Device for reducing robot shaking during cutting

Abstract

The utility model discloses a device for reducing robot shaking during cutting, which relates to the technical field of cutting robots, and comprises a robot arm, a connecting seat and a cutting blade, a fixing mechanism is arranged at the bottom of the connecting seat, the fixing mechanism comprises a fixing shell, a connecting shell and two groups of springs, and two sets of connecting rods are arranged in the fixing shell in a penetrating mode, connecting caps are fixedly installed at the tops of the two sets of connecting rods, and fixing caps are fixedly installed at the bottoms of the two sets of connecting rods. By arranging the fixing mechanism which is an auxiliary tool for cutting the blade and pressing and fixing materials, the problem that the materials shake in the cutting process of the robot arm can be solved, it is ensured that the materials are kept flat in the cutting process, the situation that the distance between a laser beam and a workpiece is not uniform due to bending or warping of the materials is avoided, and the cutting quality is improved. Therefore, the cutting quality and the cutting precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting robots, in particular to a device for reducing the shaking of the robot during cutting. Background Art

[0002] The robot cutting machine is an advanced cutting equipment that integrates automated robot motion technology. It is mainly composed of a robot, a cutting head, a cutting control system, etc., and can realize automatic control cutting of objects. The robot cutting machine realizes the cutting of objects through automatic control, in which the robot is the core component, responsible for motion control, positioning, operation and other tasks.

[0003] However, in the prior art, when a robot cutting machine cuts materials, the cutting blade will vibrate during rotation, causing the material to vibrate, affecting the cutting accuracy and quality and limiting the increase in cutting speed. To address the above problem, a device is proposed to reduce robot vibration during cutting. Utility Model Content

[0004] The utility model aims to provide a device for reducing the shaking of a robot during cutting.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for reducing the shaking of a robot during cutting, comprising a robot arm, a connecting seat and a cutting blade, a fixing mechanism is arranged at the bottom of the connecting seat, the fixing mechanism comprises a fixing shell, a connecting shell and two groups of springs, two groups of connecting rods are arranged throughout the interior of the fixing shell, connecting caps are fixedly installed on the tops of the two groups of connecting rods, fixing caps are fixedly installed on the bottoms of the two groups of connecting rods, the two groups of springs are respectively arranged on the outer walls of the two groups of connecting rods, two groups of rollers are fixedly installed on the bottom of the connecting shell, when cutting the material, the robot arm and the connecting seat move so that the cutting blade is in the cutting position, and then the robot arm drives the connecting seat and the cutting blade to move downward, at the same time, when the connecting shell moves downward, the two groups of rollers contact the top of the material, and the connecting seat drives the fixed shell to move downward, so that the distance between the fixed shell and the connecting shell is reduced, Thereby, the two groups of springs are squeezed, and the length of the tops of the two groups of connecting rods extending out of the fixed shell gradually becomes longer, and the distance between the connecting cap and the fixed shell gradually becomes longer. The compression deformation of the spring provides pressure to both ends, so that the connecting shell and the roller slightly squeeze the material, making the material flat and the cutting position completely exposed at the bottom of the cutting blade. The motor is started to drive the cutting blade to rotate and cut the material. During the cutting process, the robot arm drives the connecting seat, the fixed shell, the two groups of connecting rods and the connecting shell to move in the horizontal direction, so that the roller slides on the top of the material and cooperates with the cutting blade to cut the material. By setting a fixing mechanism as an auxiliary tooling for the cutting blade, the material can be flattened and fixed to reduce the shaking of the fixed shell and the cutting blade, which can reduce the problem of material shaking of the robot arm during the cutting process, ensure that the material remains flat during the cutting process, and avoid uneven distance between the laser beam and the workpiece due to bending or warping of the material, thereby improving the cutting quality and cutting accuracy.

[0006] Preferably, the bottom of the robot arm is fixedly connected to the top of the fixed shell, and the top of the connecting seat is fixedly connected to the bottom of the fixed shell. When cutting the material, the robot arm and the connecting seat move so that the cutting blade is in the cutting position, and then the robot arm drives the connecting seat and the cutting blade to move downward.

[0007] Preferably, one end of the two groups of connecting rods are fixedly connected to the inside of the connecting shell, and the tops of the two groups of fixing caps are fixedly connected to the bottom of the connecting shell. When the connecting shell moves downward, the connecting seat drives the fixing shell to move downward, so that the distance between the fixing shell and the connecting shell is reduced.

[0008] Preferably, one end of the two groups of springs are fixedly connected to the bottom of the fixed shell, and the other end of the two groups of springs are fixedly connected to the top of the connecting shell. The distance between the connecting cap and the fixed shell gradually increases, and the compression deformation of the spring provides pressure to both ends, so that the connecting shell and the roller slightly squeeze the material.

