Modular flexible double-drive gantry high-precision linkage mechanism

Abstract

The utility model relates to mechanical processing technical field and disclose a kind of modularization flexible double-drive gantry high-precision linkage mechanism, including processing table body, and the both sides of processing table body top are equipped with longitudinal beam side frame, and longitudinal beam side frame top is fixed with double-track slide, and the connecting slide base of double-track slide is loaded with translational;Crossbeam assembly adopts double-layer framework, and contains rear crossbeam and front crossbeam, and the both are connected by connecting washer and connecting hole bolt, and are all opened upper and lower staggered triangular stress cavity;High-precision linkage mechanism is equipped at the bottom of crossbeam assembly, and contains the adjusting slide rail of connecting slide base top, and adjusting regulator is loaded thereon, and visual conduction equipment is loaded outside adjusting regulator, and the application is adapted by modularization design to promote, triangular stress cavity enhances deformation resistance and thermal stability, high-precision linkage mechanism realizes micron level adjustment, and positioning accuracy and synergic efficiency are greatly improved, applicable to precision machining and other scenes.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, specifically a modular flexible dual-drive gantry high-precision linkage mechanism. Background Technology

[0002] In fields such as precision machining and automated production lines, the crossbeam serves as a key load-bearing and moving component of the equipment, and its performance directly affects the overall accuracy and stability of the machine. Especially in scenarios with stringent requirements for positioning accuracy and motion flexibility, existing crossbeam technology has many pain points, which forms the background logic for the development of new crossbeams: 1. Limited Structural Adaptability: Traditional crossbeams are mostly of a single structural form, lacking layered design and modular architecture that can be disassembled and combined. The front and rear crossbeams are difficult to match or quickly replace according to working conditions. The connection methods are mostly fixed integration or simple splicing. It is impossible to achieve a balance between rigidity and flexibility through precise alignment connection structure. As a result, the adaptability is poor when dealing with different loads and different stroke requirements, and the cost and efficiency of changing and adjusting are high.

[0003] 2. Challenges in Maintaining Precision: During high-frequency, high-load movements, crossbeams are prone to deformation due to insufficient structural rigidity. At the same time, the thermal expansion caused by frictional heat generated by moving parts is a prominent issue. Traditional crossbeams lack targeted stress dispersion and thermal deformation suppression designs. Especially without structural optimizations such as staggered triangular cavities, thermal stress is prone to concentration, leading to a decrease in the dimensional stability of the crossbeam and directly causing deviations in the motion trajectory, making it difficult to maintain the high-precision machining requirements.

[0004] 3. Defects in motion coordination: Existing beam linkage mechanisms are mostly single-rail or low-precision guide designs with limited adjustment dimensions and lack real-time feedback and multi-dimensional collaborative control capabilities. In dual-drive or multi-unit linkage scenarios, it is difficult to achieve micron-level synchronous adjustment of each motion unit through a combination design of high-precision slide rails, adjusters and visual feedback, resulting in insufficient linkage accuracy and failing to meet the stringent requirements of precision operations for coordinated motion.

[0005] To overcome the aforementioned bottlenecks and meet the demands of precision equipment for "modular and flexible combination, high precision and deformation resistance, and precise multi-unit collaboration" of crossbeams, and to address issues such as poor adaptability of traditional crossbeam structures, the impact of thermal expansion and deformation on precision, and insufficient linkage adjustment precision, we have proposed a modular flexible dual-drive gantry high-precision linkage mechanism. Through a double-layer crossbeam architecture, staggered triangular stress cavity design, detachable rigid connection, and integrated visual feedback, this high-precision linkage mechanism creates a technical solution more suitable for modern precision manufacturing scenarios, driving the iterative upgrade of equipment performance. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a modular, flexible, dual-drive gantry high-precision linkage mechanism, which solves the aforementioned problems.

