XY mobile platform

Abstract

The utility model discloses a kind of XY moving platform, it is related to mechanical manufacturing technical field, wherein, XY moving platform includes base;First drive component includes first drive structure and along the first direction extension first X-axis guide rail and second X-axis guide rail, second drive component includes second drive structure and along the second direction extension first Y-axis guide rail and second Y-axis guide rail, second Y-axis guide rail is along the first direction sliding on first X-axis guide rail, second X-axis guide rail is along the second direction sliding on first Y-axis guide rail;First drive structure drive connecting block is along the first direction sliding, second drive structure drive connecting block is along the second direction sliding.The technical scheme provided by the utility model makes that upper and lower shafts are with load, lower shaft does not drive upper shaft movement, so that higher speed can be reached, the stability of entire moving platform is improved, and the movement of first direction and the movement of second direction do not interfere with each other, also improve the precision of movement.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and in particular to an XY mobile platform. Background Technology

[0002] As a fundamental device for motion control, the XY drive platform has a wide range of applications. Its basic function is to achieve high-precision movement of loads on a two-dimensional plane. Traditional XY drive platforms usually adopt a "layered" structure, in which one axial motion system is installed and fixed on top of another axial motion system. In this structure, the lower-level X-axis motion unit not only needs to bear its own workload, but also must simultaneously bear the entire mass of the upper-level axis motion unit. This means that the lower axis motor must provide greater driving torque and requires a high-power motor. However, if the motor power is fixed, it will limit the speed of the system. Utility Model Content

[0003] The main purpose of this invention is to propose an XY moving platform that aims to reduce the load on the lower axis and make the XY axes bear the same load.

[0004] To achieve the above objectives, the present invention proposes an XY mobile platform, comprising: Base; A first drive assembly, the first drive assembly includes a first drive structure disposed on the base and a first X-axis guide rail and a second X-axis guide rail extending along a first direction, the first X-axis guide rail being disposed on the base; The second drive assembly includes a second drive structure disposed on the base and a first Y-axis guide rail and a second Y-axis guide rail extending along a second direction. The first Y-axis guide rail is disposed on the base, and the second Y-axis guide rail is disposed above the first X-axis guide rail and slides along the first X-axis guide rail in a first direction. The second X-axis guide rail is disposed above the first Y-axis guide rail and slides along the first Y-axis guide rail in a second direction. A connecting block is disposed above the second X-axis guide rail and the second Y-axis guide rail. One end of the connecting block is slidably connected to the second X-axis guide rail, and the other end is slidably connected to the second Y-axis guide rail. The first driving structure drives the connecting block to slide along the first direction, and the second driving structure drives the connecting block to slide along the second direction.

[0005] In one embodiment, the XY mobile platform further includes: A first movable block is disposed above the first X-axis guide rail, and the first driving structure is drivenly connected to the first movable block to drive the first movable block to slide along the first direction on the first X-axis guide rail. The second Y-axis guide rail is disposed above the first movable block. The second moving block is located above the first Y-axis guide rail, and the second driving structure is driven to connect with the second moving block to drive the second moving block to slide along the second direction on the first Y-axis guide rail. The second X-axis guide rail is located above the second moving block.

[0006] In one embodiment, the first X-axis guide rail and the first Y-axis guide rail are spaced apart on the base along the second direction, and the second X-axis guide rail and the second Y-axis guide rail are spaced apart along the second direction.

[0007] In one embodiment, the connecting block extends along the second direction, and its two ends are respectively configured as a first connecting end and a second connecting end. The first moving block is slidably connected to the first X-axis guide rail via a slider, the second moving block is slidably connected to the first Y-axis guide rail via a slider, the first connecting end is slidably connected to the second Y-axis guide rail via a slider, and the second connecting end is slidably connected to the second X-axis guide rail via a slider.

[0008] In one embodiment, the first driving structure includes a first driving motor, a first connecting rod, and a second connecting rod. The first driving motor is driven to the first connecting rod to drive the first connecting rod to rotate. The first connecting rod extends radially along the output end of the first driving motor. The end of the first connecting rod away from the first driving motor is rotatably connected to the second connecting rod. The end of the second connecting rod away from the first connecting rod is hinged to the first moving block. The first driving motor drives the first connecting rod to rotate, thereby enabling the second connecting rod to drive the first moving block to move along the first direction on the first X-axis guide rail. The first moving block drives the connecting block to move along the first direction, so that the second connecting end slides along the first direction on the second X-axis guide rail.

