first magnetic element 1209 is an electromagnet. When the rubber pad 1205 is squeezed into contact with the limit block 1206, a normally open power switch arranged on the limit block 1206 can be pressed to energize the electromagnet, thereby allowing the two magnetic elements to attract each other, thereby avoiding the situation where the magnetic attraction force always exists when a permanent magnet is used to make the magnetic element, thereby affecting the sliding of the slide on the slide rail 10.

[0035] During assembly, Figure 3 A connecting plate 13 is fixed to the bottom of one side of the slide 1. The connecting plate 13 is fixed to the upper surface of the mounting plate 2 through a right-angle plate 14, thereby achieving fixed connection with the slide 1. At the same time, a Z-shaped drag plate is connected to a drag chain 3 on one side of the slide 1. The drag chain 3 is installed in a slide plate. The slide plate is parallel to the slide rails 10 and is located outside the two slide rails 10, so that the slide 1 can achieve linear sliding more stably and accurately.

[0036] As a recommended structure, Figure 1 , a protective cover 4 with a [-shaped cross section is also provided on the outside of the guide rack 8. The guide rack 8 is installed in the protective cover 4, and the opening side of the protective cover 4 is installed in a position that allows one side of the output gear 11 to extend into it, thereby meshing with the guide gear to achieve linear drive. As a more practical design, a distance sensor (not shown in the figure) can be provided above the protective cover 4. This distance sensor is fixed to the bottom surface of the mounting plate 2. Because the protective cover 4 itself is installed horizontally and linearly, the thickness of the cover body is consistent everywhere. Therefore, when moving in a straight line, theoretically, the distance sensor should always maintain a fixed distance from the top surface of the protective cover 4, so that it can detect whether the distance between the mounting plate 2 and the protective cover 4 changes during the automatic sliding of the skateboard 1 with the slide seat. If it changes, it means that there is an error in the linear sliding, and timely inspection and maintenance are required to improve the accuracy of automatic sliding.

[0037] Finally, if Figure 6-8As shown, the slide plate 1 in this embodiment is fixed on a mounting frame, and this mounting frame mainly includes a plurality of "X"-shaped mounting seats 17 located on both sides of the bottom. The mounting seats 17 are arranged at intervals from each other and arranged in a straight line. A linear slider 15 is embedded and fixed in a groove 1601 in the middle of each mounting seat 17. The linear slider 15 is installed on the linear guide rail 16 in a linear sliding manner to ensure linear sliding. At the same time, a protective cover 7 is provided above the linear guide rail 16, which is directly opposite to it in the upper and lower directions. The protective cover 7 is a channel steel structure with an opening facing downward to cover the corresponding linear guide rail 16, which plays a protective role on the one hand; on the other hand, the two grooves 1602 on both sides of the mounting seat 17 are respectively provided for the two opposite side walls of the protective cover 7 to be inserted and fixed, and then the installation and positioning of the linear slider 15 is realized very firmly and accurately, ensuring that it maintains a good linear sliding contact with the linear guide rail 16, and improving the accuracy of the sliding track of the automatic slide.

[0038] The above series of specific implementation details are merely some preferred embodiments of the present invention and cannot be used to limit the protection scope of the claims of the present invention. A person skilled in the art can simply change the design ideas based on the understanding of the above embodiments and the reference to the basic principles recorded in the claims of the present invention. However, these design changes still fall within the protection scope of the invention.

Claims

1. An automatic slide, comprising a guide member and a slide plate (1) mounted on the guide member for linear reciprocating movement, characterized in that: The guide component comprises a pair of parallel and spaced slide rails (10), a plurality of guide racks (8) connected in series and in a straight line are installed between the two slide rails (10) in parallel, a slide seat is provided above the two slide rails (10), the bottoms of the two opposite side walls of the slide seat are respectively linearly slidably matched with the corresponding slide rails (10), a power device (6) is installed on the upper surface of the slide seat, and an output gear (11) is installed on the lower surface, the output gear (11) is driven to rotate by the power device (6) and keeps meshing with the guide rack (8), and the front side of the slide seat is fixedly connected to the slide plate (1).

2. The automatic sliding platform according to claim 1, characterized in that: The slide seat also includes a mounting plate (2), the power device (6) is fixed on the upper surface of the mounting plate (2), and the output gear (11) is rotatably mounted on the lower surface of the mounting plate (2); a sliding sleeve (9) is fixed to the bottom of the two opposite sides of the mounting plate (2), and the sliding sleeve (9) is mounted on the slide rail (10) in a linear sliding manner, and a rubber pad (1205) is fixed on the side of the mounting plate (2) above the sliding sleeve (9), and elastic buffer components (12) are respectively installed at both ends of the slide rail (10), and the elastic buffer components (12) can be in elastic contact with the side of the mounting plate (2) when the movement reaches the limit.

