A guideway-free truss robot

Abstract

This utility model relates to the field of robotics technology and discloses a rail-free gantry robot, including three columns with a crossbar fixedly connected to the top. It also includes a mounting base slidably mounted on the outside of the crossbar, on which the robot body is fixedly mounted. A bracket is fixedly mounted on the side of the mounting base, and a transmission component that drives the robot body to move on the crossbar is mounted on the bracket. This utility model features a bearing-supported worm gear, reducing rotational friction loss, improving worm gear transmission efficiency, and ensuring smoother power transmission. The rubber strip on the outer ring of the moving wheel increases friction with the crossbar, preventing slippage and ensuring stable movement of the mounting base and the robot body. The worm gear transmission has self-locking properties; when the motor stops, the moving wheel stops, ensuring precise and stable positioning of the robot body.

Description

Technical Field

[0001] This utility model relates to the field of robotics technology, specifically to a rail-free gantry robot. Background Technology

[0002] With the rapid development of intelligent manufacturing, the automation level of machining equipment is becoming increasingly higher, replacing heavy human labor and being widely used in the manufacturing industry. A production line typically requires multiple robots working in coordination, but robots are expensive. Therefore, the concept of gantry robots has emerged. Gantry robots are mechanical devices developed based on loading and unloading mechanisms, mainly used to achieve automatic loading and unloading and workpiece handling, completing both single-machine automation and production line automation, simplifying the production line structure and reducing manufacturing costs.

[0003] Currently, in traditional gantry robots, the power transmission structure used to move the robot body may be poorly designed, often employing ordinary gear drives or other transmission methods. These methods generate significant friction during transmission, leading to substantial energy loss. Even simple gear meshing not only consumes extra energy and reduces transmission efficiency due to friction, but can also generate heat, affecting the lifespan and stability of transmission components. Utility Model Content

[0004] The purpose of this invention is to provide a rail-free gantry robot to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rail-free gantry robot, comprising three columns, each with a crossbar fixedly connected to its top, and further comprising:

[0006] A mounting base is slidably installed on the outside of a crossbar. The robot body is fixedly installed on the mounting base. A bracket is fixedly installed on the side of the mounting base. A transmission component that drives the robot body to move on the crossbar is installed on the bracket. A truss structure foundation is built through the columns and crossbar. The mounting base slides on the crossbar to provide a moving carrier for the robot body. The transmission component provides power for the movement of the mounting base and the robot body on the crossbar.

[0007] Preferably, the transmission assembly includes a motor fixedly mounted on the top of the bracket, a worm gear fixedly mounted on the output end of the motor via a coupling, a fixed plate fixedly mounted on the bracket, a worm wheel rotatably mounted on the fixed plate, the worm wheel meshing with the worm, and a movable wheel fixedly mounted on the bottom of the worm wheel. When the motor starts, it drives the worm gear to rotate via the coupling. Since the worm wheel meshes with the worm gear, the rotation of the worm gear drives the rotation of the worm wheel, which in turn drives the movable wheel fixedly connected at the bottom to rotate. The movable wheel contacts the crossbar, and the friction causes the mounting base and the robot body to move on the crossbar.

[0008] Preferably, a bearing is rotatably mounted on the outer side of the worm gear, and the bearing is fixedly mounted on the top of the bracket. The bearing reduces the frictional loss of the worm gear rotation and improves the transmission efficiency.

[0009] Preferably, the outer rim of the movable wheel is fixedly equipped with a rubber strip to enhance friction, thereby improving the stability and reliability of movement.

[0010] Preferably, the bottom of the bracket is rotatably mounted with support wheels, and two support wheels are symmetrically arranged. The support wheels improve the load-bearing capacity of the overall structure and make the robot run more stably; the limit wheels effectively prevent the mounting base from shifting during movement and ensure the straightness of movement.

[0011] Preferably, a limiting wheel is rotatably mounted on the mounting base, and two rollers are rotatably mounted on both sides of the bottom of the bracket located on the moving wheel. The rollers further enhance the stability of the mounting base movement and reduce shaking during the movement.

[0012] Preferably, the bottom of the column is fixedly connected to a fixing seat, and the fixing seat is equipped with fixing bolts.

