Precise plane cutting mechanism with inertia compensation

Abstract

The utility model discloses a precision plane cutting mechanism with inertia offset, including the placement module for installing cutting head still include: mount, for through the flange and robot execution end connection, install two drive modules on the mount, two drive module is respectively with placement module transmission connection, one drive module drives placement module and moves along X axle direction, another drive module drives placement module and moves along Y axle direction. The utility model discloses through setting two drive modules and realizes the movement of placement module in X, Y axle direction respectively, and adopts two screws in each drive module in opposite screw direction, cooperates push rod subassembly and counterweight, when push rod subassembly drives cutting head to move, counterweight moves reversely, effectively offsets the inertia force of cutting head movement and produces, reduces the force that robot received, and then reduces the inertia impact when cutting tool high -speed operation, improves cutting stability.

Description

Technical Field

[0001] This utility model relates to the technical field of laser cutting, and in particular to a precision planar cutting mechanism with inertia cancellation. Background Technology

[0002] In the field of laser processing, laser cutting systems, as key equipment, are widely used for precision cutting of various materials. Currently available laser processing systems typically employ a combination of a machine tool or robot equipped with a laser system and a motion mechanism. The laser cutting tool is mounted on the motion mechanism, which in turn operates at the robot's end effector. However, this traditional approach has revealed numerous problems in actual operation.

[0003] During the cutting operation, the laser cutting tool rotates at high speed, generating significant inertial impact due to inertia. This inertial impact is directly transmitted to the robot's end effector, causing it to wobble. This severely affects the cutting quality, reducing the accuracy of the cutting trajectory, decreasing cutting efficiency, and making it difficult to guarantee the quality of the finished product. Utility Model Content

[0004] In view of the above-mentioned problems existing in existing laser cutting, the aim is to provide a precision planar cutting mechanism with inertia cancellation.

[0005] The specific technical solution is as follows: A precision planar cutting mechanism with inertia cancellation includes a placement module for mounting a cutting head, and further includes a mounting frame on which two drive modules are mounted. The two drive modules are respectively connected to the placement module in a transmission manner, wherein one drive module drives the placement module to move along the X-axis direction and the other drive module drives the placement module to move along the Y-axis direction. Each of the aforementioned driver modules includes: chassis; Two lead screws are arranged in parallel and rotatably mounted on the housing, and the thread directions of the two lead screws are opposite. A push rod assembly, which is slidably mounted on the housing and threaded onto the outside of one of the lead screws, and is connected to the placement module; A counterweight, which is slidably mounted on the housing and threaded onto the outside of another lead screw; A drive assembly is connected to the two lead screws for driving the two lead screws to rotate synchronously. When one of the lead screws drives the push rod assembly to slide along the X / Y axis, the other lead screw drives the counterweight to slide in the opposite direction.

[0006] As a further improvement and optimization of this solution, the push rod assembly includes a drive part and a push part. The drive part is threaded onto the outside of the lead screw, and the push part is slidably mounted on the housing along the axial direction of the lead screw. One end of the push part is connected to the drive part, and the other end is connected to the placement module.

[0007] As a further improvement and optimization of this solution, when one of the driving modules is used to drive the placement module to move along the X-axis direction, the other end of the pushing part of the driving module can be slidably connected to the placement module along the Y-axis direction, and the other end of the pushing part of the other driving module can be slidably connected to the placement module along the X-axis direction.

[0008] As a further improvement and optimization of this solution, the drive component includes a motor, which is mounted on the housing, and the motor is connected to the drive end of each lead screw through a transmission component.

[0009] As a further improvement and optimization of this solution, the transmission component is a belt drive.

[0010] As a further improvement and optimization of this solution, the motor and the two lead screws are arranged in a triangular distribution.

[0011] As a further improvement and optimization of this solution, an installation cavity is formed inside the housing, and a transmission cavity is formed on one side of the housing; Both lead screws are rotatably installed in the mounting cavity, the counterweight and the drive unit are installed in the mounting cavity, and the other end of the push unit slides out from the other side of the housing and is connected to the placement module; The motor is mounted on the outside of the housing, and the output shaft of the motor and the drive ends of the two lead screws extend into the transmission cavity.