[0009] In one embodiment, the second driving structure includes a second driving motor, a third link, and a fourth link. The second driving motor is driven to the third link to drive the third link to rotate. The third link extends radially along the output end of the second driving motor. The end of the third link away from the second driving motor is rotatably connected to the fourth link. The end of the fourth link away from the third link is hinged to the second moving block. The second driving motor drives the third link to rotate, thereby enabling the fourth link to drive the second moving block to move along the second direction on the first Y-axis guide rail. The second moving block drives the connecting block to move along the second direction, so that the first connecting end slides along the second direction on the second Y-axis guide rail.

[0010] In one embodiment, the first link and the third link are configured as eccentric links.

[0011] In one embodiment, the XY mobile platform further includes a first mounting bracket and a second mounting bracket mounted on the base. The first drive motor is mounted on the first mounting bracket, and the output end of the first drive motor passes through the first mounting bracket and is connected to the first connecting rod, driving the first connecting rod to rotate synchronously. The second drive motor is mounted on the second mounting bracket, and the output end of the second drive motor passes through the second mounting bracket and is connected to the third connecting rod, driving the third connecting rod to rotate synchronously.

[0012] In one embodiment, the output end of the first drive motor is provided with a first drive shaft, which is connected to the first connecting rod key to drive the first connecting rod to rotate. The output end of the second drive motor is provided with a second drive shaft, which is connected to the third connecting rod key to drive the third connecting rod to rotate.

[0013] In one embodiment, a first reading head is provided on one side of the first moving block, and the first reading head is used to read the position of the first moving block in the first direction. A second reading head is provided on one side of the second moving block, and the second reading head is used to read the position of the second moving block in the second direction.

[0014] In the technical solution of this utility model, the XY mobile platform includes a base, on which a connecting block, a first driving component, and a second driving component are disposed. The first driving component includes a first X-axis guide rail and a second X-axis guide rail extending along a first direction. The second driving component includes a first Y-axis guide rail and a second Y-axis guide rail extending along a second direction. The first X-axis guide rail and the first Y-axis guide rail are both mounted on the upper part of the base. The second Y-axis guide rail is slidably disposed above the first X-axis guide rail. The first X-axis guide rail and the second Y-axis guide rail are vertically staggered. One end of the connecting block is slidably disposed above the second X-axis guide rail, and the other end is slidably disposed above the second Y-axis guide rail. When the first driving structure drives the connecting block to move along the first direction, one end of the connecting block slides along the first direction on the first X-axis guide rail via the second Y-axis guide rail, and the other end slides along the first direction on the second X-axis guide rail, thus realizing that the entire connecting block slides along the first direction. Similarly, when the second driving structure drives the connecting block to move along the first direction, one end of the connecting block slides along the first direction on the first X-axis guide rail via the second Y-axis guide rail, and the other end slides along the first direction on the second X-axis guide rail, thus realizing that the connecting block slides along the first direction as a whole. When the structurally driven connecting block moves along the second direction, one end of the connecting block slides along the second direction on the first Y-axis guide rail via the second X-axis guide rail, and the other end slides along the second direction on the second Y-axis guide rail, realizing that the connecting block as a whole slides along the second direction. That is, both the first driving structure and the second driving structure can drive the connecting block to move along the first and second directions independently. Moreover, whether the connecting block moves along the first direction or the second direction, neither the first driving structure nor the second driving structure needs to bear the load of the other. Therefore, it is not necessary to select a high-power motor to overcome the large load, thereby reducing the size and weight of the equipment and thus reducing costs. The staggered guide rails allow the upper and lower shafts to bear the same load, and the lower shaft does not need to drive the upper shaft to move, which enables higher speed and smaller size. Furthermore, the first driving structure and the second driving structure are at the same height, which can also avoid stacking and increasing the overall height, thus affecting the stability of the connecting block's movement. This not only improves the stability of the entire moving platform, but also improves the accuracy of movement because the movement in the first direction and the movement in the second direction do not interfere with each other. 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of an embodiment of the XY mobile platform provided by this utility model; Figure 2 A schematic diagram of another embodiment of the XY mobile platform provided by this utility model; Figure 3 An exploded view of the XY mobile platform provided by this utility model.