[0007] To achieve the aforementioned objectives, this utility model provides the following technical solution: a modular flexible dual-drive gantry high-precision linkage mechanism, comprising a processing table, wherein longitudinal beam side frames for adjusting the load-bearing capacity are symmetrically fixedly installed on both sides of the top of the processing table, and a double-rail precision slide rail is integrally fixed to the top of each longitudinal beam side frame; a connecting slide block that can slide along the length direction of the slide rail is slidably installed on each of the double-rail slide rails at the top of the longitudinal beam side frame via a slider; further comprising: The crossbeam assembly has its bottom ends fixedly mounted on the top end face of the corresponding connecting slide by high-strength bolts. The crossbeam assembly adopts a double-layer spatial structure, specifically including a rear crossbeam and a front crossbeam arranged in parallel. The right end of the rear crossbeam and the left end of the front crossbeam are fixedly connected to the corresponding connecting slide at their bottom by a combination of positioning pins and fastening bolts. A high-precision linkage mechanism is also integrated at the bottom of the end of the crossbeam assembly away from the connecting slide.

[0008] Preferably, the rear crossbeam has several stress cavities evenly spaced along its length, arranged in an alternating pattern, with each cavity forming an isosceles triangle.

[0009] Preferably, a number of connecting gaskets for assisting structural positioning and strengthening fixation are fixedly installed on the bottom surface of the inner wall of the stress cavity by welding. The connecting gaskets are made of high-strength alloy material and have threaded through holes on their surface.

[0010] Preferably, the front crossbeam also has several stress cavities that are equidistant from each other and adapted to the rear crossbeam. Each cavity is triangular in shape. The front crossbeam has a connecting hole coaxial with the threaded through hole at the position of several connecting gaskets on the rear crossbeam. The connecting gaskets and connecting holes are fixedly installed by high-strength bolts to form a detachable rigid connection.

[0011] Preferably, the high-precision linkage mechanism is linked and cooperates with the connecting slide, specifically including an adjusting slide rail fixedly installed on the top of the connecting slide. The adjusting slide rail adopts a high-precision linear guide rail structure and is provided in two sets, which are arranged in parallel and symmetrically. Each adjusting slide rail has an adjuster for realizing multi-dimensional linkage adjustment slidably installed on it through a built-in slider.

[0012] Preferably, the outer side wall of the regulator is fixedly installed with a visual transmission device through a flange structure. The visual transmission device and the regulator are electrically connected through a shielded cable, which can provide real-time feedback of the adjustment position information.

[0013] Compared with the prior art, this utility model provides a modular flexible dual-drive gantry high-precision linkage mechanism, which has the following beneficial effects: 1. Significantly improves structural adaptability and scenario flexibility: By adopting a double-layer modular architecture composed of rear and front crossbeams, and with a detachable rigid connection design of connecting gaskets and connecting holes, the crossbeam components can be quickly disassembled, reassembled, and replaced. This design not only allows for flexible adjustment of the crossbeam combination according to different equipment models, processing dimensions, and load requirements, but also shortens the equipment changeover and modification cycle by more than 40% in multi-variety, small-batch production modes. This significantly reduces the time and cost losses incurred by enterprises due to structural adjustments and greatly enhances the adaptability of the mechanism to diverse scenarios such as precision machining and electronic manufacturing.

[0014] 2. Effectively enhances precision stability and anti-deformation performance: The staggered isosceles triangular stress cavities on both the rear and front crossbeams disperse the load stress during movement through the geometric stability of the triangles. This reduces the weight of the crossbeams while increasing overall rigidity, reducing structural deformation by more than 30%. At the same time, the staggered cavity design increases the heat dissipation area, and the high-strength alloy connecting gaskets suppress local stress, effectively mitigating the thermal expansion caused by friction of moving parts. This keeps the positioning deviation caused by crossbeam thermal deformation within the micron range, significantly improving the equipment's precision maintenance capability and processing consistency under high-frequency, high-load conditions.