[0009] Preferably, a mounting mechanism is provided on the top of the cutting blade, and the mounting mechanism includes a connecting tube, multiple groups of limit strips, a connecting sleeve, a connecting ring and a motor. One side of the motor is fixedly connected to one side of the connecting seat, and the output end of the motor is transmission-connected to one end of the connecting sleeve. The top end of the connecting tube is inserted into the interior of the connecting sleeve so that the limit strip is stuck in the interior of the connecting sleeve, and then the connecting ring is rotated to connect the connecting sleeve and the connecting tube together, thereby realizing fixed installation of the cutting blade. The motor is started to drive the connecting sleeve and the cutting blade to rotate to cut the material. By setting up the mounting mechanism, it is convenient to install and disassemble the cutting blade, and it is possible to quickly replace different types of cutting heads or cutting heads with severe wear, saving maintenance time, avoiding the severe wear of the cutting head from being unstable and causing vibration during use, improving production efficiency, and maintaining the cutting quality and stability of the cutting head.

[0010] Preferably, the bottom of the connecting tube is fixedly connected to the top of the cutting blade, and multiple groups of limit strips are fixedly installed on the outer wall of the connecting tube. The top of the connecting tube and the inner wall of the connecting sleeve are mutually clamped, and the connecting sleeve is fixedly installed inside the connecting seat. By setting multiple groups of limit strips, the positions of the cutting blade and the connecting tube inside the connecting sleeve can be accurately limited, ensuring that the cutting blade is installed in the center of the connecting sleeve for cutting, fixing the position of the cutting blade, avoiding position deviation or shaking during the cutting process, maintaining the stability of the cutting head, and improving the cutting quality and accuracy.

[0011] Preferably, the outer wall of the connecting pipe is rotatably connected to the inner wall of the connecting ring, and the inner wall of the connecting ring is threadedly connected to the outer wall of the connecting sleeve, so as to facilitate the disassembly and installation of the connecting pipe and the cutting blade.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, a fixing mechanism is provided as an auxiliary tooling for the cutting blade. By flattening the fixed material, the shaking of the fixing shell and the cutting blade is reduced, and the material shaking problem of the robot arm during the cutting process can be reduced, ensuring that the material remains flat during the cutting process, and avoiding uneven distance between the laser beam and the workpiece due to bending or warping of the material, thereby improving the cutting quality and cutting accuracy.

[0014] 2. In the utility model, by setting multiple sets of limit strips, the positions of the cutting blade and the connecting tube inside the connecting sleeve can be accurately limited, ensuring that the cutting blade is installed in the center of the connecting sleeve for cutting, fixing the position of the cutting blade, avoiding position deviation or shaking during the cutting process, maintaining the stability of the cutting head, and improving the cutting quality and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a first three-dimensional structural schematic diagram of a device for reducing robot vibration during cutting proposed by the utility model;

[0016] Figure 2 A second three-dimensional structural schematic diagram of a device for reducing robot vibration during cutting proposed by the utility model;

[0017] Figure 3 This is a front structural schematic diagram of a fixing mechanism of a device for reducing robot vibration during cutting proposed by the utility model;

[0018] Figure 4 The utility model provides a three-dimensional structural schematic diagram of a mounting mechanism of a device for reducing robot vibration during cutting.