[0017] Explanation of icon numbers: 100. Base; 200, First drive assembly; 210, First drive structure; 211, First drive motor; 212, First connecting rod; 213, Second connecting rod; 214, First mounting bracket; 220, First X-axis guide rail; 230, Second X-axis guide rail; 300. Second drive assembly; 310. Second drive structure; 311. Second drive motor; 312. Third link; 313. Fourth link; 314. Second mounting bracket; 320. First Y-axis guide rail; 330. Second Y-axis guide rail; 400. Connecting block; 500, First moving block; 510, Second moving block.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] 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 scope of protection of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] As a fundamental device for motion control, the XY drive platform has a wide range of applications. Its basic function is to achieve high-precision movement of loads on a two-dimensional plane. Traditional XY drive platforms usually adopt a "layered" structure, in which one axial motion system is installed and fixed on top of another axial motion system. In this structure, the lower-level X-axis motion unit not only needs to bear its own workload, but also must simultaneously bear the entire mass of the upper-level axis motion unit. This means that the lower axis motor must provide greater driving torque and requires a high-power motor. However, if the motor power is fixed, it will limit the speed of the system.

[0023] This utility model proposes an XY mobile platform.

[0024] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the XY mobile platform includes: Base 100; A first drive assembly 200 includes a first drive structure 210 disposed on the base 100 and a first X-axis guide rail 220 and a second X-axis guide rail 230 extending along a first direction, wherein the first X-axis guide rail 220 is disposed on the base 100. The second drive assembly 300 includes a second drive structure 310 disposed on the base 100 and a first Y-axis guide rail 320 and a second Y-axis guide rail 330 extending along a second direction. The first Y-axis guide rail 320 is disposed on the base 100, the second Y-axis guide rail 330 is disposed above the first X-axis guide rail 220 and slides on the first X-axis guide rail 220 along a first direction, and the second X-axis guide rail 230 is disposed above the first Y-axis guide rail 320 and slides on the first Y-axis guide rail 320 along a second direction; and A connecting block 400 is disposed above the second X-axis guide rail 230 and the second Y-axis guide rail 330. One end of the connecting block 400 is slidably connected to the second X-axis guide rail 230, and the other end is slidably connected to the second Y-axis guide rail 330. The first driving structure 210 drives the connecting block 400 to slide along the first direction, and the second driving structure 310 drives the connecting block 400 to slide along the second direction.

[0025] In the technical solution of this utility model, the XY mobile platform includes a base 100, on which a connecting block 400, a first drive assembly 200, and a second drive assembly 300 are disposed. The first drive assembly 200 includes a first X-axis guide rail 220 and a second X-axis guide rail 230 extending along a first direction. The second drive assembly 300 includes a first Y-axis guide rail 320 and a second Y-axis guide rail 330 extending along a second direction. The first X-axis guide rail 220 and the first Y-axis guide rail 320 are both mounted on the upper part of the base 100. The second Y-axis guide rail 330 is slidably disposed above the first X-axis guide rail 220. The connecting block 400 is slidably positioned above the first Y-axis guide rail 320. The first X-axis guide rail 220 and the second Y-axis guide rail 330 are vertically staggered. One end of the connecting block 400 is slidably positioned above the second X-axis guide rail 230, and the other end is slidably positioned above the second Y-axis guide rail 330. When the first driving structure 210 drives the connecting block 400 to move along the first direction, one end of the connecting block 400 slides along the first direction on the first X-axis guide rail 220 via the second Y-axis guide rail 330, and the other end slides along the first direction on the second X-axis guide rail 230, thus achieving... The connecting block 400 slides entirely along the first direction. Similarly, when the second driving structure 310 drives the connecting block 400 to move along the second direction, one end of the connecting block 400 slides along the second direction on the first Y-axis guide rail 320 via the second X-axis guide rail 230, and the other end slides along the second direction on the second Y-axis guide rail 330, thus realizing that the connecting block 400 slides entirely along the second direction. That is, both the first driving structure 210 and the second driving structure 310 can independently drive the connecting block 400 to move along the first and second directions, and regardless of whether the connecting block 400 moves along the first or the second direction, the first driving structure 210 and the second driving structure 310 can move together. The second drive structure 310 does not need to bear the load of the other, so there is no need to select a high-power motor to overcome the large load, thereby reducing the size and weight of the equipment and thus reducing the cost. The staggered guide rails allow the upper and lower shafts to bear the same load, and the lower shaft does not need to drive the upper shaft to move, which enables higher speed and smaller size. Furthermore, the first drive structure 210 and the second drive structure 310 are at the same height, which can also avoid stacking and increasing the overall height, thus affecting the stability of the movement of the connecting block 400. This not only improves the stability of the entire moving platform, but also ensures that the movement in the first direction and the movement in the second direction do not interfere with each other, thus improving the accuracy of movement.

