Arc-shaped table driven by lead screw to do sinusoidal motion

Abstract

The utility model discloses an arc-shaped table driven by a screw rod to do sinusoidal motion, which comprises a sliding table base, a movable sliding table, the screw rod and a lifting guide rail assembly, the sliding table base is provided with a containing groove in the middle of an arc-shaped concave surface, and the sliding table base is provided with arc-shaped concave edges extending outwards on the two outer sides of the arc-shaped concave surface. Arc-shaped protrusions corresponding to the arc-shaped concave edges are arranged at the bottoms of the two sides of the movable sliding table, arc-shaped guide rails are arranged between the two arc-shaped protrusions and the sliding table base respectively, and the movable sliding table is in sliding connection with the sliding table base through the arc-shaped guide rails. The lead screws are arranged in parallel in the length direction of the arc-shaped concave face, one ends of the lead screws penetrate into the outer end face of the sliding table base and then are rotationally connected with the tail end face of the containing groove, and the other ends of the lead screws extend out of the sliding table base. According to the utility model, the movable sliding table does inclined motion according to a set arc, quick adjustment can be realized by adopting lead screw driving, the length and the diameter can be adjusted according to actual requirements, the structural design of a large-size sliding table is met, the load intensity is high, and the cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to arc slide technology field, more specifically, it relates to a kind of arc table of sine motion of screw rod drive. BACKGROUND

[0002] Common arc slide on market generally is equipped with base, movable slide and worm gear, movable slide is slidably installed on slide base, and rotating worm gear can drive movable slide to swing on base, to adjust the inclination angle of movable slide, such as patent authorized announcement No.CN221631755U, a kind of angle position table adjusting mechanism, including base, lead screw, flexible hinge, guide structure and adapter, its base is equipped with lead screw, lead screw is located between the guide structure of both sides, flexible hinge is connected on lead screw.The elastic deformation of the flexible hinge of this patent depends on material strength, and the stability is insufficient, when load exceeds the elastic limit of material, permanent deformation will be produced, resulting in angle adjustment failure or precision decline.

[0003] In addition, the traditional slide still has the following problems: 1, the driving part of most slides is worm gear, and the moving distance of the table is short when the knob rotates one circle, the adjustment speed is slow, and the number of teeth is limited by the structure of worm gear and the size of the mold, so the cost is high, and the size is small, so it is difficult to realize large size design, and it cannot meet the demand of large span, large load slide of equipment;2, part of the slide adopts micrometer for adjustment, but the volume of micrometer is large and easy to be exposed, which occupies a lot of space, and the swing amplitude is small due to the stroke limit of micrometer, so it cannot meet the demand of large angle swing;3, part of the slide lacks guide rail design, and it is difficult to ensure the direction accuracy in the process of movement, and it is easy to appear deviation when bearing large load or carrying out high-precision operation, which affects the position accuracy and stability. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the above-mentioned defects in the prior art, and provides an arc table of sine motion of screw rod drive, which can meet the structural design of large size slide, has fast adjustment speed, high load strength and low cost.

[0005] To achieve the above objectives, this utility model provides an arc-shaped platform driven by a lead screw to perform sinusoidal motion, including a slide base, a movable slide, a lead screw, and lifting guide rail assemblies. The top of the slide base is provided with an arc-shaped concave surface, and a receiving groove is provided in the middle of the arc-shaped concave surface. The slide base has outwardly extending arc-shaped concave edges on both outer sides of the arc-shaped concave surface. The bottom of both sides of the movable slide has arc-shaped protrusions corresponding to the arc-shaped concave edges. Arc-shaped guide rails are respectively provided between the two arc-shaped protrusions and the slide base. The movable slide is slidably connected to the slide base through the arc-shaped guide rails. The lead screw is arranged parallel to the length direction of the arc-shaped concave surface, with one end passing through the outer end face of the slide base and rotatably connected to the end face of the receiving groove. The other end of the lead screw extends out of the slide base. There are two lifting guide rail assemblies, both located in the receiving groove. Both lifting guide rail assemblies are rotatably connected to both sides of the nut seat threaded on the lead screw. The lifting parts of both lifting guide rail assemblies are fixedly connected to the inner end face of the movable slide.

[0006] Preferably, the arc-shaped guide rail includes a first roller, an arc-shaped guide plate, and an arc-shaped sliding plate. The arc-shaped guide plate consists of two pieces, which are respectively fixedly embedded between the arc-shaped concave surface and the arc-shaped concave edge and are on the same arc surface as the arc-shaped concave surface. The outer side walls of the two arc-shaped guide plates are respectively provided with base arc-shaped guide grooves containing a plurality of first rollers. The arc-shaped sliding plate consists of two pieces, with their tops respectively fixed to the inner end face of the movable slide and abutting against the inner side wall of the arc-shaped protrusion. The bottom edge of the inner side wall of the two arc-shaped sliding plates is respectively provided with slide arc-shaped guide grooves. The movable slide makes rolling contact with the first rollers built into the base arc-shaped guide grooves of the arc-shaped guide plate through the slide arc-shaped guide grooves on the arc-shaped sliding plate, thereby realizing a sliding connection with the slide base.

