Workbench where the robot arm is installed

Abstract

Conventional robot arm workbenches lacked the ability to rotate the workpiece, resulting in reduced efficiency during full-circumference welding and welding of complexly shaped objects. Furthermore, a lack of versatile fixing methods made it difficult to flexibly accommodate specific shapes and dimensions. Additionally, the unstable fixing position during welding raised concerns about negative impacts on work accuracy and quality. [Solution] The present invention employs a configuration in which a welding turntable is installed on the top plate of a workbench on which a robot arm is mounted. The welding turntable improves the efficiency and accuracy of welding work by providing multiple holes for rotatably supporting the workpiece and fixing it using jigs. Furthermore, since the turntable can be made from existing commercially available products and can be easily installed by fixing methods such as bolts and clamps, it can be applied to a wide range of welding operations.

Description

Technical Field

[0001] The present invention relates to a workbench on which a robot arm is installed, and particularly to the shape and mounting structure of the workbench that enables efficient arm movement in various operations.

Background Art

[0002] Conventional robot arms were installed on a workbench and operated within a specific operating range. However, when the shape of the workbench or the mounting structure of the arm was inappropriate, the movable range of the arm was restricted, and there was a problem that an area where the arm could not reach occurred. As a result, work efficiency decreased, and there was a possibility of affecting the accuracy and quality of the work.

[0003] Also, when a user directly performs direct teaching to operate a robot arm by a collaborative robot, there are cases where the shape of the workbench and the mounting position of the arm make it difficult for the user to reach with their hand, and improvement in operability and safety has been demanded.

Prior Art Documents

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

[0005] An object of the present invention is to improve the efficiency of various operations and improve the operability of the user by optimizing the shape and mounting structure of the workbench on which the robot arm is installed.

Problems to be Solved by the Invention

[0006] The problem that this invention aims to solve is to clarify that the robot arm can access the entire area of ​​the workbench and that robotic work is always possible as long as the size of the workpiece does not extend beyond the workbench.

[0007] Another challenge is to provide a mounting structure that improves operability and safety by ensuring that users can reach the arm without obstruction when performing direct teaching. [Means for solving the problem]

[0008] The workbench on which the robot arm according to the present invention is installed has a top surface that is made up of a straight line, the left and right sides that are made up of parallel vertical lines, and the bottom surface that is made up of a central horizontal line portion and two symmetrical inclined line portions that are continuous with both ends of the horizontal line portion, and the top surface is made up of a shape that is contained within the radius of the operating range of the robot arm and does not include any area that the robot arm cannot reach.

[0009] Furthermore, the robot arm is installed on the top edge of the workbench and is movable across the entire working area on the top plate. [Effects of the Invention]

[0010] The present invention provides the following effects:

[0011] (1) Since the entire surface of the workbench is within the range of motion of the robot arm, it is clearly evident that the robot can perform the work as long as the workpiece does not extend beyond the workbench. This improves the efficiency of various tasks and prevents inaccurate work results.

[0012] (2) The robot arm mounting structure 004 is designed with user operability in mind, making it easier for the user's hand to reach the arm when performing direct teaching, thus improving safety and operability. [Brief explanation of the drawing]

[0013] [Figure 1] This is a perspective view of a workbench according to an embodiment of the present invention. [Figure 2] This is a plan view of a workbench according to an embodiment of the present invention, showing the installation position of the robot arm and the shape of the tabletop. [Figure 3] This is a plan view of a workbench according to an embodiment of the present invention, showing the reachable area of ​​the robot arm. [Figure 4] This figure shows an example in which the workbench of the present invention is used in a collaborative welding robot. [Figure 5] This is a perspective view showing an embodiment in which a welding turntable is installed on the top plate of a workbench. [Figure 6] This is a plan view showing an example in which a welding turntable is installed on the top plate of a workbench. [Figure 7] This is a perspective view showing an embodiment in which a tilted welding turntable is installed on the top of a workbench. [Modes for carrying out the invention]

[0014] Embodiments of the present invention will now be described in detail with reference to the drawings. The workbench 001 shown in Figure 1 is equipped with a top plate 030 on which a robot arm 002, operated by a robot, is mounted.