[0026] Specifically, this XY moving platform can be applied in fields such as semiconductor manufacturing, laser processing, or automated assembly to drive the movement of manipulators to pick up and place parts of workpieces. The platform has a wide range of applications, which will not be elaborated upon here. In this embodiment, the shape, height, and material of the base 100 are not limited, as long as it has a mounting plane. In this embodiment, the first driving component 200 and the second driving component 300 are both mounted on the upper surface of the base 100, and the driving connecting block 400 moves along the first and second directions on the upper surface of the base 100. A first X-axis guide rail 220 extending along the first direction and a first Y-axis guide rail 320 extending along the second direction are provided on the base 100. A second Y-axis guide rail 330 is provided on the first X-axis guide rail 220, and the second Y-axis guide rail 330 slides along the first direction on the first X-axis guide rail 220. The first X-axis guide rail 220 is arranged intersectingly. Similarly, a second X-axis guide rail 230 is slidably arranged on the first Y-axis guide rail 320. The second X-axis guide rail 230 slides along the second direction on the first Y-axis guide rail 320. The second X-axis guide rail 230 and the first Y-axis guide rail 320 are arranged intersectingly. The lengths of the first X-axis guide rail 220, the second X-axis guide rail 230, the first Y-axis guide rail 320 and the second Y-axis guide rail 330 are not limited, nor is the shape of the connecting block 400. However, the length of the connecting block 400 must be greater than the length of the second Y-axis guide rail 330 to ensure that one end is slidably arranged on the second Y-axis guide rail 330 and the other end is slidably arranged on the second X-axis guide rail 230. In one embodiment, the first drive structure 210 and the second drive structure 310 can be the same or different structures, such as cylinders, electric telescopic rods, lead screw modules, etc., to achieve linear drive. No limitation is made here. Furthermore, the mobile platform in this application is suitable for space-constrained scenarios, such as driving the connecting block 400 to move a short distance to achieve precise material picking or placing.

[0027] In an embodiment of this utility model, the XY mobile platform further includes: The first moving block 500 is disposed above the first X-axis guide rail 220, and the first driving structure 210 is drivingly connected to the first moving block 500 to drive the first moving block 500 to slide along the first direction on the first X-axis guide rail 220. The second Y-axis guide rail 330 is disposed above the first moving block 500. The second moving block 510 is disposed above the first Y-axis guide rail 320, and the second driving structure 310 is drivingly connected to the second moving block 510 to drive the second moving block 510 to slide along the second direction on the first Y-axis guide rail 320. The second X-axis guide rail 230 is disposed above the second moving block 510.

[0028] Please refer to Figure 1and Figure 3 The first drive structure 210 and the second drive structure 310 are vertically arranged on the base 100, and their output ends are also vertical. The shape and material of the first moving block 500 and the second moving block 510 are not limited. The first moving block 500 is arranged between the first X-axis guide rail 220 and the second Y-axis guide rail 330. The lower end of the first moving block 500 is slidably connected to the first X-axis guide rail 220, and the upper end is mounted on the second Y-axis guide rail 330. The connecting block 400 is also slidably arranged on the second Y-axis guide rail 330. The output end of the first drive structure 210 is drivenly connected to the first moving block 500 to drive the first moving block 500 to slide along the first direction on the first X-axis guide rail 220, thereby driving the second Y-axis guide rail 330 and the connecting block 400 on the first moving block 500 to slide along the first direction. The other end of the connecting block 400 slides along the first direction on the second X-axis guide rail 230, so that the connecting block 400 as a whole slides along the first direction. The second moving block 510 is arranged between the first X-axis guide rail 220 and the second moving block 310. Between the first Y-axis guide rail 320 and the second X-axis guide rail 230, the lower part of the second moving block 510 is slidably connected to the first Y-axis guide rail 320, and the upper end is mounted on the second X-axis guide rail 230. The connecting block 400 is also slidably disposed on the second X-axis guide rail 230. The output end of the second driving structure 310 is drivenly connected to the second moving block 510 to drive the second connecting block 400 to slide along the second direction on the first Y-axis guide rail 320, thereby driving the second X-axis guide rail 230 and the connecting block 400 on the second moving block 510 to slide along the second direction. The other end of the connecting block 400 slides along the second direction on the second Y-axis guide rail 330 on the first moving block 500, so that the connecting block 400 slides as a whole along the second direction. The sliding in the first direction and the sliding in the second direction are independent of each other and do not interfere with each other. By introducing the first moving block 500 and the second moving block 510, the sliding of the second X-axis guide rail 230, the second Y-axis guide rail 330 and the connecting block 400 is more stable.