[0007] Preferably, the first roller is configured as a cross roller, a cylindrical roller, or a ball.

[0008] Preferably, each of the lifting guide rail assemblies includes a rotary bearing, a guide plate, a lifting slider, a lifting slide rail, and second rollers. The back of the guide plate is rotatably connected to both sides of the nut seat via the rotary bearing. The back of the lifting slide rail is fixedly connected to the front of the guide plate. The two side walls of the lifting slide rail are provided with first grooves containing a plurality of second rollers. The two inner side walls of the lifting slider are provided with second grooves corresponding to the first grooves. The lifting slider makes rolling contact with the second rollers in the first grooves through the second grooves, thereby achieving a sliding connection with the lifting slide rail.

[0009] Preferably, the second roller is configured as a cross roller, a cylindrical roller, or a ball.

[0010] Preferably, the system also includes a lead screw drive device, the output of which is connected to the other end of the lead screw extending from the slide base. The lead screw drive device can be configured as an electric drive device or a manual drive device.

[0011] Preferably, the electric drive device includes a coupling and a lead screw drive motor, wherein the output shaft of the lead screw drive motor is connected to the other end of the lead screw extending out of the slide base via the coupling.

[0012] Preferably, the manual drive device is configured as an adjusting handwheel or knob that is fixedly connected to the other end of the lead screw extending from the slide base.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model features a novel structure and a reasonable design. By rotating a lead screw and converting its rotational motion into the movement of a lifting guide rail assembly and a movable slide along the axial direction of the lead screw, the movable slide can tilt in a predetermined arc. Compared to traditional slides that use worm gears or micrometer drive structures, the lead screw drive allows for rapid adjustment. Its length and diameter can be adjusted according to actual needs, enabling a large-span travel distance and meeting the structural design requirements of large-size slides. Furthermore, the added lifting guide rail assembly solves the problem of the movable slide being unable to move up and down when tilted forward and backward. It also prevents misalignment when bearing large loads or performing high-precision operations, ensuring stable and reliable operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the arc-shaped platform driven by the lead screw to perform sinusoidal motion according to an embodiment of the present invention;

[0017] Figure 2 This is an exploded view of the arc-shaped platform driven by a lead screw to perform sinusoidal motion, as provided in this embodiment of the utility model. Figure 1 ;

[0018] Figure 3 This is an exploded view of the arc-shaped platform driven by a lead screw to perform sinusoidal motion, as provided in this embodiment of the utility model. Figure 2 ;

[0019] Figure 4This is a partial structural schematic diagram of the arc-shaped platform driven by a lead screw to perform sinusoidal motion according to an embodiment of this utility model;

[0020] Figure 5 This is an exploded enlarged schematic diagram of the lifting guide rail assembly of the arc-shaped platform driven by a lead screw to perform sinusoidal motion, provided in an embodiment of this utility model.

[0021] Figure 6 This is an exploded schematic diagram of the movable slide of the arc-shaped platform that performs sinusoidal motion driven by a lead screw, as provided in an embodiment of this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Please refer to Figure 1 The present invention provides an arc-shaped platform driven by a lead screw to perform sinusoidal motion, including a slide base 1, a movable slide 2, a lead screw 3, a lifting guide rail assembly 4, and other components. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown, the top of the slide base 1 can be provided with an arc-shaped concave surface 11. The slide base 1 has a receiving groove 110 in the middle of the arc-shaped concave surface 11. The slide base 1 has outwardly extending arc-shaped concave edges 12 on both outer sides of the arc-shaped concave surface 11. The bottom of both sides of the movable slide 2 has arc-shaped protrusions 21 corresponding to the arc-shaped concave edges 12. Arc-shaped guide rails 5 are respectively provided between the two arc-shaped protrusions 21 and the slide base 1. The movable slide 2 is slidably connected to the slide base 1 through the arc-shaped guide rails 5. The lead screw 3 is arranged parallel to the length direction of the arc-shaped concave surface 11 and one end of it is inserted into the outer end face of the slide base 1 and rotatably connected to the end face of the receiving groove 110. The other end of the lead screw 3 extends out of the slide base 1.

