High-stability slide table

Abstract

The application relates to the technical field of sliding tables, and discloses a high-stability sliding table which comprises a base, a motor, a screw rod, first guide rails and a table top. The base comprises a bottom plate, two first square rods, two second square rods and two side plates, the two first square rods are fixedly connected to the two end portions of the front side of the bottom plate respectively, the two second square rods are fixedly connected to the two end portions of the rear side of the bottom plate respectively, the two side plates are fixedly connected to the left side and the right side of the bottom plate respectively, and are fixedly connected with one first square rod and one second square rod respectively; the two first guide rails are installed on the two first square rods respectively, the motor drives the screw rod to rotate, and the table top moves along the two first guide rails. The high-stability sliding table disclosed by the application forms a frame type base structure through the bottom plate, the first square rods, the second square rods and the side plates, so that the base has high overall rigidity and deformation resistance, and is especially suitable for operation requirements under long-stroke working conditions.

Description

Technical Field

[0001] This invention relates to the field of slide table technology, and in particular to a highly stable slide table. Background Technology

[0002] As a fundamental linear motion actuator in automated equipment, the slide table is widely used in laser processing equipment, CNC machine tools, and automated material handling systems. Its main function is to achieve high-precision linear movement of the workpiece or processing head within a predetermined stroke range. Existing slide tables typically employ a structure in which a motor drives a screw or synchronous belt to move the table surface reciprocating on a guide rail to achieve position control and motion transmission.

[0003] However, existing long-stroke slide tables generally suffer from insufficient base rigidity and weak torsional resistance, making them prone to bending or torsional deformation during reciprocating motion. This affects the linear accuracy and repeatability of the table movement. Under eccentric or inertial loads, uneven stress distribution in the structure can easily lead to localized deformation and vibration amplification, resulting in increased wear between the slider and the guide rail and decreased operational stability. Summary of the Invention

[0004] The present invention aims to improve at least one technical problem in the prior art.

[0005] The present invention provides a highly stable slide table, comprising: a base, a motor, a screw, a first guide rail, and a table surface; The base includes a base plate, two first square bars, two second square bars, and two side plates. The two first square bars, two second square bars, and two side plates extend along the length of the base plate. The base plate has four sides. The two first square bars are fixedly connected to the two ends of the front side of the base plate. The front and rear sides of the base plate are opposite to each other. The two second square bars are fixedly connected to the two ends of the rear side of the base plate. The two side plates are fixedly connected to the left and right sides of the base plate and are fixedly connected to a corresponding first square bar and a corresponding second square bar. The fixed end of the motor is mounted on the base plate. There are two first guide rails, which are respectively mounted on the side of the two first square bars away from the base plate. The screw is rotatably mounted on the front side of the base plate and located between the two first guide rails. The main shaft of the motor is drivenly connected to the screw, and the screw is drivenly connected to the platform. The platform is slidably connected to the two first guide rails. The motor drives the screw to rotate, so that the platform moves along the two first guide rails.

[0006] As a further improvement to the above technical solution, the base also includes a plurality of reinforcing plates, each of which is connected to the rear side of the base plate and to the side of the two second square bars that is close to the other second square bar.

[0007] As a further improvement to the above technical solution, the bottom of the front side of the base plate is provided with a mounting hole for mounting a laser cutting assembly.

[0008] As a further improvement to the above technical solution, the high-stability slide table also includes a plurality of first sliders, which are divided into two groups. Each group of first sliders is slidably connected to a first guide rail and connected to the table surface.

[0009] As a further improvement to the above technical solution, there are six first sliders, and three first sliders in each group.

[0010] As a further improvement to the above technical solution, the high-stability slide also includes a second guide rail, which is mounted on one of the side plates away from the base plate, and the table surface is slidably connected to the second guide rail.

[0011] As a further improvement to the above technical solution, the high-stability slide table also includes two second sliders, which are slidably connected to the second guide rail and connected to the table surface.

[0012] As a further improvement to the above technical solution, the two side plates are respectively provided with mounting surfaces on the side away from the base plate, and the mounting surfaces are used to install the second guide rail.