[0029] In an embodiment of this utility model, the first X-axis guide rail 220 and the first Y-axis guide rail 320 are spaced apart on the base 100 along the second direction, and the second X-axis guide rail 230 and the second Y-axis guide rail 330 are spaced apart along the second direction. The first moving block 500 is on the first X-axis guide rail 220, and the second moving block 510 slides on the first Y-axis guide rail 320 along the second direction. When moving towards the first X-axis guide rail 220 and getting close to it, the first moving block 500 restricts the movement of the second moving block 510, that is, the second moving block 510 cannot get close to the first X-axis guide rail 220. The spaced arrangement of the first X-axis guide rail 220 and the first Y-axis guide rail 320 can also avoid the waste of the first Y-axis guide rail 320 and reduce costs. The distance between the second Y-axis guide rail 330 and the second X-axis guide rail 230 is controlled by the distance between the first moving block 500 and the second moving block 510.

[0030] In an embodiment of this utility model, the connecting block 400 extends along the second direction, and its two ends are respectively configured as a first connecting end and a second connecting end. The first moving block 500 is slidably connected to the first X-axis guide rail 220 via a slider, the second moving block 510 is slidably connected to the first Y-axis guide rail 320 via a slider, the first connecting end is slidably connected to the second Y-axis guide rail 330 via a slider, and the second connecting end is slidably connected to the second X-axis guide rail 230 via a slider.

[0031] Please refer to Figure 1 In one embodiment, the first X-axis guide rail 220 is disposed at a position where the first Y-axis guide rail 320 extends along the second direction. In order to ensure that the connecting block 400 can slide along the first direction on the first X-axis guide rail 220 with the first moving block 500 and along the second direction on the first Y-axis guide rail 320 with the second moving block 510, the connecting block 400 is configured to extend along the second direction. The first connecting end slides on the second Y-axis guide rail 330 above the first moving block 500 via a slider, and the second connecting end slides on the second X-axis guide rail 230 above the second moving block 510 via a slider. Correspondingly, the bottom of the first moving block 500 slides along the first direction on the first X-axis guide rail 220 via a slider, and the second moving block 510 slides along the second direction on the first Y-axis guide rail 320 via a slider.

[0032] When the first driving structure 210 drives the first moving block 500 to move along the first direction, the bottom of the first moving block 500 slides along the first X-axis guide rail 220 in the first direction, and drives the first connecting end to move along the first direction. The first connecting end drives the second connecting end to slide along the first direction on the second X-axis guide rail 230, thus realizing that the first driving structure 210 drives the first moving block 500 and the connecting block 400 to move along the first direction. When the second driving structure 310 drives the second moving block 510 to move along the second direction, the bottom of the second moving block 510 slides along the second direction on the first Y-axis guide rail 320, and drives the second connecting end to move along the first direction. The first connecting end moves along the second direction, and the second connecting end drives the first connecting end to slide along the second direction on the second Y-axis guide rail 330. This enables the second driving structure 310 to drive the second moving block 510 and the connecting block 400 to move along the second direction. If it is desired that the connecting block 400 moves along both the first and second directions, the first driving structure 210 and the second driving structure 310 can be activated simultaneously. The first driving structure 210 drives the first moving block 500 to move along the first direction, and the second driving structure 310 drives the second moving block 510 to move along the second direction, allowing the connecting block 400 to achieve a combined motion in both directions. The first driving structure 210 and the second driving structure 310 have the same driving load, reducing the power of the driving structure and thus reducing the cost.

[0033] In another embodiment, the first Y-axis guide rail 320 is positioned at a location where the first X-axis guide rail 220 extends along a first direction, at which point the connecting block 400 extends along the first direction.