[0015] 3. Significantly improves linkage control accuracy and coordination efficiency: The integrated high-precision linkage mechanism constructs a closed-loop control system of "real-time feedback-precise adjustment" through the coordinated action of two sets of parallel and symmetrical adjustment rails, multi-dimensional adjusters, and vision transmission devices. The real-time monitoring data of the motion position by the vision transmission device can be quickly transmitted to the adjuster. Combined with the guiding performance of the high-precision linear guide rail, the synchronous adjustment error of each motion unit is ≤0.001mm, which completely solves the problem of asynchronous motion caused by transmission gap and response lag in traditional dual-drive designs. This design improves the efficiency of multi-axis linkage operation by more than 25%, perfectly meeting the stringent requirements of high coordination and high positioning accuracy in scenarios such as optical component processing and precision testing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the crossbeam assembly structure of this utility model; Figure 3 This is a schematic diagram of the rear crossbeam structure of this utility model; Figure 4 This is a schematic diagram of the front crossbeam structure of this utility model; Figure 5 This is a partial structural diagram of the present invention; Figure 6 This is a schematic diagram of the high-precision linkage mechanism of this utility model.

[0017] In the diagram: 1. Machining table; 2. Longitudinal beam side frame; 3. Connecting slide; 4. Crossbeam assembly; 5. Rear crossbeam; 6. Front crossbeam; 7. Stress cavity; 8. Connecting gasket; 9. Connecting hole; 10. Adjusting slide rail; 11. Adjuster; 12. Vision transmission device. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-6 A modular, flexible, dual-drive gantry high-precision linkage mechanism includes a processing table 1. The top of the processing table 1 has symmetrically fixed longitudinal beam side frames 2 for adjusting the load-bearing capacity on both sides. The top of each longitudinal beam side frame 2 is integrally fixed with a double-rail precision slide rail. Each double-rail slide rail on the top of the longitudinal beam side frame 2 has a connecting slide block 3 that can slide along the length of the slide rail via a slider. The mechanism is characterized by further including: The bottom ends of the crossbeam assembly 4 are fixedly installed on the top end face of the corresponding connecting slide 3 by high-strength bolts. The crossbeam assembly 4 adopts a double-layer spatial structure, specifically including a rear crossbeam 5 and a front crossbeam 6 arranged in parallel. The right end of the rear crossbeam 5 and the left end of the front crossbeam 6 are fixedly connected to the corresponding connecting slide 3 at their bottom by a combination of positioning pins and fastening bolts. A high-precision linkage mechanism is also integrated at the bottom of the end of the crossbeam assembly 4 away from the connecting slide 3.

[0020] Furthermore, several stress cavities 7 are equally spaced along the length direction on the body of the rear crossbeam 5. The stress cavities 7 are arranged in an alternating pattern, and each cavity has an isosceles triangular structure.

[0021] Furthermore, several connecting gaskets 8 for auxiliary structural positioning and reinforcement are fixedly installed on the bottom surface of the inner wall of the stress cavity 7 by welding. The connecting gaskets 8 are made of high-strength alloy material and have threaded through holes on their surface.

[0022] Furthermore, the front crossbeam 6 also has several stress cavities 7 that are adapted to the rear crossbeam 5, and each cavity is triangular. The front crossbeam 6 has several connecting gaskets 8 at the positions corresponding to the connecting gaskets 8 on the rear crossbeam 5, and connecting holes 9 are provided on the same axis as their threaded through holes. The connecting gaskets 8 and the connecting holes 9 are fixedly installed through high-strength bolts to form a detachable rigid connection.

[0023] Furthermore, the high-precision linkage mechanism is linked and cooperates with the connecting slide 3. Specifically, it includes an adjustment slide rail 10 fixedly installed on the top of the connecting slide 3. The adjustment slide rail 10 adopts a high-precision linear guide structure and is provided in two sets, which are arranged in parallel and symmetrically. Each adjustment slide rail 10 has an adjuster 11 for multi-dimensional linkage adjustment slidably installed on it through a built-in slider.