[0013] As a further improvement to the above technical solution, the high-stability slide also includes a nut, a bearing seat, and a limiting block. The table surface is fixedly connected to the nut, and the nut is threadedly connected to the screw. There are two bearing seats, which are respectively installed on the front side of the base plate. The screw is rotatably connected to the two bearing seats through bearings. There are two limiting blocks, each of which is installed on the side of one bearing seat close to the other bearing seat. Each limiting block is used to limit the movement stroke of the nut.

[0014] The beneficial effects of this invention are as follows: The highly stable slide table provided by this invention forms a frame-type base structure through a base plate, a first square bar, a second square bar, and side plates. This gives the base high overall rigidity and resistance to deformation, making it particularly suitable for operation under long-stroke conditions. Two first guide rails are respectively mounted on two first square bars. A motor-driven screw moves the table surface along the guide rails, ensuring smooth linear feed while maintaining motion accuracy. The first and second square bars on both sides are interconnected with the side plates to form a closed frame structure, allowing the load to be distributed and transferred through multiple paths among the base plate, first square bars, second square bars, and side plates. This effectively suppresses torsional deformation of the base under high-speed movement or off-center load conditions, reduces relative positional offset of the guide rails on both sides, thereby ensuring guiding consistency and linear accuracy during table operation, and improving the overall vibration resistance and operational stability of the system. Attached Figure Description

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the isometric views of an embodiment of the high-stability slide table of the present invention; Figure 2 This is an isometric view of an embodiment of the base of the present invention; Figure 3 This is an isometric view of a portion of the structure of the high-stability slide table embodiment of the present invention; Figure 4 This is the second isometric view of an embodiment of the high-stability slide table of the present invention.

[0016] In the attached diagram: 11-base plate; 12-first square bar; 13-second square bar; 14-side plate; 141-mounting surface; 15-reinforcing plate; 16-mounting hole; 21-motor; 22-screw; 221-bearing seat; 31-first guide rail; 32-second guide rail; 33-first slider; 34-second slider; 4-table; 41-nut; 5-limiting block. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] The following is combined Figures 1 to 4 Embodiments of the present invention will be described.

[0019] Reference Figure 1 and Figure 2This embodiment relates to a highly stable slide table, including: a base, a motor 21, a screw 22, a first guide rail 31, and a table surface 4; The base includes a base plate 11, two first square bars 12, two second square bars 13, and two side plates 14. The two first square bars 12, the two second square bars 13, and the two side plates 14 extend along the length of the base plate 11. The base plate 11 has four sides. The two first square bars 12 are fixedly connected to the two ends of the front side of the base plate 11, and the front and rear sides of the base plate 11 are opposite to each other. The two second square bars 13 are fixedly connected to the two ends of the rear side of the base plate 11. The two side plates 14 are fixedly connected to the left and right sides of the base plate 11, and are fixedly connected to a corresponding first square bar 12 and a second square bar 13, respectively. The fixed end of the motor 21 is mounted on the base plate 11. There are two first guide rails 31, which are respectively mounted on the side of the two first square bars 12 away from the base plate 11. The screw 22 is rotatably mounted on the front side of the base plate 11 and located between the two first guide rails 31. The main shaft of the motor 21 is drivenly connected to the screw 22. The screw 22 is drivenly connected to the platform 4. The platform 4 is slidably connected to the two first guide rails 31. The motor 21 drives the screw 22 to rotate, so that the platform 4 moves along the two first guide rails 31.

[0020] In this embodiment, the highly stable slide table forms a frame-type base structure through the base plate 11, the first square bar 12, the second square bar 13, and the side plate 14. This gives the base high overall rigidity and resistance to deformation, making it particularly suitable for operation under long-stroke conditions. Two first guide rails 31 are respectively installed on the two first square bars 12. The motor 21 drives the screw 22 to move the table 4 along the guide rails, ensuring smooth linear feed while maintaining motion accuracy. The first square bars 12 and the second square bars 13 on both sides are connected to the side plate 14 to form a closed frame structure. This allows the load to be distributed and transferred through multiple paths among the base plate 11, the first square bars 12, the second square bars 13, and the side plate 14, effectively suppressing torsional deformation of the base under high-speed motion or off-center load conditions, reducing the relative positional offset of the guide rails on both sides, thereby ensuring the guiding consistency and linear accuracy of the table 4 during operation, and improving the overall vibration resistance and operational stability of the system.