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

[0014] This utility model features a bearing-supported worm gear, reducing rotational friction loss, improving worm gear transmission efficiency, and making power transmission smoother. The rubber strip on the outer ring of the moving wheel increases the friction with the crossbar, preventing slippage and ensuring stable movement of the mounting base and the robot body. The worm gear transmission has self-locking properties, so the moving wheel stops when the motor stops, ensuring precise and stable positioning of the robot body. Attached Figure Description

[0015] Figure 1 A schematic diagram of the main structure of the rail-free gantry robot provided by this utility model;

[0016] Figure 2 A schematic diagram of the connection structure between the mounting base and the robot body provided by this utility model;

[0017] Figure 3A schematic diagram of the transmission component structure provided by this utility model;

[0018] Figure 4 A schematic diagram of the bottom structure of the bracket provided by this utility model.

[0019] In the diagram: 1. Column; 2. Crossbar; 3. Mounting base; 4. Robot body; 5. Bracket; 6. Transmission assembly; 61. Motor; 62. Worm gear; 63. Fixing plate; 64. Worm wheel; 65. Moving wheel; 7. Bearing; 8. Support wheel; 9. Limiting wheel; 10. Roller; 11. Fixing base. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 As shown, a rail-free truss robot includes three columns 1, each with a crossbar 2 fixedly connected to its top. It also includes a mounting base 3 slidably mounted on the outside of the crossbar 2, on which a robot body 4 is fixedly mounted. A support 5 is fixedly mounted on the side of the mounting base 3, and a transmission component 6 is mounted on the support 5 to drive the robot body 4 to move on the crossbar 2. The columns 1 and crossbar 2 form the foundation of the truss structure. The mounting base 3 slides on the crossbar 2, providing a moving platform for the robot body 4. The transmission component 6 provides power for the movement of the mounting base 3 and the robot body 4 on the crossbar 2. The overall structure is simple to build and provides a stable moving frame for the robot body 4, facilitating the robot's movement within a certain spatial range.

[0022] The transmission assembly 6 includes a motor 61 fixedly mounted on the top of the bracket 5. A worm gear 62 is fixedly mounted on the output end of the motor 61 via a coupling. A fixing plate 63 is fixedly mounted on the bracket 5, and a worm wheel 64 is rotatably mounted on the fixing plate 63. The worm wheel 64 meshes with the worm gear 62, and a movable wheel 65 is fixedly mounted on the bottom of the worm wheel 64. A bearing 7 is rotatably mounted on the outer side of the worm gear 62 and is fixedly mounted on the top of the bracket 5. A rubber strip to increase friction is fixedly mounted on the outer ring of the movable wheel 65. When the motor 61 starts, it drives the worm gear 62 to rotate via the coupling. Because the worm wheel 64 meshes with the worm gear 62, the rotation of the worm gear 62 drives the worm wheel 64 to rotate. The rotation of the worm gear 64 drives the rotating wheel 65, which is fixedly connected to the bottom, to rotate. The rotating wheel 65 contacts the crossbar 2, and the friction causes the mounting base 3 and the robot body 4 to move on the crossbar 2. The bearing 7 supports the worm gear 62 and reduces its rotational friction. The rubber strip increases the friction between the rotating wheel 65 and the crossbar 2 to prevent slippage. The worm gear transmission has self-locking properties, which can ensure that the rotating wheel 65 can be stably positioned when it stops rotating, so that the robot body 4 can be accurately stopped at the designated position. The bearing 7 reduces the frictional loss of the worm gear 62 and improves the transmission efficiency. The rubber strip enhances the friction and improves the stability and reliability of the movement.