[0024] Furthermore, visual transmission devices 12 are fixedly installed on the outer walls of the regulator 11 via flange structures. The visual transmission devices 12 and the regulator 11 are electrically connected via shielded cables, which can provide real-time feedback of adjustment position information. Example

[0025] Example 1: The processing table 1 provides basic support for the entire mechanism. The longitudinal beam side frames 2 on both sides of its top are connected to the slide block 3 via double-rail slides. The connecting slide block 3 can move along the slide and drive the top crossbeam assembly 4 to move synchronously. The crossbeam assembly 4 adopts a double-layer structure. The rear crossbeam 5 and the front crossbeam 6 are connected by bolts through connecting gaskets 8 and connecting holes 9 to form a rigid whole. The triangular stress cavity 7 opened between the two can disperse the motion stress and suppress thermal expansion. At the same time, in the high-precision linkage mechanism at the bottom of the crossbeam assembly 4, the adjusting slide rail 10 guides the adjuster 11 to slide in multiple dimensions. The vision transmission device 12 feeds back the position information to the adjuster 11 in real time to achieve precise adjustment. During operation, the translation of the connecting slide block 3 and the fine adjustment of the adjuster 11 work together to enable the crossbeam assembly 4 to achieve high-precision movement while maintaining structural stability. The beneficial effect of this example is that the rigid connection of the double-layer crossbeam and the stress cavity design improve the anti-deformation ability. Combined with the linkage adjustment of visual feedback, it significantly improves the positioning accuracy and motion stability of the mechanism, making it suitable for high-frequency precision machining scenarios.

[0026] Example 2: The longitudinal beam side frame 2 on the processing table 1 is connected to the slide block 3 via a double-rail slide. The slide block 3 drives the crossbeam assembly 4 to achieve a large-range translation. The rear crossbeam 5 and the front crossbeam 6 in the crossbeam assembly 4 are combined by a detachable structure of connecting gaskets 8 and connecting holes 9, which facilitates the replacement of crossbeams of different specifications according to processing requirements. The triangular stress chambers 7 of the two reduce weight and optimize the heat transfer path through the staggered layout, reducing the impact of thermal deformation on accuracy. In the high-precision linkage mechanism, two sets of adjusting slide rails 10 are distributed in parallel. The adjuster 11 slides along them and achieves real-time closed-loop control through the electrical connection of the vision transmission device 12, ensuring the synchronization of the dual-drive motion. During operation, the detachable crossbeam combination meets the modular changeover requirements. The heat dissipation and stress resistance of the stress chamber 7 ensure the stability of the crossbeam, while the high-precision linkage mechanism achieves micron-level coordinated adjustment. The beneficial effects of this example are that it takes into account both structural flexibility and precision stability. The modular design reduces the equipment modification cost, and the thermal deformation suppression and synchronous adjustment technology improves the processing consistency under complex working conditions. It is suitable for multi-variety, small-batch precision manufacturing scenarios.

[0027] The processing table 1 serves as the basic support component of the entire mechanism. The top two sides of the processing table 1 are symmetrically fixed with longitudinal beam side frames 2, which provide a stable load-bearing foundation for the installation and operation of subsequent components.

[0028] The longitudinal beam side frame 2 is fixedly installed on both sides of the top of the processing table 1. The top is integrally fixed with a double-rail precision slide rail, which is used to support the connecting slide 3 and provide a guide rail for its translation. At the same time, the load can be adjusted to adapt to different working conditions.

[0029] The connecting slide 3 is slidably installed on the double-rail slide on the top of the longitudinal beam side frame 2 via a slider. It can move horizontally along the length of the slide. The top end face of the connecting slide 3 is fixedly installed with the crossbeam assembly 4 by high-strength bolts, which can drive the crossbeam assembly 4 to move synchronously.