[0021] Specifically, the base is a frame structure formed by welding or bolting together a base plate 11, two first square bars 12, two second square bars 13, and two side plates 14. The two first square bars 12 are fixed to the two ends of the front side of the base plate 11, and the two second square bars 13 are fixed to the two ends of the rear side of the base plate 11. The two side plates 14 connect the base plate 11, the first square bars 12, and the second square bars 13 respectively, forming a closed load-bearing structure. A motor 21 is mounted on the base plate 11, and its output shaft is connected to a screw 22 via a coupling. The screw 22 is arranged between two first guide rails 31 along the length of the slide table. A transmission mechanism that cooperates with the screw 22 is provided at the bottom of the table surface 4 and is slidably connected to the base via the guide rails. When the motor 21 starts, it drives the screw 22 to rotate, converting the rotational motion into linear motion of the table surface 4, causing the table surface 4 to reciprocate along the guide rails, thereby adjusting the position of the workpiece or processing head.

[0022] Reference Figure 2 In some embodiments, the base further includes a plurality of reinforcing plates 15, each of the reinforcing plates 15 being connected to the rear side of the base plate 11 and respectively connected to the side of the two second square bars 13 near the other second square bar 13.

[0023] In this embodiment, multiple reinforcing plates 15 are disposed on the rear side of the base plate 11, connecting two second square bars 13, which can further improve the bending strength and torsional strength of the base structure. When the slide table is subjected to a large load or inertial force generated by high-speed movement, the reinforcing plates 15 can disperse the stress and reduce the deformation of the connection between the second square bars 13 and the base plate 11, thereby improving the overall stability and positioning accuracy of the slide table.

[0024] Specifically, multiple reinforcing plates 15 are arranged at intervals along the length of the slide table, and each reinforcing plate 15 is connected to the rear side of the base plate 11 and two second square bars 13. The reinforcing plates 15 can be rectangular plates. During the operation of the slide table, the load from the guide rail and the table surface 4 is transmitted to the base plate 11 through the first square bar 12, and then dispersed by the reinforcing plates 15, thereby reducing local stress concentration and improving the overall load-bearing capacity.

[0025] Reference Figure 2 In some embodiments, the bottom of the front side of the base plate 11 is provided with a mounting hole 16 for mounting a laser cutting assembly.

[0026] In this embodiment, a laser cutting component can be installed by providing a mounting hole 16 at the bottom of the front side of the base plate 11, enabling the slide table to function as a motion platform for laser cutting equipment. The mounting hole 16 provides a standardized installation interface, facilitating the disassembly, replacement, and maintenance of the laser component, thereby improving the applicability and expandability of the equipment.

[0027] Specifically, the bottom of the front side of the base plate 11 has a pre-set mounting hole 16, which can be a threaded hole or a through hole. In use, the laser cutting assembly is fixed to the mounting hole 16, and a reliable connection is achieved through bolts or other means. During the movement of the slide, the laser cutting assembly moves synchronously with the base or is fixed in a designated position, realizing relative movement between the workpiece and the laser head, thereby completing the cutting process.

[0028] Reference Figure 4 In some embodiments, the highly stable slide table further includes a plurality of first sliders 33, which are divided into two groups. Each group of first sliders 33 is slidably connected to a first guide rail 31 and connected to the table surface 4.

[0029] In this embodiment, two sets of first sliders 33 are respectively engaged with two first guide rails 31 to form a multi-point support structure, reducing the shaking and tilting of the platform 4 during operation and improving guiding accuracy and load-bearing capacity. Especially when the platform 4 is subjected to eccentric loads, multiple sliders can evenly distribute the load, reducing the wear of individual sliders.

[0030] Specifically, multiple first sliders 33 are installed at the bottom of the platform 4, with two sets of sliders corresponding to two first guide rails 31 respectively. Each set of sliders is spaced apart along the length of the guide rail. The platform 4 can be fixedly connected to each of the first sliders 33 by bolts. When the platform 4 moves, each slider slides synchronously on the guide rail, thereby ensuring the stability of the movement trajectory of the platform 4 and reducing swaying.

[0031] Reference Figure 4 In some embodiments, there are six first sliders 33, and three first sliders 33 in each group.