[0034] In an embodiment of this utility model, the first driving structure 210 includes a first driving motor 211, a first connecting rod 212, and a second connecting rod 213. The first driving motor 211 is drivingly connected to the first connecting rod 212 to drive the first connecting rod 212 to rotate. The first connecting rod 212 extends radially along the output end of the first driving motor 211. The end of the first connecting rod 212 away from the first driving motor 211 is rotatably connected to the second connecting rod 213. The end of the second connecting rod 213 away from the first connecting rod 212 is hinged to the first moving block 500, so that the first driving motor 211 drives the first connecting rod 212 to rotate, thereby enabling the second connecting rod 213 to drive the first moving block 500 to move along the first direction on the first X-axis guide rail 220. The first moving block 500 drives the connecting block 400 to move along the first direction, so that the second connecting end slides on the second X-axis guide rail 230 along the first direction.

[0035] Please refer to Figure 1 and Figure 2 The first drive structure 210 includes a first drive motor 211, which is mounted on the base 100 along a second direction, with its output end extending along the second direction. One end of a first connecting rod 212 is connected to the output end of the first drive motor 211 at its shaft center, and the other end is located away from the shaft center of the first drive motor 211 and is drivenly connected to a second connecting rod 213. The second connecting rod 213 extends radially along its output end. Since both ends of the second connecting rod 213 are rotatably connected to the first connecting rod 212 and the first moving block 500 respectively, as... Figure 2 As shown, when the first drive motor 211 drives the first connecting rod 212 to rotate clockwise, it drives the second connecting rod 213 to move in the first direction away from the first drive motor 211. The second connecting rod drives the first moving block 500 to move in the first direction, so that the first moving block 500 drives the first connecting end to slide in the first direction. The second connecting end automatically slides in the first direction on the second X-axis guide rail 230 through the slider.

[0036] In one embodiment, the first drive structure 210 may be a cylinder, an electric telescopic rod or a hydraulic cylinder, etc., with its piston rod extending along the first direction and directly connected to the first moving block 500. The extension of the piston rod causes the first moving block 500 to slide along the first direction on the first X-axis guide rail 220, thereby driving the connecting block 400 to slide along the first direction.

[0037] In an embodiment of this utility model, the second driving structure 310 includes a second driving motor 311, a third connecting rod 312, and a fourth connecting rod 313. The second driving motor 311 is drivingly connected to the third connecting rod 312 to drive the third connecting rod 312 to rotate. The third connecting rod 312 extends radially along the output end of the second driving motor 311. One end of the third connecting rod 312 away from the second driving motor 311 is rotatably connected to the fourth connecting rod 313. One end of the fourth connecting rod 313 away from the third connecting rod 312 is hinged to the second moving block 510, so that the second driving motor 311 drives the third connecting rod 312 to rotate, thereby enabling the fourth connecting rod 313 to drive the second moving block 510 to move along the second direction on the first Y-axis guide rail 320. The second moving block 510 drives the connecting block 400 to move along the second direction, so that the first connecting end slides along the second direction on the second Y-axis guide rail 330.

[0038] Please refer to Figure 1 The second drive structure 310 includes a second drive motor 311, which is mounted on the base 100 along a first direction, with its output end extending along the first direction. One end of the third link 312 is connected to the output end of the second drive motor 311 at its shaft center, and the other end is located away from the shaft center of the second drive motor 311 and is drivenly connected to a fourth link 313. The fourth link 313 extends radially along its output end. Since both ends of the fourth link 313 are rotatably connected to the third link 312 and the second moving block 510 respectively, as... Figure 1 As shown, when the second drive motor 311 drives the third link 312 to rotate counterclockwise, it drives the fourth link 313 to move in the second direction away from the second drive motor 311. The second connecting rod drives the second moving block 510 to move in the second direction, so that the second moving block 510 drives the second connecting end to slide in the second direction. The first connecting end automatically slides in the second direction on the second Y-axis guide rail 330 through the slider.

[0039] In one embodiment, the second drive structure 310 may be a cylinder, an electric telescopic rod, or a hydraulic cylinder, etc., with its piston rod extending along the second direction and directly connected to the second moving block 510. The extension of the piston rod causes the first moving block 500 to slide along the second direction on the first Y-axis guide rail 320, thereby driving the connecting block 400 to slide along the second direction.

