Compact single-drive gantry structure

Abstract

The invention provides a compact single-drive gantry structure, and relates to the technical field of gantry structures, the compact single-drive gantry structure comprises a gantry frame, the top of the gantry frame is provided with a y-axis mechanism, the y-axis mechanism is driven by a first linear motor, and the top of the y-axis mechanism is provided with an x-axis mechanism. According to the device, front-back and left-right movement can be achieved through the x-axis mechanism and the y-axis mechanism, up-down movement can be achieved through the lifting mechanism, then the output end on the lifting mechanism can be driven to be fixed, photoelectric induction and straight lines can be encoded through the encoder, and the adjustment accuracy is improved; the auxiliary track can support and assist the x-axis mechanism, the moving stability of the x-axis mechanism is improved, two first gears are matched with each other, two second gears can be driven to rotate reversely under the action of a shaft rod, and then row teeth which are in meshed connection with the second gears and are fixed to a sliding frame can be driven to move up and down; therefore, the carriage can move up and down.

Description

Technical Field

[0001] This invention relates to the field of gantry structure technology, and more particularly to a compact single-drive gantry structure. Background Technology

[0002] In existing technologies, gantry structures, as important equipment widely used in heavy material handling, precision machining, and assembly, offer advantages such as large spans and high load-bearing capacity. Gantry structures are typically used in applications requiring the crossing of large areas and support of heavy loads, and are particularly suitable for high-load, complex operations. However, despite their excellent performance in material handling and processing, some problems remain to be solved in practical applications, especially regarding the compatibility of the lifting system. Currently, some gantry cranes lack or are not equipped with lifting systems. While this design may be sufficient for basic operational needs in certain situations, it proves inadequate in variable working environments. The lack of a lifting system in a gantry structure means that operators must manually adjust the height of the worktable to adapt to different processing requirements or material handling tasks. However, manual adjustment is not only time-consuming and labor-intensive but also prone to errors, especially in high-frequency, high-intensity work environments, where the risk of misoperation increases significantly, greatly reducing work efficiency and safety. First, manually adjusting the height of the workbench typically requires significant physical exertion from the operator, especially in tasks requiring frequent adjustments. Manual operation not only increases labor intensity but can also lead to worker fatigue, impacting efficiency and accuracy. Second, due to the lower precision of manual height adjustments, operators often struggle to ensure each adjustment achieves the ideal height, resulting in inconsistencies. These inconsistencies can lead to errors during processing, affecting product quality. Particularly in precision machining, even minute height deviations can cause unacceptable machining errors, impacting the precision and performance of the final product. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies. Currently, some gantry mechanisms lack a lifting system. While this design may be sufficient for basic operational needs in certain situations, it proves inadequate in variable working environments. The lack of a lifting system in a gantry structure means that operators must manually adjust the height of the worktable to adapt to different processing requirements or material handling tasks. However, manual adjustment is not only time-consuming and labor-intensive but also prone to errors, especially in high-frequency, high-intensity work environments, where the risk of misoperation increases significantly, greatly reducing work efficiency and safety. First, manually adjusting the height of the workbench typically requires significant physical exertion from the operator, especially in tasks requiring frequent adjustments. Manual operation not only increases labor intensity but can also lead to worker fatigue, impacting efficiency and accuracy. Second, due to the lower precision of manual height adjustments, operators often struggle to ensure each adjustment achieves the ideal height, resulting in inconsistencies. These inconsistencies can lead to errors during processing, affecting product quality. Particularly in precision machining, even minute height deviations can cause unacceptable machining errors, impacting the precision and performance of the final product.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a compact single-drive gantry structure, comprising a gantry frame, a y-axis mechanism at the top of the gantry frame driven by a first linear motor, an x-axis mechanism at the top of the y-axis mechanism driven by a second linear motor, an auxiliary rail at the top of the gantry frame for assisting the x-axis mechanism, an encoder mounted on one side of the y-axis mechanism, and a lifting mechanism on one side of the x-axis mechanism, the lifting mechanism including a support plate fixed to the moving end of the x-axis mechanism, and a drive motor mounted on one side of the support plate. Inside the moving end of the x-axis mechanism, two shafts are provided on one side of the support plate. The output end of the drive motor is fixedly connected to one end of one of the shafts, and one end of the other shaft is rotatably connected to one side of the support plate. A first gear is fixedly sleeved on the outer surface of the two shafts. A support shell is fixedly connected to one side of the support plate. One end of the two shafts rotatably extends through to the outside of the support shell. A protective shell is fixedly connected to the outer surface of the support shell. A second gear is fixedly connected to one end of the shaft. A slide is provided on one side of the support shell. Grooves are provided on both sides of the slide. A toothed rack is fixedly connected to the inner wall of the groove.