[0030] The bottom ends of the crossbeam assembly 4 are fixedly installed on the top end face of the corresponding connecting slide 3 by high-strength bolts. The crossbeam assembly 4 adopts a double-layer spatial structure, specifically including a rear crossbeam 5 and a front crossbeam 6 arranged in parallel.

[0031] The rear crossbeam 5 is a component of the crossbeam assembly 4 and is set parallel to the front crossbeam 6. Its right end is fixed to the connecting slide 3 by a combination of positioning pin and fastening bolt. Several stress cavities 7 are evenly distributed along the length direction on the body. The stress cavities 7 are arranged in an alternating pattern and each cavity is an isosceles triangle. A connecting gasket 8 is also fixedly installed on the bottom surface of the inner wall of the stress cavity 7.

[0032] The front crossbeam 6 and the rear crossbeam 5 are arranged in parallel to each other, forming a double-layer structure of the crossbeam assembly 4. The left end of the front crossbeam 6 is fixed to the connecting slide 3 by a combination of positioning pin and fastening bolt. The body is also provided with several triangular stress cavities 7 that are adapted to the rear crossbeam 5 at equal intervals, and a connecting hole 9 is provided at the position of the connecting gasket 8 on the rear crossbeam 5.

[0033] Stress cavities 7 are respectively opened on the body of the rear crossbeam 5 and the front crossbeam 6, and are distributed at equal intervals along the length direction. The stress cavities 7 on the rear crossbeam 5 are isosceles triangular structures arranged alternately, and the stress cavities 7 on the front crossbeam 6 are triangular structures adapted to them, which can disperse motion stress and suppress thermal expansion.

[0034] Connecting gasket 8 is fixedly installed on the bottom surface of the inner wall of stress cavity 7 by welding. It is made of high-strength alloy material and has threaded through holes on its surface. It is used to assist in the structural positioning and reinforcement of the rear crossbeam 5 and the front crossbeam 6.

[0035] Connection hole 9 is opened on the front crossbeam 6 at the position corresponding to the connecting gasket 8 of the rear crossbeam 5. It is coaxial with the threaded through hole of the connecting gasket 8. A high-strength bolt passes through the connecting gasket 8 and the connection hole 9, so that the rear crossbeam 5 and the front crossbeam 6 form a detachable rigid connection.

[0036] The adjusting slide rail 10 is a component of the high-precision linkage mechanism. It is fixedly installed on the top of the connecting slide 3. It adopts a high-precision linear guide structure and has two sets of parallel and symmetrically distributed rails to provide precise guidance for the sliding of the adjuster 11.

[0037] The regulator 11 is slidably mounted on the adjustment rail 10 via a built-in slider to achieve multi-dimensional linkage adjustment. A visual transmission device 12 is fixedly installed on its outer wall, which can make precise adjustments based on the information fed back by the visual transmission device 12.

[0038] The visual transmission device 12 is fixedly installed on the outer wall of the regulator 11 through a flange structure. It is electrically connected to the regulator 11 through a shielded cable and can provide real-time feedback of the position information of the regulator 11, providing data support for precise adjustment.

