Workbench where the robot arm is installed

The optimized workbench shape and mounting structure enable the robot arm to access the entire work area, improving efficiency and safety by securing the arm for unhindered movement and user access.

JP2026049234APending Publication Date: 2026-03-18ALFATKG
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2026-03-18

AI Technical Summary

Technical Problem

Conventional robot arms on workbenches face restricted motion ranges due to inappropriate workbench shapes and mounting structures, leading to decreased efficiency, accuracy, and safety issues during direct teaching.

Method used

The workbench design features a straight top surface, parallel vertical sides, and symmetrical inclined bottom edges, allowing the robot arm to access the entire surface, with a mounting structure that secures the arm for safe and efficient movement across the work area.

Benefits of technology

Ensures the robot arm can reach all areas of the workbench, enhancing operational efficiency and user safety by preventing obstructions during direct teaching.

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Abstract

The objective of this invention is to solve the problem that conventional robotic workbenches are limited to specific applications and restrict the range of motion of the robotic arm, making it difficult to perform work efficiently across the entire workbench area. Furthermore, the invention aims to provide a workbench that can flexibly adapt to confined spaces and areas with complex shapes through direct teaching, thereby improving work efficiency and safety. [Solution] This invention solves the problem by optimizing the shape of the top plate to which the robot arm is attached. The top plate consists of a straight top edge, parallel vertical side edges, a central horizontal straight section, and symmetrical inclined sections continuous with both ends of that section. This shape allows the robot arm to operate across the entire surface of the top plate, enabling efficient work regardless of the size or shape of the workpiece. Furthermore, it facilitates direct operation, improving both operability and safety.
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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 range of motion. However, when the shape of the workbench or the mounting structure of the arm was inappropriate, the range of motion of the arm was restricted, and there was a problem of areas that the arm could not reach. As a result, work efficiency decreased, and it was possible to affect the accuracy and quality of the work.

[0003] Also, when a user directly performs teaching (direct teaching) to operate a robot arm by a collaborative robot, the shape of the workbench and the mounting position of the arm may obstruct the reach of the user's 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 a user by optimizing the shape and mounting structure of a workbench on which a 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. [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 robot arm 002 is mounted on the upper edge 031 of the workbench 001 via a mounting structure 004. This mounting structure 004 securely fixes the robot arm 002 and allows it to move across the entire working area on the top plate 030. The mounting structure 004 enables the robot arm 002 to be firmly fixed, for example, by using bolts and nuts or a clamping mechanism, thereby improving 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 robot arm 002 and has a shape along the region 005 shown by the slashes in the figure. Also, the region 006 shown by the dashed line in FIG. 3 is a region that the robot arm 002 cannot reach and is a region 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 robot arm 002.

[0018] FIG. 4 shows an embodiment in which the workbench 001 is used for a collaborative welding robot 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 robot arm that works on the table, and for example, it can be applied to various work robots such as welding, assembly, painting, and polishing.

Industrial Applicability

[0019] The present invention can be widely applied to various operations in the manufacturing industry. By using the workbench of the present invention, the efficiency and quality of the work can be improved. ​​​​​​​​​​​​​​​​​​​​​​​​​​​

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.