[0005] In a preferred embodiment, the inner wall of the protective shell is rotatably connected to the outer surface of the shaft, the two first gears are meshed together, and the second gear is meshed with the gear rack.

[0006] In a preferred embodiment, two recessed frames are fixedly connected to one side of the support shell, and a sliding plate is fixedly connected to one side of the recessed frame. Sliding grooves are provided on both sides of the sliding frame, and the inner wall of the sliding groove is slidably connected to the outer surface of the sliding plate.

[0007] In a preferred embodiment, a sliding plate is fixedly connected to one side of the recess, and a limiting plate is fixedly connected to one side of the sliding plate.

[0008] In a preferred embodiment, the inner wall of the groove has two limiting grooves, the inner wall of the groove is slidably connected to the outer surface of the sliding plate, and the outer surface of the limiting plate is slidably connected to the inner wall of the limiting groove.

[0009] In a preferred embodiment, the top of the carriage is provided with a support mechanism, which includes a fixed plate fixed to the top of the moving end of the x-axis mechanism. A support plate is fixedly connected to one side of the fixed plate, and a baffle is fixedly connected to the top of the fixed plate. A limit rod is fixedly connected to the top of the support plate, and the top end of the limit rod is fixedly connected to the bottom of the baffle. A connecting plate is provided on the outer surface of the limit rod, and a sliding hole is opened on the top of the connecting plate. The inner wall of the sliding hole is slidably connected to the outer surface of the limit rod.

[0010] In a preferred embodiment, two connecting frames are slidably connected to the outer surface of the fixed plate. One side of the two connecting frames is fixedly connected to the outer surface of the connecting plate, and a limiting roller is rotatably connected between the two connecting frames. The outer surface of the limiting roller is provided with a guide belt.

[0011] In a preferred embodiment, both ends of the conductor strip are fixedly connected to wire fasteners for securing the conductor strip, and the bottoms of the two wire fasteners are respectively fixedly connected to the top of the carriage and the top of the moving end of the x-axis mechanism.

[0012] In a preferred embodiment, a spring is provided on the outer surface of the limiting rod, one end of the spring is fixedly connected to the top of the support plate, and the other end of the spring is fixedly connected to the bottom of the connecting plate.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, the x-axis and y-axis mechanisms enable forward and backward movement and left and right movement, while the lifting mechanism enables up and down movement. This allows the output end of the lifting mechanism to be fixed. The encoder encodes photoelectric sensing and linear motion, increasing the accuracy of the adjustment. The auxiliary track supports the x-axis mechanism, increasing the stability of its movement. The two first gears cooperate with each other, driving the two second gears to rotate in opposite directions under the action of the shaft. This, in turn, drives the gear rack connected to the second gears and fixed on the slide to move up and down, thus enabling the slide to move up and down. The protective shell protects the shaft located outside the support shell, increasing the shaft's load-bearing capacity and service life. It also reduces the probability of dust entering between the shaft and the support shell, reducing the number of maintenance operations within the same time period.

[0014] 2. In this invention, the recessed frame can limit the sliding of the carriage, increasing its sliding stability. The sliding groove and slide plate can further increase the sliding stability of the carriage. The cooperation between the limiting plate and the sliding plate with the groove and limiting groove can further increase the sliding stability of the carriage. Through triple limiting, the carriage can be made more stable during up and down movement. The support plate and baffle can fix the limiting rod, thereby making the sliding effect of the connecting plate sliding on the limiting rod more stable, and thus making the movement of the two connecting frames more stable. The rotation effect of the limiting roller can make the conductor belt more smoothly transition when it is pulled, avoiding bending of the conductor belt and damage to the internal conductor. The wire fastener can make the connection between the conductor belt and the carriage and the X-axis mechanism more stable, preventing the conductor belt from breaking off from the carriage and the X-axis mechanism during the pulling process. Attached Figure Description

[0015] Figure 1 A structural schematic diagram of a compact single-drive gantry structure is provided for this invention; Figure 2 This invention provides a partial structural schematic diagram of a compact single-drive gantry structure. Figure 3 An exploded structural diagram of the lifting mechanism of a compact single-drive gantry structure is provided for this invention. Figure 4 This invention provides a cross-sectional exploded view of the carriage section of a compact single-drive gantry structure. Figure 5 This is a structural schematic diagram of the support mechanism of a compact single-drive gantry structure proposed in this invention; Figure 6 This invention presents an exploded structural diagram of the support mechanism of a compact single-drive gantry structure.