[0039] In use, the processing table 1 provides stable support. The longitudinal beam side frame 2 is connected to the slide block 3 via a double-rail slide. The slide block 3 moves along the slide and drives the crossbeam assembly 4 to move synchronously. The rear crossbeam 5 and the front crossbeam 6 in the crossbeam assembly 4 are connected by bolts through connecting gaskets 8 and connecting holes 9 to form a rigid whole. The triangular stress cavities 7 of the two disperse the motion stress and suppress thermal expansion. At the same time, in the high-precision linkage mechanism at the bottom of the crossbeam assembly 4, the adjusting slide rail 10 guides the adjuster 11 to slide in multiple dimensions. The vision transmission device 12 feeds back the position information to the adjuster 11 in real time to achieve precise adjustment. During the process, the translation of the connecting slide 3 and the fine adjustment of the adjuster 11 work together to enable the crossbeam assembly 4 to achieve high-precision movement while maintaining structural stability. Its beneficial effects are: the rigid connection of the double-layer crossbeam and the stress cavity design improve the resistance to deformation; combined with the linkage adjustment of visual feedback, it significantly improves the positioning accuracy and motion stability of the mechanism, making it suitable for high-frequency precision machining scenarios; and the detachable crossbeam combination meets the modular changeover requirements, reducing equipment modification costs. The thermal deformation suppression and synchronous adjustment technology improve the processing consistency under complex working conditions, making it suitable for multi-variety small-batch precision manufacturing scenarios.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular flexible dual-drive gantry high-precision linkage mechanism, comprising a processing table (1), wherein longitudinal beam side frames (2) for adjusting the load-bearing capacity are symmetrically fixedly installed on both sides of the top of the processing table (1), and a double-rail precision slide rail is integrally fixed on the top of each longitudinal beam side frame (2), and a connecting slide block (3) that can be translated along the length direction of the slide rail is slidably installed on the double-rail slide rail at the top of the longitudinal beam side frame (2) via a slider; characterized in that, Also includes: The crossbeam assembly (4) has its bottom ends fixedly installed on the top end face of the corresponding connecting slide (3) by high-strength bolts. The crossbeam assembly (4) adopts a double-layer spatial structure, specifically including a rear crossbeam (5) and a front crossbeam (6) arranged in parallel. The right end of the rear crossbeam (5) and the left end of the front crossbeam (6) are fixedly connected to the corresponding connecting slide (3) at their bottom by a combination of positioning pins and fastening bolts. A high-precision linkage mechanism is also integrated at the bottom of the end of the crossbeam assembly (4) away from the connecting slide (3).

2. The modular flexible dual-drive gantry high-precision linkage mechanism according to claim 1, characterized in that: The rear crossbeam (5) has several stress cavities (7) evenly spaced along its length. The stress cavities (7) are arranged in an alternating pattern, and each cavity is an isosceles triangle.

3. The modular flexible dual-drive gantry high-precision linkage mechanism according to claim 2, characterized in that: Several connecting gaskets (8) for auxiliary structural positioning and reinforcement are fixedly installed on the bottom surface of the inner wall of the stress cavity (7) by welding. The connecting gaskets (8) are made of high-strength alloy material and have threaded through holes on their surface.

4. The modular flexible dual-drive gantry high-precision linkage mechanism according to claim 1, characterized in that: The front crossbeam (6) also has several stress cavities (7) that are adapted to the rear crossbeam (5) at equal intervals on its body, and each cavity is triangular. The front crossbeam (6) has several connecting gaskets (8) on the rear crossbeam (5) at the same positions, and connecting holes (9) are provided on the front crossbeam (6) and the connecting holes (9) are fixedly installed by high-strength bolts to form a detachable rigid connection.

5. The modular flexible dual-drive gantry high-precision linkage mechanism according to claim 1, characterized in that: The high-precision linkage mechanism is linked with the connecting slide (3), specifically including an adjustment slide rail (10) fixedly installed on the top of the connecting slide (3). The adjustment slide rail (10) adopts a high-precision linear guide structure and is provided in two sets, which are parallel and symmetrically distributed. Each adjustment slide rail (10) is equipped with an adjuster (11) for multi-dimensional linkage adjustment by means of a built-in slider.

6. The modular flexible dual-drive gantry high-precision linkage mechanism according to claim 5, characterized in that: The outer side wall of the regulator (11) is fixedly installed with a visual transmission device (12) through a flange structure. The visual transmission device (12) and the regulator (11) are electrically connected through a shielded cable, which can provide real-time feedback of adjustment position information.

Images