Small-size large-stroke linear guide rail structure lifting fine adjustment table

Abstract

The utility model relates to fine adjustment platform technical field discloses a small size big stroke linear guide rail structure lifting fine adjustment platform, including motor screw rod module, fine adjustment platform seat body, the first slide rail group is horizontally established on fine adjustment platform seat body, and the first slide rail group is equipped with the connecting seat that horizontally slides with it synchronization, and the second slide rail group is obliquely equipped on connecting seat, and is equipped with the lifting seat that slides and lifts with the second slide rail group synchronization, and motor screw rod module drives connecting seat and carries out reciprocating motion to make the lifting seat with the second slide rail group and slide up and down, and the compact structure and big stroke lifting adjustment is realized through double -deck slide rail combination. The first slide rail group that sets up on its fine adjustment platform seat body realizes the horizontal movement of connecting seat, and the second slide rail group that is obliquely arranged on connecting seat will convert horizontal movement into lifting movement to drive the lifting seat along the oblique direction and carry out accurate lifting. Motor screw rod module provides driving force, makes connecting seat reciprocating slide, realizes the height fine adjustment of lifting seat.

Description

Technical Field

[0001] This utility model relates to the field of fine-tuning stage technology, and specifically to a small-sized, large-stroke linear guide rail structure lifting fine-tuning stage. Background Technology

[0002] A lifting fine-tuning stage is a mechanism used to achieve precise vertical adjustment of workpieces or equipment. It typically consists of a base, a lifting seat, a lead screw module or electric push rod, a guide structure, and a fixed platform. By rotating the lead screw or drive module, the lifting seat moves up and down, achieving micron-level height adjustment for operations such as optical alignment, assembly positioning, or precision machining. It features a stable structure, precise adjustment, and high repeatability. Existing triangular wedge blocks on the market convert the horizontal motion of a motor lead screw into vertical motion. These include existing cross roller guide structures, conventional linear guide structures, and other basic triangular wedge slider structures. All three categories of these present the following problems: 1. Although the cross roller structure can achieve high precision and small size, it cannot achieve large stroke and high speed and high frequency movement under the same size. Due to the misalignment of the inclined guide rail and vertical guide rail cage, it can cause loss of precision or even jamming and shutdown. 2. Conventional linear guide designs cannot achieve the required stroke within the same external dimensions. In other words, if the large stroke of this application were achieved, the compact size, low center of gravity, and high stability of this application could not be achieved, nor could it meet the application scenarios where customers pursue some extreme design space requirements. 3. Using other triangular wedge sliders, such as dovetail grooves with lubricating grease, can meet certain requirements for high precision and small size. However, high precision comes with high cost, and reducing cost will not achieve high precision. Ordinary triangular wedge blocks, when used with grease, will experience dry friction between metals, causing wear between the sliders and creating movement gaps, which will reduce service life. The technical problem to be solved by this utility model is to provide a small-sized, large-stroke linear guide structure lifting and fine-tuning platform. Utility Model Content

[0003] The technical problem this invention addresses is: providing a small-sized, large-stroke linear guide structure lifting and fine-tuning platform; achieving a compact structure and large-stroke lifting adjustment through a double-layer slide rail combination. The first slide rail group on the platform base enables horizontal movement of the connecting seat, while the second slide rail group, inclined on the connecting seat, converts the horizontal movement into lifting motion, thereby driving the lifting seat to precisely lift and lower along the inclined direction. A motor screw module provides the driving force, causing the connecting seat to slide back and forth, achieving fine-tuning of the lifting seat's height. This ingenious design offers advantages such as small size, stable transmission, and high adjustment precision, making it suitable for space-constrained applications requiring high-precision lifting control.

[0004] A small-sized, large-stroke linear guide structure lifting and fine-tuning platform includes a motor screw module, a fine-tuning platform base, a first slide rail assembly horizontally arranged on the fine-tuning platform base, a connecting seat that slides horizontally synchronously with the first slide rail assembly, a second slide rail assembly tilted and mounted on the connecting seat, and a lifting seat that slides and rises synchronously with the second slide rail assembly. The motor screw module drives the connecting seat to reciprocate, thereby causing the lifting seat to rise and slide with the second slide rail assembly.

[0005] Preferably, the first slide rail assembly includes a horizontally arranged first guide rail and a first slide block disposed on and slidably engaged with the first guide rail; the second slide rail assembly includes an inclined second guide rail and a second slide block disposed on and slidably engaged with the second guide rail.