[0016] Legend: 1. Gantry frame; 2. Lifting mechanism; 3. Auxiliary rail; 4. X-axis mechanism; 5. Y-axis mechanism; 6. Encoder; 21. Support plate; 22. Support shell; 23. Shaft; 24. First gear; 25. Protective shell; 26. Second gear; 27. Recessed frame; 28. Slide; 29. ​​Support mechanism; 210. Slide groove; 211. Slide plate; 212. Groove; 213. Limiting groove; 214. Tooth arrangement; 215. Sliding plate; 216. Limiting plate; 291. Fixing plate; 292. Support plate; 293. Baffle; 294. Limiting rod; 295. Connecting plate; 296. Spring; 297. Connecting frame; 298. Limiting roller; 299. Guide belt; 2910. Wire fastener. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0018] like Figure 1-6 As shown, the present invention provides a technical solution: a compact single-drive gantry structure, including a gantry frame 1, a y-axis mechanism 5 at the top of the gantry frame 1 driven by a first linear motor, an x-axis mechanism 4 at the top of the y-axis mechanism 5 driven by a second linear motor, an auxiliary rail 3 at the top of the gantry frame 1 to assist the x-axis mechanism 4, an encoder 6 mounted on one side of the y-axis mechanism 5, and a lifting mechanism 2 at one side of the x-axis mechanism 4. The lifting mechanism 2 includes a support plate 21 fixed to the moving end of the x-axis mechanism 4, and a drive motor mounted on one side of the support plate 21 and fixed inside the moving end of the x-axis mechanism 4. Two shafts 23 are provided on one side of the support plate 21. The output end of the drive motor is fixedly connected to one end of one shaft 23, and one end of the other shaft 23 is rotatably connected to one side of the support plate 21. A first gear 24 is fixedly sleeved on the outer surface of the two shafts 23. A support shell 22 is fixedly connected to one side of the support plate 21. One end of the two shafts 23 rotatably passes through to the outside of the support shell 22. A protective shell 25 is fixedly connected to the outer surface of the support shell 22. A second gear 26 is fixedly connected to one end of the shaft 23. A slide 28 is provided on one side of the support shell 22. Grooves 212 are opened on both sides of the slide 28. A toothed rack 214 is fixedly connected to the inner wall of the groove 212. Through the above embodiments, the x-axis mechanism 4 and y-axis mechanism 5 can realize forward and backward and left and right movements, while the lifting mechanism 2 can realize up and down movements, thereby driving the output end on the lifting mechanism 2 to be fixed. The encoder 6 can encode photoelectric sensing and linear motion, increasing the accuracy of adjustment, while the auxiliary track 3 can support and assist the x-axis mechanism 4, increasing the stability of the movement of the x-axis mechanism 4. By having two first gears 24 cooperate with each other, the shaft 23 can drive two second gears 26 to rotate in opposite directions, which in turn can drive the gear rack 214, which is meshed with the second gears 26 and fixed on the slide 28, to move up and down, thereby enabling the slide 28 to move up and down. Among them, the slide 28 is the carrier of the internal output end of the lifting mechanism 2. The output end is installed inside the slide 28. The slide groove 210, groove 212 and limiting groove 213 opened on the slide 28 are all inherent to the slide 28 itself. The markings in the figure are only for understanding. The slide 28 has electronic components required for the output end inside. It belongs to the prior art and will not be described in detail here. The moving end of the x-axis mechanism 4 represents all the structures that the second linear motor can drive to move. It is the prior art and will not be described in detail here. The inner wall of the protective shell 25 is rotatably connected to the outer surface of the shaft 23, the two first gears 24 are meshed together, and the second gear 26 is meshed with the gear 214. Through the above embodiments, the protective shell 25 can protect the shaft 23 located outside the support shell 22, increase the bearing capacity of the shaft 23, increase the service life of the shaft 23, and also reduce the probability of dust entering between the shaft 23 and the support shell 22, and reduce the number of maintenance times in the same period of time. Two recessed frames 27 are fixedly connected to one side of the support shell 22, and a sliding plate 211 is fixedly connected to one side of the recessed frame 27. Sliding grooves 210 are provided on both sides of the sliding frame 28, and the inner wall of the sliding groove 210 is slidably connected to the outer surface of the sliding plate 211. Through the above embodiments, the recess 27 can limit the slide 28 and increase the sliding stability of the slide 28, and the slide groove 210 and slide plate 211 can further increase the sliding stability of the slide 28. A sliding plate 215 is fixedly connected to one side of the recess 27, and a limit plate 216 is fixedly connected to one side of the sliding plate 215. The inner wall of the groove 212 is provided with two limiting grooves 213. The inner wall of the groove 212 is slidably connected to the outer surface of the sliding plate 215, and the outer surface of the limiting plate 216 is slidably connected to the inner wall of the limiting groove 213. Through the above embodiments, by cooperating with the limiting plate 216 and the sliding plate 215 with the groove 212 and the limiting groove 213, the sliding stability of the carriage 28 can be increased. Through triple limiting, the carriage 28 can be made more stable during the up and down movement. The top of the slide 28 is provided with a support mechanism 29. The support mechanism 29 includes a fixed plate 291 fixed to the top of the moving end of the x-axis mechanism 4. A support plate 292 is fixedly connected to one side of the fixed plate 291. A baffle 293 is fixedly connected to the top of the fixed plate 291. A limit rod 294 is fixedly connected to the top of the support plate 292. The top end of the limit rod 294 is fixedly connected to the bottom of the baffle 293. A connecting plate 295 is provided on the outer surface of the limit rod 294. A sliding hole is opened on the top of the connecting plate 295. The inner wall of the sliding hole is slidably connected to the outer surface of the limit rod 294. Two connecting brackets 297 are slidably connected to the outer surface of the fixed plate 291. One side of the two connecting brackets 297 is fixedly connected to the outer surface of the connecting plate 295. A limiting roller 298 is rotatably connected between one side of the two connecting brackets 297. A guide belt 299 is provided on the outer surface of the limiting roller 298. Through the above embodiments, the limiting rod 294 can be fixed by the support plate 292 and the baffle 293, which makes the sliding effect of the connecting plate 295 sliding on the limiting rod 294 more stable, and makes the movement of the two connecting frames 297 more stable. The rotation effect of the limiting roller 298 makes the conductor belt 299 more smoothly transition when it is pulled by force, and avoids the conductor belt 299 from bending and damaging the internal conductor. Both ends of the conductor strip 299 are fixedly connected to wire fasteners 2910 for fixing the conductor strip 299. The bottom of the two wire fasteners 2910 are fixedly connected to the top of the slide 28 and the top of the moving end of the x-axis mechanism 4, respectively. Through the above embodiments, the wire fastener 2910 can make the wire strip 299 more stable with the carriage 28 and the x-axis mechanism 4, and prevent the wire strip 299 from breaking off from the carriage 28 and the x-axis mechanism 4 during the pulling process; Among them, the wire strip 299 is electrically connected to the electronic components in the moving end of the x-axis mechanism 4 and the electronic components inside the carriage 28, respectively, for the equipment in the x-axis mechanism 4 to control the carriage 28. Existing technology can be used, so it will not be described in detail here. A spring 296 is provided on the outer surface of the limiting rod 294. One end of the spring 296 is fixedly connected to the top of the support plate 292, and the other end of the spring 296 is fixedly connected to the bottom of the connecting plate 295. In the above embodiments, the spring 296 provides a restorative function. During the downward movement of the slide 28, the guide belt 299 is pulled to drive the limiting roller 298 to move downward. The movement of the limiting roller 298 is transmitted through the connecting frame 297, which in turn drives the connecting plate 295 to move, thereby compressing the spring 296. The elastic potential energy of the spring 296 enables the limiting roller 298 to stably contact and support the guide belt 299. During the upward movement of the slide 28, the elastic potential energy released by the spring 296 drives the limiting roller 298 to support the guide belt 299.