[0025] like Figure 3 and Figure 4As shown, the arc-shaped guide rail 5 may include a first roller 51, an arc-shaped guide plate 52, and an arc-shaped slide plate 53. The arc-shaped guide plate 52 has two pieces and is fixedly embedded between the arc-shaped concave surface 11 and the arc-shaped concave edge 12, and is on the same arc surface as the arc-shaped concave surface 11. The outer side walls of the two arc-shaped guide plates 52 are respectively provided with base arc-shaped guide grooves 521 for housing several first rollers 51. The arc-shaped slide plate 53 has two pieces and its top is respectively fixed to the inner end face of the movable slide table 2 and abuts against the inner side wall of the arc-shaped protrusion 21. The bottom edge of the inner side wall of the two arc-shaped slide plates 53 is respectively provided with slide table arc-shaped guide grooves 531. The movable slide table 2 rolls and contacts the first rollers 51 built into the base arc-shaped guide grooves 521 of the arc-shaped guide plate 52 through the slide table arc-shaped guide grooves 531 opened on the arc-shaped slide plate 53, thereby realizing the sliding connection with the slide table base 1.

[0026] In this embodiment, rolling contact replaces traditional sliding friction, which can reduce wear. The first roller 515 can be configured as a cross roller, cylindrical roller or ball, and this embodiment does not limit its type.

[0027] Among them, the slide base 11 is the basic support component of the entire arc-shaped platform. The arc-shaped concave surface 1111 on its top provides a predetermined motion track for the movable slide 22, enabling the movable slide 22 to move along a specific arc-shaped trajectory. The top of the movable slide 2 provides an installation plane for the load. Several first rollers 515 are installed in the arc-shaped guide groove 521 of the base of the arc-shaped guide plate 52, and roll in contact with the arc-shaped guide groove 531 of the arc-shaped slide plate 53 fixed on the movable slide 22, reducing friction and improving the smoothness of the movement and adjustment speed of the movable slide 22. The movable slide 2 and the two arc-shaped slide plates 53 are easy to process and assemble, and also enhance the overall strength and stability of the movable slide 2, making it suitable for the production and manufacturing of large-size slides. The lifting guide rail assembly 46 ensures the directional accuracy and stability of the movable slide 22 during the lifting process.

[0028] In this embodiment, a lead screw 3 is used instead of the traditional worm gear drive. Lead screw drive is not limited by the size constraints of a worm gear structure, resulting in a longer single-turn travel distance and faster adjustment speed. In large-scale designs, the length and diameter of the lead screw can be adjusted according to actual needs, easily achieving large-span motion strokes and meeting the design requirements of large-size slide tables. Simultaneously, the lead screw drive has strong load capacity, and the threaded engagement allows for precise control. Even with increasing size, it can reliably bear heavy loads, ensuring the normal operation of large-size slide tables.

[0029] In this embodiment, two lifting guide rail assemblies 4 can be provided and both are located in the receiving groove 110. Both lifting guide rail assemblies 4 are rotatably connected to both sides of the nut seat 31 threaded on the lead screw 3. The lifting parts of both lifting guide rail assemblies 4 are fixedly connected to the inner end face of the movable slide 2.

[0030] like Figure 5 and Figure 6 As shown, each lifting guide rail assembly 4 may include a rotating bearing 41, a guide plate 42, a lifting slider 43, a lifting slide rail 44, and second rollers 45. The back of the guide plate 42 is rotatably connected to both sides of the nut seat 31 via the rotating bearing 41. The back of the lifting slide rail 44 is fixedly connected to the front of the guide plate 42. The two side walls of the lifting slide rail 44 are provided with first grooves 441 containing a plurality of second rollers 45. The two inner side walls of the lifting slider 43 are provided with second grooves 431 corresponding to the first grooves 441. The lifting slider 43 rolls in contact with the second rollers 45 in the first grooves 441 through the second grooves 431, thereby achieving a sliding connection with the lifting slide rail 44.

[0031] Furthermore, the second roller 45 can also be configured as a cross roller, cylindrical roller, or ball; this embodiment does not limit its type.

[0032] In this embodiment, a lead screw drive device 6 may also be included. The output part of the lead screw drive device 6 is connected to the other end of the lead screw 3 extending out of the slide base 1. The lead screw drive device 6 is configured as an electric drive device or a manual drive device, and the drive device used can be adjusted according to actual needs.

[0033] Specifically, the electric drive device may include a coupling 61 and a lead screw drive motor 62. The output shaft of the lead screw drive motor 62 is connected to the other end of the lead screw 3 extending out of the slide base 1 through the coupling 61. In this embodiment, an electric drive device is preferably used, which realizes automated and precise drive control and can be applied to occasions with high motion accuracy and speed requirements.