[0032] In this embodiment, each group is equipped with three first sliders 33, which allows the platform 4 to form a longer support span in the direction of movement, further improving the anti-pitch and anti-tipping capabilities and enhancing the stability of the slide table. When the slide table bears a large load, the six sliders share the force, which can improve the service life of the guide rail system.

[0033] Specifically, six first sliders 33 are distributed on two first guide rails 31, with three sliders on each guide rail. The three sliders are arranged sequentially along the length of the guide rail. During operation, the load is evenly transmitted to the guide rail through multiple sliders, reducing local contact stress and improving motion stability.

[0034] Reference Figure 4 In some embodiments, the highly stable slide table further includes a second guide rail 32, which is mounted on one of the side plates 14 away from the base plate 11, and the table surface 4 is slidably connected to the second guide rail 32.

[0035] In this embodiment, by adding a second guide rail 32 to the side plate 14, the slide table forms a three-rail support structure. The second guide rail 32, together with the two first guide rails 31, constitutes a three-dimensional guiding system, which can further improve the guiding accuracy and anti-eccentric load capacity of the table 4 during long-stroke movement. When the laser cutting head is mounted on the table 4 and generates an eccentric load, the second guide rail 32 can share part of the load, reduce the shaking of the table 4, and improve the cutting stability.

[0036] Specifically, the second guide rail 32 is mounted on one of the side plates 14 and is arranged parallel to the first guide rail 31. A connection structure that mates with the second guide rail 32 is provided on the side of the platform 4. During operation, the second guide rail 32 constrains the lateral movement of the platform 4, forming a spatial guiding system together with the two first guide rails 31, thereby improving motion accuracy.

[0037] Reference Figure 4 In some embodiments, the highly stable slide table further includes two second sliders 34, which are slidably connected to the second guide rail 32 and connected to the table surface 4.

[0038] In this embodiment, two second sliders 34 are provided to cooperate with the second guide rail 32, which can improve the guiding effect of the second guide rail 32 and reduce the lateral swaying or local jamming of the platform 4 during the movement, thereby further improving the overall running stability.

[0039] Specifically, two second sliders 34 are spaced apart and mounted on the side of the platform 4, and are slidably engaged with the second guide rails 32 respectively. The second sliders 34 are fixedly connected to the platform 4 with bolts. When the platform 4 moves along the guide rails, the two second sliders 34 slide synchronously on the second guide rails 32, thereby forming a stable guiding support.

[0040] Reference Figure 2 In some embodiments, the two side plates 14 are provided with mounting surfaces 141 on the side away from the base plate 11, and the mounting surfaces 141 are used to mount the second guide rail 32.

[0041] In this embodiment, both side plates 14 are provided with mounting surfaces 141 for mounting the second guide rail 32, allowing the second guide rail 32 to be installed on either side according to the equipment layout requirements. This structure improves the versatility and interchangeability of the slide table, making it suitable for both left and right mirror structure equipment, which helps reduce production costs and the types of spare parts.

[0042] Specifically, both side plates 14 are machined to form mounting surfaces 141 for installing guide rails, with corresponding holes. The two mounting surfaces 141 have the same structural dimensions and correspond to each other. When applied to different models of equipment, one mounting surface 141 can be selected to install the second guide rail 32 according to the equipment layout requirements, while the other mounting surface 141 serves as a spare mounting position. For laser tube cutting machines with left-right mirrored arrangements, only the installation position of the second guide rail 32 needs to be adjusted to achieve adaptation, without the need to redesign the main structure of the slide table, thereby improving product versatility.

[0043] Reference Figure 3 In some embodiments, the highly stable slide table further includes a nut 41, a bearing seat 221, and a limiting block 5. The table surface 4 is fixedly connected to the nut 41, and the nut 41 is threadedly connected to the screw 22. There are two bearing seats 221, which are respectively installed on the front side of the base plate 11. The screw 22 is rotatably connected to the two bearing seats 221 through bearings. There are two limiting blocks 5, each of which is installed on the side of one bearing seat 221 close to the other bearing seat 221. Each limiting block 5 is used to limit the travel of the nut 41.