3. The automatic sliding platform according to claim 2, characterized in that: The elastic buffer component (12) comprises a cylindrical shaft (1201), a sliding rod (1208), and a pressure spring (1203), wherein the cylindrical shaft (1201) is fixed in parallel with the slide rail (10) on a frame (5) on which the slide rail (10) is fixedly installed, the sliding rod (1208) is fixedly installed in the axial direction of the cylindrical shaft (1201), and a contact disk (1204) with a truncated cone structure is slidably mounted in the axial direction of the free end of the sliding rod (1208), and the large end surface of the contact disk (1204) is arranged toward the slide seat; The cylindrical shaft (1201) has an annular step at one end facing the sliding seat, one end of the pressure spring (1203) is coaxially fixedly mounted on the annular step, and the other end is coaxially connected and sleeved on the conical surface of the contact plate (1204) near its large end, so that it can move axially along the sliding rod (1208) together with the contact plate (1204).

4. The automatic sliding platform according to claim 3, characterized in that: The sliding seat has a notch on one side surface facing the cylindrical shaft (1201); the rubber pad (1205) is fixed on one side surface of the open end of the notch; a cylindrical hole is provided at the bottom center of the notch for the sliding rod (1208) to slide axially and insert; and when the contact plate (1204) and the bottom of the notch just start to contact, the rubber pad (1205) has not yet contacted a limit stopper (1206) fixed on the frame (5); when the rubber pad (1205) contacts the limit stopper (1206), the pressure spring (1203) still has not reached the compression limit.

5. The automatic sliding platform according to claim 4, characterized in that: The cylindrical shaft (1201) is fixed on a bearing block (1207) fixedly connected to the limit stop block (1206) as a whole, and a plurality of limit rings (1202) are coaxially fixed on the cylindrical surface of the cylindrical shaft (1201) near the annular step; the portion of the cylindrical shaft (1201) located inside the bearing block (1207) is axially slidably installed in the bearing block (1207) through a shoulder portion (1211) coaxially fixed to its surface, and is in compression contact with a heavy spring (1212) sleeved on the cylindrical shaft (1201) inside the bearing block (1207), and the distance between the limit ring (1202) and the bearing block (1207) is less than the axial length of the heavy spring (1212) that can still be compressed.

6. The automatic sliding platform according to claim 4, characterized in that: An annular boss (1213) protrudes from the inner wall of the cylindrical hole, and a first magnetic element (1209) is fixed in the cylindrical hole on the side of the annular boss (1213) facing away from the sliding rod (1208), and a second magnetic element (1210) is provided in the end of the sliding rod (1208) inserted into the cylindrical hole. When the sliding rod (1208) is inserted into the cylindrical hole, it can remain relatively motionless due to the mutual attraction of the two magnetic elements.

7. The automatic sliding platform according to claim 6, characterized in that: The first magnetic element (1209) is an electromagnet. When the rubber pad (1205) is in squeeze contact with the limit block (1206), a normally open power switch arranged on the limit block (1206) can be pressed to energize the electromagnet and cause the two magnetic elements to attract each other.

8. The automatic sliding platform according to claim 2, characterized in that: A connecting plate (13) is fixed to the bottom of one side of the slide plate (1), and the connecting plate (13) is fixed to the upper surface of the mounting plate (2) via a right-angle plate (14). One side of the slide plate (1) is also connected to a drag chain (3) via a Z-shaped drag plate, and the drag chain (3) is installed in a slide plate, which is arranged parallel to the slide rails (10) and is located outside the two slide rails (10).

9. The automatic sliding platform according to claim 2, characterized in that: A protective cover (4) having a [-shaped cross section is also provided on the outside of the guide rack (8), and the guide rack (8) is installed in the protective cover (4); an opening side of the protective cover (4) allows one side of the output gear (11) to extend into and mesh with the guide gear; a distance sensor is also provided above the protective cover (4), and the distance sensor is fixed to the bottom surface of the mounting plate (2) to detect whether the distance between the mounting plate (2) and the protective cover (4) changes during movement.

10. The automatic sliding platform according to claim 1, characterized in that: The slide plate (1) is fixed on a mounting frame, and the mounting frame includes a plurality of "X"-shaped mounting seats (17) located on both sides of the bottom, and a linear slider (15) is embedded and fixed in a groove (1601) in the middle of each mounting seat (17), and the linear slider (15) is installed on a linear guide rail (16) in a linear sliding manner. A protective cover (7) is provided above the linear guide rail (16) and is directly opposite to the linear guide rail (16). The protective cover (7) is a channel steel structure with an opening facing downward, and two grooves (1602) on both sides of the mounting seat (17) are respectively used for two opposite side walls of the protective cover (7) to be inserted and fixed.

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