[0012] As a further improvement and optimization of this solution, one side of the housing has a first maintenance cover for opening the transmission cavity, and the bottom and, or side, of the housing has a second maintenance cover for opening the mounting cavity.

[0013] As a further improvement and optimization of this solution, both the first maintenance cover and the second maintenance cover are detachably connected to the housing by screws.

[0014] As a further improvement and optimization of this solution, the outer side of the housing is recessed to form a mounting area, and the motor is mounted in the mounting area.

[0015] The positive effects of the above technical solution compared with the existing technology are: (1) This utility model sets up two drive modules to realize the movement of the placement module in the X and Y axis directions respectively. Each drive module uses two screws with opposite thread directions, which are combined with push rod assembly and counterweight. When the push rod assembly drives the cutting head to move, the counterweight moves in the opposite direction, effectively offsetting the inertial force generated by the movement of the cutting head, reducing the force on the robot, thereby reducing the inertial impact when the cutting tool is running at high speed and improving the cutting stability.

[0016] (2) The motor and two lead screws of this utility model are arranged in a triangular pattern. This layout is compact and can make full use of space, making the entire drive module smaller in size. At the same time, it ensures the rationality and stability of power transmission, which is conducive to improving the overall performance of the cutting mechanism.

[0017] (3) The present invention is provided with a first maintenance cover plate and a second maintenance cover plate, which facilitates the quick opening of the corresponding cavity for operation when it is necessary to repair, maintain or replace the transmission components in the transmission cavity or the lead screw, counterweight and other components in the installation cavity, thereby improving maintenance efficiency and reducing maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a precision planar cutting mechanism with inertia cancellation according to the present invention; Figure 2 This is a schematic diagram of the drive module of a precision planar cutting mechanism with inertia cancellation according to the present invention. Figure 3 This is a schematic diagram of the drive assembly of a precision planar cutting mechanism with inertia cancellation according to the present invention. Figure 4 This is a schematic diagram of the housing of a precision planar cutting mechanism with inertia cancellation according to the present invention. In the attached diagram: 1. Placement module; 2. Mounting bracket; 3. Drive module; 31. Housing; 32. Lead screw; 33. Counterweight; 34. Push rod assembly; 35. Drive assembly; 311. First maintenance cover; 312. Second maintenance cover; 341. Drive unit; 342. Push unit; 351. Motor; 352. Transmission component. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Figure 1 This is a schematic diagram of the structure of a precision planar cutting mechanism with inertia cancellation according to the present invention; Figure 2 This is a schematic diagram of the drive module of a precision planar cutting mechanism with inertia cancellation according to the present invention. Figure 3 This is a schematic diagram of the drive assembly of a precision planar cutting mechanism with inertia cancellation according to the present invention. Figure 4 This is a schematic diagram of the housing of a precision planar cutting mechanism with inertia cancellation according to the present invention. Figure 1-4The diagram illustrates a preferred embodiment of a precision planar cutting mechanism with inertia cancellation, comprising a placement module 1 for mounting a cutting head, and a mounting frame 2 for connecting to a robot end effector via a flange. Two drive modules 3 are mounted on the mounting frame 2, each drive module 3 being drively connected to the placement module 1. One drive module 3 drives the placement module 1 to move along the X-axis, and the other drive module 3 drives the placement module 1 to move along the Y-axis. Each drive module 3 includes a housing 31, two lead screws 32, a push rod assembly 34, a counterweight 33, and a drive assembly 35. The two lead screws 32... The two lead screws 32 are arranged in parallel and rotatably mounted on the housing 31, with their threads facing opposite directions. The push rod assembly 34 is slidably mounted on the housing 31 and threaded onto the outside of one of the lead screws 32. The push rod assembly 34 is connected to the placement module 1. The counterweight 33 is slidably mounted on the housing 31 and threaded onto the outside of the other lead screw 32. The drive assembly 35 is connected to the two lead screws 32 for driving them to rotate synchronously. When one lead screw 32 drives the push rod assembly 34 to slide along the X / Y axis, the other lead screw 32 drives the counterweight 33 to slide in the opposite direction.