[0040] In an embodiment of this utility model, the first connecting rod 212 and the third connecting rod 312 are configured as eccentric connecting rods. The eccentric connecting rods can convert rotational motion into linear reciprocating motion. The rotation center of the eccentric connecting rods is offset from the geometric center. One end is coaxially connected to the output end of the first drive motor 211, and the other end is rotatably connected to the second connecting rod 213, converting the rotation of the first connecting rod 212 into the linear reciprocating motion of the second connecting rod 213. One end of the first connecting rod 212 rotates with the output end of the first drive motor 211, and the other end performs circular motion accordingly. By rotating with the second connecting rod 213, the second connecting rod 213 performs linear motion. The eccentric connecting rod configuration makes the linear movement more stable and more accurate. By changing the length of the eccentric connecting rod, the moving distance of the second connecting rod 213 can be adjusted. The same applies to the second drive motor 311 driving the rotation of the third connecting rod 312, which will not be described in detail here.

[0041] In an embodiment of this utility model, the XY mobile platform further includes a first mounting bracket 214 and a second mounting bracket 314 mounted on the base 100. A first drive motor 211 is mounted on the first mounting bracket 214, and the output end of the first drive motor 211 passes through the first mounting bracket 214 and connects to the first connecting rod 212, driving the first connecting rod 212 to rotate synchronously. A second drive motor 311 is mounted on the second mounting bracket 314, and the output end of the second drive motor 311 passes through the second mounting bracket 314 and connects to the third connecting rod 312, driving the third connecting rod 312 to rotate synchronously. The first mounting bracket 214 and the second mounting bracket 314 are both configured as motor mounting plates. The motor mounting plates are vertically mounted on the top of the base 100 and connected to the base 100 by screws. The output ends of the first drive motor 211 and the second drive motor 311 are mounted on the motor mounting plates and fixed to the motor mounting plates by screws. The output end of the first drive motor 211 passes through the first mounting bracket 214 and the first connecting rod 212 for driving, and the output end of the second drive motor 311 passes through the second mounting bracket 314 and the third connecting rod 312 for driving. This not only makes the installation of the first drive motor 211 and the second drive motor 311 more stable, but also reduces the drive load.

[0042] In an embodiment of this utility model, the output end of the first drive motor 211 is provided with a first drive shaft, which is keyed to the first connecting rod 212 to drive the first connecting rod 212 to rotate. The output end of the second drive motor 311 is provided with a second drive shaft, which is keyed to the third connecting rod 312 to drive the third connecting rod 312 to rotate. The keyed connection can reliably transmit the torque of the motor to the eccentric connecting rod without removing the motor end cover, making installation and disassembly convenient and the connection cost low.

[0043] In an embodiment of this utility model, a first reading head is provided on one side of the first moving block 500. The first reading head is used to read the position of the first moving block 500 in the first direction. A second reading head is provided on one side of the second moving block 510. The second reading head is used to read the position of the second moving block 510 in the second direction. By reading the position of the first moving block 500 in the first direction with the first reading head and the position of the second moving block 510 in the second direction with the second reading head, the position of the connecting block 400 in the first and second directions can be obtained, making the position correction more accurate.

[0044] In one embodiment, if the first drive motor 211 and the second drive motor 311 are servo motors, they inherently possess data acquisition capabilities. Combined with the first and second reading heads, position movement can be made more precise. Furthermore, since the first drive motor 211 and the second drive motor 311 drive the connecting block 400 to move via an eccentric connecting rod, the position control is not linear. By installing the first reading head on the first moving block 500 and the second reading head on the second moving block 510, linear movement can be achieved through readings, resulting in higher control precision. In another embodiment, when the first drive motor 211 and the second drive motor 311 are voice coil motors, linear motors, or other motors without encoders, the first and second reading heads can also be used to acquire position data.

[0045] In one embodiment, the first reading head and the second reading head have the same structure. A magnetic grating reading head can be used, with a magnetic strip attached to the side of the first X-axis guide rail 220 and the first Y-axis guide rail 320. Alternatively, a glass grating reading head, a steel strip grating reading head, a capacitive grating ruler reading head, etc., can also be used, and no limitation is made here.