[0019] Working principle: like Figure 1-6 As shown, in use, the x-axis mechanism 4 and y-axis mechanism 5 can realize forward and backward and left and right movement, while the lifting mechanism 2 can realize up and down movement, thereby driving the output end on the lifting mechanism 2 to be fixed. The encoder 6 can encode photoelectric sensing and linear motion, increasing the accuracy of adjustment. In the up-and-down movement process, the drive motor drives the shaft 23 to rotate. The rotation of the shaft 23 causes the two shafts 23 to rotate simultaneously through the first gear 24. The rotation of the shaft 23 drives the two second gears 26 to rotate. The rotation of the second gears 26 drives the gear rack 214 to move up and down. The up-and-down movement of the gear rack 214 drives the slide 28 to move up and down, thereby enabling the up-and-down movement process. During the downward movement of the slide 28, the guide belt 299 is pulled to drive the limiting roller 298 to move downward. The movement of the limiting roller 298 is transmitted through the connecting frame 297, which in turn drives the connecting plate 295 to move, thereby compressing the spring 296. The elastic potential energy of the spring 296 enables the limiting roller 298 to stably contact and support the guide belt 299. During the upward movement of the slide 28, the elastic potential energy released by the spring 296 enables the limiting roller 298 to support the guide belt 299.