[0023] In this application, two drive modules 3 are set up to realize the movement of the placement module 1 in the X and Y axis directions respectively. Each drive module 3 uses two lead screws 32 with opposite thread directions, which work in conjunction with the push rod assembly 34 and the counterweight 33. When the push rod assembly 34 drives the cutting head to move, the counterweight 33 moves in the opposite direction, which effectively counteracts the inertial force generated by the movement of the cutting head, reduces the force on the robot, and thus reduces the inertial impact when the cutting tool is running at high speed, and improves the cutting stability.

[0024] Furthermore, in a preferred embodiment, the push rod assembly 34 includes a drive part 341 and a push part 342. The drive part 341 is threaded onto the outside of the lead screw 32, and the push part 342 is slidably mounted on the housing 31 along the axial direction of the lead screw 32. One end of the push part 342 is connected to the drive part 341, and the other end is connected to the placement module 1. The push rod assembly 34 adopts the structure of the drive part 341 and the push part 342. The drive part 341 is threadedly engaged with the lead screw 32 to achieve power transmission, and the slidable installation of the push part 342 ensures that the entire push rod assembly 34 moves stably along the axial direction of the lead screw 32.

[0025] Furthermore, as a preferred embodiment, when one drive module 3 is used to drive the placement module 1 to move along the X-axis, the other end of the pushing part 342 of the drive module 3 can be slidably connected to the placement module 1 along the Y-axis, and the other end of the pushing part 342 of the other drive module 3 can be slidably connected to the placement module 1 along the X-axis. This connection method allows the two drive modules 3 to coordinate flexibly when driving the placement module 1 to move, ensuring smooth movement of the placement module 1 in the X and Y axis directions, further improving the accuracy of the cutting trajectory and the stability of the cutting process, and realizing more complex cutting patterns.

[0026] Furthermore, in a preferred embodiment, the drive assembly 35 includes a motor 351, which is mounted on the housing 31. The motor 351 is connected to the drive end of each lead screw 32 via a transmission component 352. Using the motor 351 as the drive source and transmitting power to the two lead screws 32 through the transmission component 352 achieves synchronous rotation of the two lead screws 32. This design is simple and reliable, with high power transmission efficiency, providing stable power for the movement of the cutting head and ensuring the continuity and stability of the cutting process. Furthermore, as a preferred embodiment, the transmission component 352 is a belt drive. Belt drives have advantages such as smooth transmission, shock absorption, simple structure, and low cost. They can effectively reduce vibration and noise during transmission, making the rotation of the two lead screws 32 more stable, thereby improving the smoothness of the cutting head movement and enhancing the cutting quality.

[0027] Even better, each belt drive has a pressure pulley, which is rotatably mounted on the housing 31 and presses the transmission belt located between the driving pulley and the driven pulley inward. The pressure pulley tensions the transmission belt to prevent slippage between the transmission belt and the driving / driven pulley, thereby improving transmission stability.

[0028] Furthermore, as a preferred embodiment, the motor 351 and the two lead screws 32 are arranged in a triangular configuration. This triangular configuration of the motor 351 and the two lead screws 32 results in a compact structure, making full use of space and reducing the overall size of the drive module 3. At the same time, it ensures the rationality and stability of power transmission, which is beneficial to improving the overall performance of the cutting mechanism.

[0029] Furthermore, in a preferred embodiment, a mounting cavity is formed within the housing 31, and a transmission cavity is formed on one side of the housing 31. Both lead screws 32 are rotatably mounted within the mounting cavity, as are the counterweight 33 and the drive unit 341. The other end of the push unit 342 slides out from the other side of the housing 31 and connects to the placement module 1. The motor 351 is mounted on the outside of the housing 31, and its output shaft and the drive ends of the two lead screws 32 extend into the transmission cavity. By mounting the lead screws 32, counterweight 33, and drive unit 341 within the mounting cavity, and the motor 351 on the outside of the housing 31, power transmission is achieved through the transmission cavity. This structural design is reasonable, provides good protection for internal components, and improves the reliability and service life of the cutting mechanism.