[0044] In this embodiment, the limiting block 5 can limit the movement of the nut 41, prevent the table 4 from exceeding the designed stroke, and improve the safety of equipment operation.

[0045] Specifically, two bearing seats 221 are respectively mounted on the base plate 11, providing support and positioning for both ends of the screw 22. A nut 41 is fixedly mounted on the bottom of the platform 4, with its internal thread engaging with the external thread of the screw 22. When the motor 21 drives the screw 22 to rotate, the nut 41 moves axially along the screw 22, causing the platform 4 to move synchronously. Two limit blocks 5 are respectively mounted on opposite sides of the two bearing seats 221. When the nut 41 moves to a preset limit position, it contacts the limit block 5, thus preventing further movement and reducing the risk of mechanical impact or detachment from the guide rail. Throughout the process, the bearing seats 221 ensure stable rotation of the screw 22, and the limit blocks 5 ensure that the movement stroke remains within a safe range.

[0046] The preferred embodiments of the present invention have been described in detail above, but the present disclosure is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present disclosure.

[0047] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0048] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

Claims

1. A highly stable slide table, characterized in that, include: Base, motor (21), screw (22), first guide rail (31) and table (4); The base includes a base plate (11), two first square bars (12), two second square bars (13), and two side plates (14). The two first square bars (12), the two second square bars (13), and the two side plates (14) extend along the length of the base plate (11). The base plate (11) has four sides. The two first square bars (12) are fixedly connected to the two ends of the front side of the base plate (11). The front and rear sides of the base plate (11) are opposite to each other. The two second square bars (13) are fixedly connected to the two ends of the rear side of the base plate (11). The two side plates (14) are fixedly connected to the left and right sides of the base plate (11) and are fixedly connected to a corresponding first square bar (12) and a second square bar (13). The fixed end of the motor (21) is mounted on the base plate (11). There are two first guide rails (31). The two first guide rails (31) are respectively mounted on the side of the two first square bars (12) away from the base plate (11). The screw (22) is rotatably mounted on the front side of the base plate (11) and located between the two first guide rails (31). The main shaft of the motor (21) is connected to the screw (22) in a transmission connection. The screw (22) is connected to the table (4) in a transmission connection. The table (4) is slidably connected to the two first guide rails (31). The motor (21) drives the screw (22) to rotate, so that the table (4) moves along the two first guide rails (31).

2. The high-stability slide table according to claim 1, characterized in that: The base also includes a plurality of reinforcing plates (15), each of which is connected to the rear side of the base plate (11) and to the side of the two second square bars (13) close to the other second square bar (13).

3. The high-stability slide table according to claim 1, characterized in that: The bottom of the front side of the base plate (11) is provided with a mounting hole (16) for mounting a laser cutting assembly.

4. The high-stability slide table according to claim 1, characterized in that: The high-stability slide also includes a plurality of first sliders (33), which are divided into two groups. Each group of first sliders (33) is slidably connected to a first guide rail (31) and connected to the table surface (4).

5. The high-stability slide table according to claim 4, characterized in that: There are six first sliders (33), and three first sliders (33) in each group.

6. The high-stability slide table according to claim 1, characterized in that: The high-stability slide also includes a second guide rail (32), which is mounted on one of the side plates (14) away from the base plate (11), and the table surface (4) is slidably connected to the second guide rail (32).

7. The high-stability slide table according to claim 6, characterized in that: The high-stability slide also includes two second sliders (34), which are slidably connected to the second guide rail (32) and connected to the table surface (4).

8. The high-stability slide table according to claim 6, characterized in that: The two side plates (14) are provided with mounting surfaces (141) on the side away from the base plate (11), and the mounting surfaces (141) are used to mount the second guide rail (32).

9. The high-stability slide table according to claim 1, characterized in that: The high-stability slide also includes a nut (41), a bearing seat (221), and a limiting block (5). The table surface (4) is fixedly connected to the nut (41), and the nut (41) is threadedly connected to the screw (22). There are two bearing seats (221), which are respectively installed on the front side of the base plate (11). The screw (22) is rotatably connected to the two bearing seats (221) through bearings. There are two limiting blocks (5), each of which is installed on the side of one bearing seat (221) close to the other bearing seat (221). Each limiting block (5) is used to limit the movement stroke of the nut (41).

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