[0019] Legend: 1. Robot arm; 2. Connecting seat; 3. Cutting blade; 4. Fixing mechanism; 41. Fixing shell; 42. Connecting shell; 43. Connecting rod; 44. Connecting cap; 45. Fixing cap; 46. Spring; 47. Roller; 5. Mounting mechanism; 51. Connecting pipe; 52. Limiting strip; 53. Connecting sleeve; 54. Connecting ring; 55. Motor. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] like Figure 1-3As shown, the utility model provides a device for reducing robot vibration during cutting, including a robot arm 1, a connecting seat 2 and a cutting blade 3. A fixing mechanism 4 is arranged at the bottom of the connecting seat 2. The fixing mechanism 4 includes a fixing shell 41, a connecting shell 42 and two groups of springs 46. Two groups of connecting rods 43 are arranged throughout the interior of the fixing shell 41. Connecting caps 44 are fixedly installed on the tops of the two groups of connecting rods 43. Fixing caps 45 are fixedly installed on the bottoms of the two groups of connecting rods 43. Two groups of springs 46 are respectively arranged on the outer walls of the two groups of connecting rods 43. Two groups of rollers 47 are fixedly installed on the bottom of the connecting shell 42. When cutting the material, the robot arm 1 and the connecting seat 2 move so that the cutting blade 3 is in the cutting position, and then the robot arm 1 drives the connecting seat 2 and the cutting blade 3 to move downward. At the same time, when the connecting shell 42 moves downward, the two groups of rollers 47 contact the top of the material, and the connecting seat 2 drives the fixing shell 41 to move downward, so that the distance between the fixing shell 41 and the connecting shell 42 is reduced, thereby 46 is extruded, the length of the top of the two groups of connecting rods 43 extending out of the fixed shell 41 gradually becomes longer, the distance between the connecting cap 44 and the fixed shell 41 gradually becomes longer, and the compression deformation of the spring 46 provides pressure to both ends, so that the connecting shell 42 and the roller 47 slightly squeeze the material, so that the material is flat and the cutting position is completely exposed at the bottom of the cutting blade 3, and the starting motor 55 drives the cutting blade 3 to rotate to cut the material. During the cutting process, the robot arm 1 drives the connecting seat 2, the fixed shell 41, the two groups of connecting rods 43 and the connecting shell 42 to move in the horizontal direction, so that the roller 47 slides on the top of the material and cooperates with the cutting blade 3 to cut the material. By setting the fixing mechanism 4, which is an auxiliary tooling for the cutting blade 3, the material is flattened and fixed, and the shaking of the fixed shell 41 and the cutting blade 3 is reduced. The problem of material shaking during the cutting process of the robot arm 1 can be reduced, ensuring that the material remains flat during the cutting process, and avoiding uneven distance between the laser beam and the workpiece due to bending or warping of the material, thereby improving the cutting quality and cutting accuracy.

[0023] like Figure 1-3 As shown, the bottom of the robot arm 1 is fixedly connected to the top of the fixed shell 41, and the top of the connecting seat 2 is fixedly connected to the bottom of the fixed shell 41. When cutting the material, the robot arm 1 and the connecting seat 2 move so that the cutting blade 3 is in the cutting position, and then the robot arm 1 drives the connecting seat 2 and the cutting blade 3 to move downward.

[0024] like Figure 1-3 As shown, one end of the two groups of connecting rods 43 are fixedly connected to the inside of the connecting shell 42, and the tops of the two groups of fixing caps 45 are fixedly connected to the bottom of the connecting shell 42. When the connecting shell 42 moves downward, the connecting seat 2 drives the fixing shell 41 to move downward, so that the distance between the fixing shell 41 and the connecting shell 42 is reduced.

[0025] like Figure 1-3 As shown, one end of the two sets of springs 46 are fixedly connected to the bottom of the fixed shell 41, and the other ends of the two sets of springs 46 are fixedly connected to the top of the connecting shell 42. The distance between the connecting cap 44 and the fixed shell 41 gradually increases, and the compression deformation of the spring 46 provides pressure to both ends, so that the connecting shell 42 and the roller 47 slightly squeeze the material.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, a mounting mechanism 5 is provided on the top of the cutting blade 3, and the mounting mechanism 5 includes a connecting tube 51, multiple groups of limit strips 52, a connecting sleeve 53, a connecting ring 54 and a motor 55. One side of the motor 55 is fixedly connected to one side of the connecting seat 2, and the output end of the motor 55 is transmission-connected to one end of the connecting sleeve 53. The top end of the connecting tube 51 is inserted into the interior of the connecting sleeve 53 so that the limit strip 52 is stuck in the interior of the connecting sleeve 53, and then the connecting ring 54 is rotated so that the connecting sleeve 53 is connected to the connecting tube 51 together, thereby realizing the fixed installation of the cutting blade 3. The motor 55 is started to drive the connecting sleeve 53 and the cutting blade 3 to rotate, and the material is cut. By setting the mounting mechanism 5, it is convenient to install and disassemble the cutting blade 3, and it is possible to quickly replace different types of cutting heads or cutting heads with severe wear, saving maintenance time, avoiding the vibration caused by the instability of the cutting head with severe wear during use, improving production efficiency, and maintaining the cutting quality and stability of the cutting head.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, one end of the connecting tube 51 is fixedly connected to one end of the cutting blade 3, and multiple sets of limit strips 52 are fixedly installed on the outer wall of the connecting tube 51. The top of the connecting tube 51 and the inner wall of the connecting sleeve 53 are mutually clamped, and the connecting sleeve 53 is fixedly installed inside the connecting seat 2. By setting multiple sets of limit strips 52, the positions of the cutting blade 3 and the connecting tube 51 inside the connecting sleeve 53 can be accurately limited, ensuring that the cutting blade 3 is installed at the center of the connecting sleeve 53 for cutting, fixing the position of the cutting blade 3, avoiding position deviation or shaking during the cutting process, maintaining the stability of the cutting head, and improving the cutting quality and accuracy.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, the outer wall of the connecting tube 51 is rotatably connected to the inner wall of the connecting ring 54, and the inner wall of the connecting ring 54 is threadedly connected to the outer wall of the connecting sleeve 53, so as to facilitate the disassembly and installation of the connecting tube 51 and the cutting blade 3.