[0023] Support wheels 8 are rotatably mounted on the bottom of the bracket 5, with two symmetrically arranged support wheels 8; limit wheels 9 are rotatably mounted on the mounting base 3, and two rollers 10 are rotatably mounted on both sides of the moving wheel 65 at the bottom of the bracket 5; the support wheels 8 improve the load-bearing capacity of the overall structure, making the robot's operation more stable; the limit wheels 9 effectively prevent the mounting base 3 from shifting during movement, ensuring the straightness of movement; the rollers 10 further enhance the smoothness of the movement of the mounting base 3 and reduce vibration during movement; the support wheels 8 contact the top of the crossbar 2 when the mounting base 3 moves. The rollers 10 and 65 provide support and share some of the weight of the mounting base 3 and the robot body 4. The limiting wheel 9 contacts the side of the crossbar 2, limiting the left and right sway of the mounting base 3 on the crossbar 2. The auxiliary moving wheel 65 makes the mounting base 3 move more smoothly on the crossbar 2. The support wheel 8 improves the load-bearing capacity of the overall structure and makes the robot run more stably. The limiting wheel 9 effectively prevents the mounting base 3 from deviating during movement and ensures the straightness of movement. The roller 10 further enhances the stability of the movement of the mounting base 3 and reduces the shaking during movement.

[0024] The bottom of the column 1 is fixedly connected to a fixed base 11, and a fixing bolt is installed inside the fixed base 11. The fixing bolt fixes the fixed base 11 to the ground or other installation foundation, thereby fixing the column 1 stably in the designated position and providing stable support for the entire gantry robot. The combination of the fixed base 11 and the fixing bolt enables the gantry robot to be firmly installed on the work site, ensuring the stability and safety of the robot during operation and reducing the risk of errors and failures caused by shaking or movement.

[0025] Working principle: The motor 61 at the top of the bracket 5 starts, and its output drives the worm gear 62 to rotate via a coupling. Since the worm wheel 64 is rotatably mounted on the fixed plate 63 fixed to the bracket 5 and meshes with the worm gear 62, the rotation of the worm gear 62 drives the worm wheel 64 to rotate. A movable wheel 65 is fixedly mounted at the bottom of the worm wheel 64, and the rotation of the worm wheel 64 further drives the movable wheel 65 to rotate. A rubber strip is installed on the outer ring of the movable wheel 65 to increase friction. The movable wheel 65 contacts the crossbar 2, and the friction causes the mounting base 3 and the robot body 4 fixed on the mounting base 3 to move on the crossbar 2. A bearing 7 fixed to the top of the bracket 5 is rotatably mounted on the outer side of the worm gear 62. The bearing 7 supports the worm gear 62, reduces frictional loss during rotation, and improves transmission efficiency. Simultaneously, the worm gear transmission has self-locking properties; when the motor 61 stops rotating, the movable wheel 65 also stops, ensuring that the robot body 4 is stably positioned in the designated location.

[0026] It should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rail-free truss robot, comprising a column (1) provided with three and a top fixedly connected with a crossbar (2), characterized in that, Also includes: A mounting base (3) is slidably mounted on the outside of the crossbar (2). The robot body (4) is fixedly mounted on the mounting base (3). A bracket (5) is fixedly mounted on the side of the mounting base (3). A transmission component (6) that drives the robot body (4) to move on the crossbar (2) is mounted on the bracket (5).

2. The rail-free truss robot of claim 1, wherein: The transmission assembly (6) includes a motor (61) fixedly mounted on the top of the bracket (5). The output end of the motor (61) is fixedly mounted with a worm gear (62) via a coupling. A fixing plate (63) is fixedly mounted on the bracket (5). A worm wheel (64) is rotatably mounted on the fixing plate (63). The worm wheel (64) meshes with the worm gear (62), and a movable wheel (65) is fixedly mounted on the bottom of the worm wheel (64).

3. The rail-free truss robot of claim 2, wherein: A bearing (7) is rotatably mounted on the outside of the worm (62), and the bearing (7) is fixedly mounted on the top of the bracket (5).

4. The rail-free truss robot of claim 2, wherein: The outer rim of the movable wheel (65) is fixedly fitted with a rubber strip to improve friction.

5. The rail-less truss robot of claim 1, wherein: The bottom of the bracket (5) is rotatably mounted with support wheels (8), and there are two support wheels (8) symmetrically arranged.

6. The rail-less truss robot of claim 2, wherein: The mounting base (3) is rotatably mounted with a limiting wheel (9), and the bottom of the bracket (5) is rotatably mounted with two rollers (10) on both sides of the movable wheel (65).

7. The rail-less truss robot of claim 1, wherein: The bottom of the column (1) is fixedly connected to a fixing seat (11), and a fixing bolt is installed inside the fixing seat (11).

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