[0030] Furthermore, as a preferred embodiment, one side of the housing 31 has a first maintenance cover 311 plate for opening the transmission cavity, and the bottom and, or the side of the housing 31, has a second maintenance cover 312 plate for opening the mounting cavity. Providing the first maintenance cover 311 plate and the second maintenance cover 312 plate facilitates quick opening of the corresponding cavity for operation when it is necessary to repair, maintain, or replace the transmission component 352 in the transmission cavity or the lead screw 32, counterweight 33, and other components in the mounting cavity, thereby improving maintenance efficiency and reducing maintenance costs.

[0031] Furthermore, as a preferred embodiment, both the first maintenance cover 311 and the second maintenance cover 312 are detachably connected to the housing 31 by screws. The screw connection method ensures a secure and reliable connection between the maintenance cover and the housing 31, while also allowing for simple and convenient disassembly, enabling quick assembly and disassembly of the maintenance cover and further improving maintenance convenience.

[0032] Furthermore, as a preferred embodiment, the outer side of the housing 31 is recessed to form a mounting area, and the motor 351 is mounted in the mounting area. This recessed mounting area on the outer side of the housing 31 for mounting the motor 351 further optimizes the overall structural layout, making the motor 351 more securely mounted, while also making the entire cutting mechanism appear more regular and reducing space occupation.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision planar cutting mechanism with inertia cancellation, comprising a placement module for mounting a cutting head, characterized in that, Also includes: The mounting frame has two drive modules mounted on it. The two drive modules are respectively connected to the placement module in a transmission manner. One drive module drives the placement module to move along the X-axis direction, and the other drive module drives the placement module to move along the Y-axis direction. Each of the aforementioned driver modules includes: chassis; Two lead screws are arranged in parallel and rotatably mounted on the housing, and the thread directions of the two lead screws are opposite. A push rod assembly, which is slidably mounted on the housing and threaded onto the outside of one of the lead screws, and is connected to the placement module; A counterweight, which is slidably mounted on the housing and threaded onto the outside of another lead screw; A drive assembly is connected to the two lead screws for driving the two lead screws to rotate synchronously. When one of the lead screws drives the push rod assembly to slide along the X / Y axis, the other lead screw drives the counterweight to slide in the opposite direction.

2. The precision planar cutting mechanism with inertia cancellation according to claim 1, characterized in that, The push rod assembly includes a drive unit and a push unit. The drive unit is threaded onto the outside of the lead screw. The push unit is slidably mounted on the housing along the axial direction of the lead screw. One end of the push unit is connected to the drive unit, and the other end is connected to the placement module.

3. The precision planar cutting mechanism with inertia cancellation according to claim 2, characterized in that, When one of the drive modules is used to drive the placement module to move along the X-axis, the other end of the push part of the drive module can be slidably connected to the placement module along the Y-axis, and the other end of the push part of the other drive module can be slidably connected to the placement module along the X-axis.

4. The precision planar cutting mechanism with inertia cancellation according to claim 2, characterized in that, The drive assembly includes a motor mounted on the housing, and the motor is connected to the drive end of each lead screw via a transmission component.

5. The precision planar cutting mechanism with inertia cancellation according to claim 4, characterized in that, The transmission component is a belt drive.

6. The precision planar cutting mechanism with inertia cancellation according to claim 4, characterized in that, The motor and the two lead screws are arranged in a triangular configuration.

7. The precision planar cutting mechanism with inertia cancellation according to claim 4, characterized in that, An installation cavity is formed inside the housing, and a transmission cavity is formed on one side of the housing; Both lead screws are rotatably installed in the mounting cavity, the counterweight and the drive unit are installed in the mounting cavity, and the other end of the push unit slides out from the other side of the housing and is connected to the placement module; The motor is mounted on the outside of the housing, and the output shaft of the motor and the drive ends of the two lead screws extend into the transmission cavity.

8. The precision planar cutting mechanism with inertia cancellation according to claim 7, characterized in that, The housing has a first maintenance cover on one side for opening the transmission cavity, and a second maintenance cover on the bottom and, or side, of the housing for opening the mounting cavity.

9. The precision planar cutting mechanism with inertia cancellation according to claim 8, characterized in that, Both the first maintenance cover and the second maintenance cover are detachably connected to the housing by screws.

10. The precision planar cutting mechanism with inertia cancellation according to claim 7, characterized in that, The outer side of the housing is recessed to form a mounting area, and the motor is mounted in the mounting area.

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