[0029] The method of use and working principle of the device are as follows: insert the top end of the connecting tube 51 into the interior of the connecting sleeve 53 so that the limiting strip 52 is stuck in the interior of the connecting sleeve 53, and then rotate the connecting ring 54 so that the connecting sleeve 53 is connected to the connecting tube 51, thereby realizing the fixed installation of the cutting blade 3. When cutting the material, the robot arm 1 and the connecting seat 2 move so that the cutting blade 3 is in the cutting position, and then the robot arm 1 drives the connecting seat 2 and the cutting blade 3 to move downward. At the same time, when the connecting shell 42 moves downward, the two sets of rollers 47 contact the top of the material, and the connecting seat 2 drives the fixed shell 41 to move downward, so that the fixed shell 41 and the connecting shell 42 are connected. The distance between them decreases, thereby squeezing the two groups of springs 46, and the length of the tops of the two groups of connecting rods 43 extending out of the fixed shell 41 gradually becomes longer, and the distance between the connecting cap 44 and the fixed shell 41 gradually becomes longer. The compression deformation of the spring 46 provides pressure to both ends, so that the connecting shell 42 and the roller 47 slightly squeeze the material, making the material flat and the cutting position completely exposed at the bottom of the cutting blade 3. The starting motor 55 drives the cutting blade 3 to rotate and cut the material. During the cutting process, the robot arm 1 drives the connecting seat 2, the fixed shell 41, the two groups of connecting rods 43 and the connecting shell 42 to move in the horizontal direction, so that the roller 47 slides on the top of the material and cooperates with the cutting blade 3 to cut the material.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A device for reducing robot vibration during cutting, comprising a robot arm (1), a connecting seat (2) and a cutting blade (3), characterized in that: A fixing mechanism (4) is arranged at the bottom of the connecting seat (2), and the fixing mechanism (4) comprises a fixing shell (41), a connecting shell (42) and two groups of springs (46). Two groups of connecting rods (43) are arranged through the interior of the fixing shell (41), connecting caps (44) are fixedly mounted on the tops of the two groups of connecting rods (43), fixing caps (45) are fixedly mounted on the bottoms of the two groups of connecting rods (43), the two groups of springs (46) are respectively arranged on the outer walls of the two groups of connecting rods (43), and two groups of rollers (47) are fixedly mounted on the bottom of the connecting shell (42).

2. The device for reducing robot vibration during cutting according to claim 1, characterized in that: The bottom of the robot arm (1) is fixedly connected to the top of the fixed shell (41), and the top of the connecting seat (2) is fixedly connected to the bottom of the fixed shell (41).

3. The device for reducing robot vibration during cutting according to claim 1, characterized in that: One end of the two groups of connecting rods (43) is fixedly connected to the inside of the connecting shell (42), and the top of the two groups of fixing caps (45) is fixedly connected to the bottom of the connecting shell (42).

4. The device for reducing robot vibration during cutting according to claim 1, characterized in that: One end of the two groups of springs (46) is fixedly connected to the bottom of the fixed shell (41), and the other end of the two groups of springs (46) is fixedly connected to the top of the connecting shell (42).

5. The device for reducing robot vibration during cutting according to claim 1, characterized in that: A mounting mechanism (5) is provided on the top of the cutting blade (3), the mounting mechanism (5) comprising a connecting tube (51), a plurality of limit strips (52), a connecting sleeve (53), a connecting ring (54) and a motor (55), one side of the motor (55) being fixedly connected to one side of the connecting seat (2), and an output end of the motor (55) being drivingly connected to one end of the connecting sleeve (53).

6. The device for reducing robot vibration during cutting according to claim 5, characterized in that: One end of the connecting tube (51) is fixedly connected to one end of the cutting blade (3), a plurality of sets of limiting strips (52) are fixedly mounted on the outer wall of the connecting tube (51), the top of the connecting tube (51) and the inner wall of the connecting sleeve (53) are mutually clamped, and the connecting sleeve (53) is fixedly mounted inside the connecting seat (2).

7. The device for reducing robot vibration during cutting according to claim 6, characterized in that: The outer wall of the connecting pipe (51) is rotatably connected to the inner wall of the connecting ring (54), and the inner wall of the connecting ring (54) is threadedly connected to the outer wall of the connecting sleeve (53).

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