[0006] Preferably, a third slide rail assembly is provided between the lifting seat and the fine-tuning platform; and the third slide rail assembly includes a vertically arranged third guide rail and a third slide seat disposed on the third guide rail and slidably engaged with it.

[0007] Preferably, the connecting seat includes a first seat body that slides synchronously with the first slide rail group; and a second seat body is provided on both sides of the first seat body; and the second guide rail is fixedly installed with the second seat body; and the cross-section of the second seat body is L-shaped.

[0008] Preferably, the motor lead screw module includes a horizontally arranged motor; the motor shaft is connected to a lead screw; and a slider is provided that is threadedly engaged with the lead screw; the slider is fixedly installed with the first seat; the motor drives the lead screw to rotate, thereby driving the slider and the first seat to reciprocate along the first slide rail assembly.

[0009] Preferably, the bottom of the lifting seat is formed with an inclined screw module mounting groove; and both sides of the lifting seat are formed with guide rail grooves for mounting the second guide rail.

[0010] Preferably, a first optical coupler and a second optical coupler are provided below the first base; and a light-shielding plate is provided at the bottom of the first base; and the round-trip points of the moving path of the light-shielding plate are the first optical coupler and the second optical coupler.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: This utility model features a small-size, large-stroke linear guide rail structure for lifting and fine-tuning, achieving a compact structure and large-stroke lifting adjustment through a double-layer slide rail combination. The first slide rail group on the fine-tuning platform base enables horizontal movement of the connecting seat, while the second slide rail group, inclined on the connecting seat, converts the horizontal movement into lifting motion, thereby driving the lifting seat to precisely lift and lower along the inclined direction. A motor screw module provides the driving force, causing the connecting seat to slide back and forth, achieving fine-tuning of the lifting seat's height. This ingenious structural design offers advantages such as small size, stable transmission, and high adjustment precision, making it suitable for applications with limited space and requiring high-precision lifting control. By utilizing the internal circulation rolling friction of the miniature linear guide, it avoids the inability of conventional mechanisms such as cross roller guides to meet the comprehensive performance requirements of high speed, high frequency, small size, large stroke, high precision, high stability, and low cost. The side-mounted design of the miniature linear guide meets the design requirements of small size and large stroke, avoids the interference problem of the hole positions of the three sets of miniature linear guides and sliders, and realizes the assembly of the fine-tuning table, which facilitates installation and debugging.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a utility model Figure 1 A schematic diagram of its decomposed structure.

[0016] Figure 3 This is a schematic diagram of the lead screw structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the second slide rail assembly of this utility model.

[0018] Figure 5 This is a schematic diagram of the light-shielding sheet structure of this utility model.

[0019] In the diagram: 2. Fine-tuning platform; 3. First slide rail assembly; 4. Connecting seat; 5. Second slide rail assembly; 6. Lifting seat; 7. First guide rail; 8. First slide block; 9. Second guide rail; 10. Second slide block; 11. Third slide rail assembly; 12. Third guide rail; 13. Third slide block; 14. First base; 15. Second base; 16. Motor; 17. Lead screw; 18. Slider; 19. Lead screw module mounting slot; 20. Guide rail slot; 21. First optocoupler; 22. Second optocoupler; 23. Third optocoupler; 24. Light shield. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and 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.

[0021] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.

[0022] Please see Figures 1-5 In this embodiment of the utility model, a small-sized, large-stroke linear guide structure lifting and fine-tuning platform includes a motor screw module and a fine-tuning platform base 2; a first slide rail group 3 is horizontally arranged on the fine-tuning platform base 2; a connecting seat 4 is provided on the first slide rail group 3 and slides horizontally with it synchronously; a second slide rail group 5 is installed on the side of the connecting seat 4 and is inclined; and a lifting seat 6 is provided that slides and rises and falls synchronously with the second slide rail group 5; and the motor screw module drives the connecting seat 4 to reciprocate, so that the lifting seat 6 rises and falls and slides with the second slide rail group 5.

[0023] Specifically, a compact structure and large-stroke lifting adjustment are achieved through a double-layer slide rail combination. The first slide rail group 3, mounted on the fine-tuning platform 2, enables the horizontal movement of the connecting seat 4. The second slide rail group 5, mounted sideways on the connecting seat 4 and inclined, converts the horizontal movement into lifting motion, thereby driving the lifting seat 6 to precisely lift and lower along the inclined direction. A motor screw module provides the driving force, causing the connecting seat 4 to slide back and forth, achieving fine-tuning of the height of the lifting seat 6. The side-mounted second slide rail group 5, compared to a front-mounted design, significantly improves overall space utilization. This ingenious design boasts advantages such as small size, stable transmission, and high adjustment precision, making it suitable for applications with limited space and requiring high-precision lifting control.