[0046] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. An XY mobile platform, characterized in that, include: Base; A first drive assembly, the first drive assembly includes a first drive structure disposed on the base and a first X-axis guide rail and a second X-axis guide rail extending along a first direction, the first X-axis guide rail being disposed on the base; The second drive assembly includes a second drive structure disposed on the base and a first Y-axis guide rail and a second Y-axis guide rail extending along a second direction. The first Y-axis guide rail is disposed on the base, the second Y-axis guide rail is disposed above the first X-axis guide rail and slides along the first X-axis guide rail in a first direction, and the second X-axis guide rail is disposed above the first Y-axis guide rail and slides along the first Y-axis guide rail in a second direction. as well as A connecting block is disposed above the second X-axis guide rail and the second Y-axis guide rail. One end of the connecting block is slidably connected to the second X-axis guide rail, and the other end is slidably connected to the second Y-axis guide rail. The first driving structure drives the connecting block to slide along the first direction, and the second driving structure drives the connecting block to slide along the second direction.

2. The XY mobile platform as described in claim 1, characterized in that, The XY mobile platform also includes: A first movable block is disposed above the first X-axis guide rail, and the first driving structure is drivenly connected to the first movable block to drive the first movable block to slide along the first direction on the first X-axis guide rail. The second Y-axis guide rail is disposed above the first movable block. The second moving block is located above the first Y-axis guide rail, and the second driving structure is driven to connect with the second moving block to drive the second moving block to slide along the second direction on the first Y-axis guide rail. The second X-axis guide rail is located above the second moving block.

3. The XY mobile platform as described in claim 2, characterized in that, The first X-axis guide rail and the first Y-axis guide rail are spaced apart on the base along the second direction, and the second X-axis guide rail and the second Y-axis guide rail are spaced apart along the second direction.

4. The XY mobile platform as described in claim 2, characterized in that, The connecting block extends along the second direction, and its two ends are respectively configured as a first connecting end and a second connecting end. The first moving block is slidably connected to the first X-axis guide rail via a slider, the second moving block is slidably connected to the first Y-axis guide rail via a slider, the first connecting end is slidably connected to the second Y-axis guide rail via a slider, and the second connecting end is slidably connected to the second X-axis guide rail via a slider.

5. The XY mobile platform as described in claim 4, characterized in that, The first driving structure includes a first driving motor, a first connecting rod, and a second connecting rod. The first driving motor is drivingly connected to the first connecting rod to drive the first connecting rod to rotate. The first connecting rod extends radially along the output end of the first driving motor. The end of the first connecting rod away from the first driving motor is rotatably connected to the second connecting rod. The end of the second connecting rod away from the first connecting rod is hinged to the first moving block. The first driving motor drives the first connecting rod to rotate, thereby enabling the second connecting rod to drive the first moving block to move along the first direction on the first X-axis guide rail. The first moving block drives the connecting block to move along the first direction, so that the second connecting end slides along the first direction on the second X-axis guide rail.

6. The XY mobile platform as described in claim 5, characterized in that, The second drive structure includes a second drive motor, a third link, and a fourth link. The second drive motor is driven to the third link to drive the third link to rotate. The third link extends radially along the output end of the second drive motor. The end of the third link away from the second drive motor is rotatably connected to the fourth link. The end of the fourth link away from the third link is hinged to the second moving block. The second drive motor drives the third link to rotate, thereby enabling the fourth link to drive the second moving block to move along the second direction on the first Y-axis guide rail. The second moving block drives the connecting block to move along the second direction, so that the first connecting end slides along the second direction on the second Y-axis guide rail.

7. The XY mobile platform as described in claim 6, characterized in that, The first link and the third link are configured as eccentric links.

8. The XY mobile platform as described in claim 6, characterized in that, The XY mobile platform further includes a first mounting bracket and a second mounting bracket mounted on the base. The first drive motor is mounted on the first mounting bracket, and the output end of the first drive motor passes through the first mounting bracket and is connected to the first connecting rod, driving the first connecting rod to rotate synchronously. The second drive motor is mounted on the second mounting bracket, and the output end of the second drive motor passes through the second mounting bracket and is connected to the third connecting rod, driving the third connecting rod to rotate synchronously.

9. The XY mobile platform as described in claim 6, characterized in that, The output end of the first drive motor is provided with a first drive shaft, which is connected to the first connecting rod key to drive the first connecting rod to rotate. The output end of the second drive motor is provided with a second drive shaft, which is connected to the third connecting rod key to drive the third connecting rod to rotate.

10. The XY mobile platform as described in any one of claims 2-9, characterized in that, A first reading head is provided on one side of the first moving block, and the first reading head is used to read the position of the first moving block in the first direction. A second reading head is provided on one side of the second moving block, and the second reading head is used to read the position of the second moving block in the second direction.

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