[0015] As shown in Figure 2, the top plate 030 has a top edge 031 made up of straight lines, and the left and right side edges 032 are made up of parallel vertical lines. The bottom edge 033 is made up of a central horizontal straight line portion 034 and two symmetrical inclined straight line portions 035 that are continuous at both ends of it. This shape allows the robot arm 002 to reach all areas on the top plate 030, improving work efficiency.

[0016] Furthermore, the robotic arm 002 is installed on the upper side 031 of the workbench 001 via the mounting structure 004. This mounting structure 004 stably fixes the robotic arm 002 and enables it to move over the entire working range on the top plate 030. The mounting structure 004 enables firm fixation of the robotic arm 002, for example, by using bolts and nuts or a clamp mechanism, thereby enhancing the safety and efficiency of the work.

[0017] As shown in FIG. 3, the top plate 030 is designed based on the operating radius of the robotic arm 002 and has a shape along the region 005 indicated by oblique lines in the figure. Also, the region 006 indicated by the dashed line in FIG. 3 is an area that the robotic arm 002 cannot reach and is an area excluded from the top plate in the present invention. Since the top plate 030 has such a shape, it can be visually confirmed that the work object placed on the workbench 001 can be worked on in all ranges by the robot using the robotic arm 002.

[0018] FIG. 4 shows an embodiment in which the workbench 001 is used for a collaborative robot for welding, which is one of the applications of the present invention. The workbench of the present invention can be used for various applications as long as it uses a robotic arm that works on the table, and can be applied to various working robots, such as welding, assembly, painting, polishing, and the like.

[0019] As another embodiment of the present invention, as shown in FIGS. 5 and 6, a welding turntable 040 can be installed on the top plate of the workbench. The welding turntable 040 has a structure that rotatably supports the work object, enabling full - circumference welding of the object and welding work for complex shapes.

[0020] This welding turntable 040 can be adapted from existing commercially available products. By installing it on the top plate of the workbench, the working range of the robotic arm can be expanded. As a fixing method between the turntable and the top plate of the workbench, fixing by bolts, a clamp mechanism, or a detachable magnetic fixture is preferably used. Note that the shape of the welding turntable 040 is not limited to the circular shape shown in FIGS. 5 and 6.

[0021] Furthermore, the welding turntable 040 is provided with multiple jig mounting holes 041 for fixing the workpiece to be welded using jigs, allowing for flexible adaptation to the shape and dimensions of the workpiece. Preferably, these jig mounting holes 041 are arranged evenly or based on a specific pattern.

[0022] Furthermore, when using the welding turntable 040, the range of motion of the robot arm extends to the entire top plate (including the turntable itself), enabling accurate and efficient welding work as long as the object to be welded fits within the top plate.

[0023] Furthermore, as shown in Figure 7, the welding turntable 040 may have a structure with an obliquely cut incline. This structure enables even more efficient welding work depending on the shape of the specific object to be welded and the work requirements.

[0024] (supplement) The functions and configurations described in each embodiment of the present invention are not limited to being implemented individually, and the described elements and functions can be combined as appropriate within the scope of technical compatibility. Therefore, the scope of the present invention accommodates a wide variety of modifications, including these combinations. [Industrial applicability]

[0025] This invention is widely applicable to various tasks in the manufacturing industry. By using the workbench of this invention, the efficiency and quality of work can be improved. [Explanation of Symbols]

[0026] 001 Workbench 002 Robot Arm 030 Top plate 031 Top 032 Left and right sides 033 Bottom edge 034 Central horizontal line section 035 Slanted straight section 004 Mounting structure 005 Area reachable by the robot arm 006 Areas that the robot arm cannot reach 040 Welding Rotary Table 041 Jig mounting hole

Claims

1. A workbench on which a robot arm is installed, The tabletop of the aforementioned workbench is The top edge is made up of straight lines, The left and right sides are composed of parallel vertical lines, The bottom edge is composed of a central horizontal line portion and two symmetrical inclined line portions that are continuous with both ends of the horizontal line portion. A workbench having a shape such that the top plate is contained within the radius of the robot arm's operating range and does not include areas that the robot arm cannot reach.

2. A workbench according to claim 1, The robot arm is installed on the upper edge of the workbench, A workbench on which the robot arm can move across the entire working area on the top plate.

3. A workbench according to claim 1 or 2, A workbench characterized in that a welding turntable is installed on the top plate of the workbench, and the welding turntable rotatably supports the object to be welded.

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