[0034] Preferably, the manual drive device can be set as an existing manual rotating component such as an adjustment handwheel or knob that is fixedly connected to the other end of the lead screw 3 extending out of the slide base 1. It can directly drive the lead screw 3 to rotate, which is simple to operate and convenient for manual adjustment in some simple scenarios.

[0035] In practice, the lead screw 33 is driven to rotate by the lead screw drive device 64. The lead screw 33 is connected to the nut seat 31 by the thread, which can convert its rotational motion into the axial motion of the nut seat 31. This, in turn, drives the lifting guide rail assembly 46 and the movable slide 22 to move along the axial direction of the lead screw 33, so that the movable slide 22 can tilt in a set arc.

[0036] In summary, this utility model uses a lead screw drive to achieve rapid adjustment. Its length and diameter can be adjusted according to actual needs, enabling a large-span movement stroke and meeting the structural design requirements of large-size slides. In addition, the added lifting guide rail assembly solves the problem of the movable slide being unable to move up and down when tilted forward and backward. When bearing a large load or performing high-precision operations, it can also avoid deviation, ensuring stable and reliable operation.

[0037] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A radial table driven by a lead screw to perform a sinusoidal motion, characterized by: The utility model provides a lifting device, including slide base, movable slide, screw rod, lifting guide rail assembly, the top of slide base is provided with arc concave surface, the middle part of arc concave surface is equipped with accommodating groove in slide base, the both sides of arc concave surface on slide base are equipped with the outward extension of arc concave edge, the both sides bottom of movable slide are equipped with the arc convex of corresponding with arc concave edge, and the arc convex is equipped with arc guide rail between two respectively, and movable slide realizes the sliding connection with slide base through arc guide rail, and the length direction parallel of arc concave surface is equipped with screw rod and makes its one end pass into the outer end surface of slide base and rotate with the terminal surface of accommodating groove, and the other end of screw rod is stretched out in slide base, and lifting guide rail assembly is equipped with two and is located in accommodating groove, and two lifting guide rail assemblies are rotatably connected with the both sides of nut seat screwing on screw rod, and the lifting parts of two lifting guide rail assemblies are fixedly connected with the inner end surface of movable slide.

2. The arc table driven by a lead screw to perform a sinusoidal motion according to claim 1, wherein: The arc guide rail includes first rollers, arc guide plates, and arc sliding plates. The arc guide plates are fixedly embedded between the arc concave surface and the arc concave edge and are on the same arc surface as the arc concave surface. The outer sidewalls of the two arc guide plates are respectively provided with seat arc guide grooves in which a plurality of first rollers are embedded. The arc sliding plates are fixedly connected to the inner end surfaces of the movable slide and are located on the inner sidewalls of the arc convexes. The inner sidewall bottom edges of the two arc sliding plates are respectively provided with slide arc guide grooves. The movable slide is in rolling contact with the first rollers in the seat arc guide grooves of the arc guide plates through the slide arc guide grooves in the arc sliding plates, thereby realizing the sliding connection with the slide base.

3. The arced table driven by a lead screw performing sinusoidal motion according to claim 2, wherein: The first rollers are cross rollers, cylindrical rollers, or balls.

4. The arced table driven by a lead screw performing sinusoidal motion according to claim 1, wherein: The lifting guide rail assembly includes rotating bearings, guide vertical plates, lifting sliders, lifting sliding rails, and second rollers. The guide vertical plates are rotatably connected to the both sides of the nut seat through the rotating bearings. The lifting sliding rails are fixedly connected to the front surfaces of the guide vertical plates. The both sidewalls of the lifting sliding rails are respectively provided with first sliding grooves in which a plurality of second rollers are embedded. The both inner sidewalls of the lifting sliders are respectively provided with second sliding grooves corresponding to the first sliding grooves. The lifting sliders are in rolling contact with the second rollers in the first sliding grooves through the second sliding grooves, thereby realizing the sliding connection with the lifting sliding rails.

5. The arced table driven by a lead screw performing sinusoidal motion according to claim 4, wherein: The second rollers are cross rollers, cylindrical rollers, or balls.

6. The arced table driven by a lead screw performing sinusoidal motion according to claim 1, wherein: The utility model also includes a screw rod driving device. The output part of the screw rod driving device is drivingly connected to the other end of the screw rod that is stretched out of the slide base. The screw rod driving device is an electric driving device or a manual driving device.

7. The arced table driven by a lead screw performing sinusoidal motion according to claim 6, wherein: The electric driving device includes a coupling and a screw rod driving motor. The output shaft of the screw rod driving motor is drivingly connected to the other end of the screw rod that is stretched out of the slide base through the coupling.

8. The arced table driven by a lead screw performing sinusoidal motion according to claim 6, wherein: The manual driving device is an adjusting hand wheel or a knob that is fixedly connected to the other end of the screw rod that is stretched out of the slide base.

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