[0024] Furthermore, the first slide rail group 3 includes a horizontally arranged first guide rail 7 and a first slide block 8 disposed on the first guide rail 7 and slidably engaged with it; the second slide rail group 5 includes an inclined second guide rail 9 and a second slide block 10 disposed on the second guide rail 9 and slidably engaged with it.

[0025] Specifically, multi-directional precision guidance is achieved by setting up a first slide rail group 3 and a second slide rail group 5. The first slide rail group 3 consists of a horizontally arranged first guide rail 7 and a first slide block 8 that slides with it, ensuring the smooth reciprocating motion of the connecting seat 4 in the horizontal direction; while the second slide rail group 5 consists of an inclined second guide rail 9 and a second slide block 10 that slides with it, enabling the lifting seat 6 to slide up and down along the inclined guide trajectory. The cooperation of the two sets of slide rails realizes the smooth conversion from horizontal motion driven by the motor 16 and lead screw 17 to lifting motion, further improving the motion accuracy and structural stability of the fine-tuning table.

[0026] Furthermore, a third slide rail assembly 11 is provided between the lifting seat 6 and the fine-tuning platform 2; and the third slide rail assembly 11 includes a vertically arranged third guide rail 12 and a third slide seat 13 disposed on the third guide rail 12 and slidingly engaged with it.

[0027] Specifically, a third slide rail assembly 11 is installed between the lifting seat 6 and the fine-tuning platform 2, which effectively improves the guiding accuracy and structural stability of the overall lifting motion. This third slide rail assembly 11 consists of a vertically arranged third guide rail 12 and a third slide block 13 that slides with it, ensuring precise guidance for the lifting seat 6 during vertical movement and preventing deviation or swaying. Through its coordinated operation with the aforementioned inclined second slide rail assembly 5, the third slide rail assembly 11 not only enhances the smoothness of the lifting motion but also improves the lifting accuracy and load-bearing reliability of the fine-tuning platform over a large stroke range.

[0028] Furthermore, the connecting seat 4 includes a first seat 14 that slides synchronously with the first slide rail group 3; and a second seat 15 is provided on both sides of the first seat 14; and the second guide rail 9 is fixedly installed with the second seat 15; and the cross-section of the second seat 15 is L-shaped.

[0029] Specifically, the connecting seat 4 adopts a multi-segment combination design to improve overall rigidity and guiding stability. It includes a first seat 14 that slides synchronously with the first slide rail assembly 3, ensuring smooth horizontal transmission. Second seats 15 are respectively installed on both sides of the first seat 14 for fixing the second guide rails 9, thus forming a reliable inclined guiding support structure. The cross-section of the second seat 15 is L-shaped, which not only facilitates a stable connection with the first seat 14 and the second guide rails 9, but also enhances the structure's torsional resistance and load-bearing capacity. This layout gives the connecting seat 4 good mechanical stability and space utilization during operation, contributing to high-precision lifting control of the fine-tuning stage.

[0030] Furthermore, the motor lead screw module includes a horizontally arranged motor 16; and the shaft of the motor 16 is connected to a lead screw 17; and a slider 18 is provided that is threadedly engaged with the lead screw 17; and the slider 18 is fixedly installed with the first seat 14; the motor 16 drives the lead screw 17 to rotate, thereby driving the slider 18 and the first seat 14 to reciprocate along the first slide rail group 3.

[0031] Specifically, the motor lead screw module, as the core drive mechanism of the entire platform, achieves precise control of horizontal movement. This module includes a horizontally positioned motor 16, whose shaft is connected to a lead screw 17. The lead screw 17 and a threaded slider 18 form a linear transmission structure. The slider 18 is fixedly installed to the first base 14, allowing the slider 18 and the first base 14 to smoothly reciprocate along the first slide rail group 3 when the motor 16 drives the lead screw 17 to rotate. This transmission method has the advantages of compact structure, sensitive response, and high positioning accuracy, effectively converting the rotational motion of the motor 16 into high-precision linear displacement, providing a stable and reliable driving force for the lifting and lowering adjustment of the fine-tuning stage.

[0032] Furthermore, the bottom of the lifting seat 6 is formed with an inclined screw 17 module mounting slot; and both sides of the lifting seat 6 are formed with guide rail grooves 20 for mounting the second guide rail 9.