[0020] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A compact single-drive gantry structure, comprising a gantry frame (1), characterized in that: The top of the gantry frame (1) is provided with a y-axis mechanism (5), which is driven by a first linear motor. The top of the y-axis mechanism (5) is provided with an x-axis mechanism (4), which is driven by a second linear motor. The top of the gantry frame (1) is provided with an auxiliary rail (3) to assist the x-axis mechanism (4). An encoder (6) is installed on one side of the y-axis mechanism (5). A lifting mechanism (2) is provided on one side of the x-axis mechanism (4). The lifting mechanism (2) includes a support plate (21) fixed to the moving end of the x-axis mechanism (4). A drive motor is installed on one side of the support plate (21) and fixed inside the moving end of the x-axis mechanism (4). Two shafts (23) are provided on one side of the support plate (21). The output end of the drive motor is fixedly connected to one end of one shaft (23), and one end of the other shaft (23) is rotatably connected to one side of the support plate (21). The outer surfaces of the two shafts (23) are fixedly fitted with a first gear (24). One side of the support plate (21) is fixedly connected to a support shell (22). One end of the two shafts (23) rotatably passes through to the outside of the support shell (22). The outer surface of the support shell (22) is fixedly connected with a protective shell (25). One end of the shaft (23) is fixedly connected with a second gear (26). One side of the support shell (22) is provided with a slide (28). Both sides of the slide (28) are provided with grooves (212). The inner wall of the grooves (212) is fixedly connected with a toothed rack (214).

2. The compact single-drive gantry structure according to claim 1, characterized in that: The inner wall of the protective shell (25) is rotatably connected to the outer surface of the shaft (23), the two first gears (24) are meshed together, and the second gear (26) is meshed with the toothed rack (214).

3. The compact single-drive gantry structure according to claim 1, characterized in that: Two recessed frames (27) are fixedly connected to one side of the support shell (22), and a sliding plate (211) is fixedly connected to one side of the recessed frame (27). Sliding grooves (210) are provided on both sides of the sliding frame (28), and the inner wall of the sliding groove (210) is slidably connected to the outer surface of the sliding plate (211).

4. A compact single-drive gantry structure according to claim 3, characterized in that: A sliding plate (215) is fixedly connected to one side of the recess (27), and a limiting plate (216) is fixedly connected to one side of the sliding plate (215).

5. A compact single-drive gantry structure according to claim 4, characterized in that: The inner wall of the groove (212) has two limiting grooves (213). The inner wall of the groove (212) is slidably connected to the outer surface of the sliding plate (215), and the outer surface of the limiting plate (216) is slidably connected to the inner wall of the limiting groove (213).

6. A compact single-drive gantry structure according to claim 1, characterized in that: The top of the carriage (28) is provided with a support mechanism (29). The support mechanism (29) includes a fixed plate (291) fixed to the top of the moving end of the x-axis mechanism (4). A support plate (292) is fixedly connected to one side of the fixed plate (291). A baffle (293) is fixedly connected to the top of the fixed plate (291). A limit rod (294) is fixedly connected to the top of the support plate (292). The top of the limit rod (294) is fixedly connected to the bottom of the baffle (293). A connecting plate (295) is provided on the outer surface of the limit rod (294). A sliding hole is opened on the top of the connecting plate (295). The inner wall of the sliding hole is slidably connected to the outer surface of the limit rod (294).

7. A compact single-drive gantry structure according to claim 6, characterized in that: Two connecting frames (297) are slidably connected to the outer surface of the fixed plate (291). One side of the two connecting frames (297) is fixedly connected to the outer surface of the connecting plate (295). A limiting roller (298) is rotatably connected between one side of the two connecting frames (297). A guide belt (299) is provided on the outer surface of the limiting roller (298).

8. A compact single-drive gantry structure according to claim 7, characterized in that: Both ends of the conductor strip (299) are fixedly connected to wire fasteners (2910) for fixing the conductor strip (299). The bottom of the two wire fasteners (2910) are fixedly connected to the top of the slide (28) and the top of the moving end of the x-axis mechanism (4), respectively.

9. A compact single-drive gantry structure according to claim 6, characterized in that: The outer surface of the limiting rod (294) is provided with a spring (296), one end of the spring (296) is fixedly connected to the top of the support plate (292), and the other end of the spring (296) is fixedly connected to the bottom of the connecting plate (295).

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