[0033] Specifically, the lifting platform 6 is structurally designed to ensure close cooperation with the drive and guide mechanisms. Its bottom has an inclined mounting slot for the lead screw 17 module, used to precisely install the lead screw 17 module that matches the angle of the second slide rail assembly 5, thus ensuring that the drive transmission direction is consistent with the lifting guide direction. Simultaneously, guide rail grooves 20 are formed on both sides of the lifting platform 6 for installing the second guide rail 9, allowing the second guide rail 9 to be securely embedded, improving the overall installation accuracy and stability. This design not only optimizes the spatial layout but also ensures the smoothness and consistency of the lifting movement, further improving the transmission efficiency and lifting accuracy of the fine-tuning stage.

[0034] Furthermore, a first optical coupler 21, a second optical coupler 22, and a third optical coupler 23 are provided below the first base 14; and a light-shielding plate 24 is provided at the bottom of the first base 14; and the round-trip points of the moving path of the light-shielding plate 24 are the first optical coupler 21 and the third optical coupler 23.

[0035] Specifically, by setting a first optocoupler 21, a second optocoupler 22, and a third optocoupler 23 below the first seat 14, and by setting a light-shielding plate 24 at the bottom of the first seat 14, precise detection and limit control of the sliding stroke are achieved. During the reciprocating motion of the light-shielding plate 24 with the first seat 14, the two ends of its moving path correspond to the first optocoupler 21 and the third optocoupler 23, respectively. When the light-shielding plate 24 blocks an optocoupler, a position signal feedback is generated to identify the start and end positions of the movement. This photoelectric detection design enables the system to achieve automatic limit and position calibration, improving the operational safety and positioning accuracy of the fine-tuning stage, while avoiding mechanical collisions or overtravel problems.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A small-size, large-stroke linear guide structure lifting and fine-tuning stage, comprising a motor lead screw module and a fine-tuning stage base (2), characterized in that, The fine-tuning platform (2) is horizontally provided with a first slide rail group (3); and the first slide rail group (3) is provided with a connecting seat (4) that slides horizontally in sync with it; and the connecting seat (4) is vertically mounted with an inclined second slide rail group (5); and a lifting seat (6) is provided that slides and rises and falls synchronously with the second slide rail group (5); and the motor screw module drives the connecting seat (4) to reciprocate, so that the lifting seat (6) slides and rises and falls with the second slide rail group (5).

2. The lifting and fine-tuning platform with a small-size, large-stroke linear guide structure according to claim 1, characterized in that, The first slide rail group (3) includes a horizontally arranged first guide rail (7) and a first slide block (8) disposed on the first guide rail (7) and slidably engaged with it; the second slide rail group (5) includes an inclined second guide rail (9) and a second slide block (10) disposed on the second guide rail (9) and slidably engaged with it.

3. The lifting and fine-tuning platform with a small-size, large-stroke linear guide structure according to claim 1, characterized in that, A third slide rail assembly (11) is provided between the lifting seat (6) and the fine-tuning platform body (2); and the third slide rail assembly (11) includes a vertically arranged third guide rail (12) and a third slide seat (13) disposed on the third guide rail (12) and slidingly engaged with it.

4. The lifting and fine-tuning platform with a small-size, large-stroke linear guide structure according to claim 1, characterized in that, The connecting seat (4) includes a first seat (14) that slides synchronously with the first slide rail group (3); and a second seat (15) is provided on both sides of the first seat (14); and the second guide rail (9) is fixedly installed with the second seat (15); and the cross section of the second seat (15) is L-shaped.

5. The lifting and fine-tuning platform with a small-size, large-stroke linear guide structure according to claim 4, characterized in that, The motor lead screw module includes a horizontally arranged motor (16); and the motor (16) shaft is connected to a lead screw (17); and a slider (18) is provided that is threadedly engaged with the lead screw (17); and the slider (18) is fixedly installed with the first seat (14); the motor (16) drives the lead screw (17) to rotate, thereby driving the slider (18) and the first seat (14) to reciprocate along the first slide rail group (3).

6. The lifting and fine-tuning platform with a small-size, large-stroke linear guide structure according to claim 1, characterized in that, The bottom of the lifting seat (6) is formed with an inclined screw (17) module mounting slot; and both sides of the lifting seat (6) are formed with guide rail slots (20) for mounting the second guide rail (9).

7. The lifting and fine-tuning platform with a small-size, large-stroke linear guide structure according to claim 1, characterized in that, The first base (14) is provided with a first optical coupler (21), a second optical coupler (22), and a third optical coupler (23) below it; and the bottom of the first base (14) is provided with a light shield (24); and the round-trip points of the moving path of the light shield (24) are the first optical coupler (21) and the third optical coupler (23).

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